{"id":2253,"date":"2023-04-12T17:33:12","date_gmt":"2023-04-12T17:33:12","guid":{"rendered":"https:\/\/vibromera.eu\/?p=2253"},"modified":"2026-07-03T10:49:21","modified_gmt":"2026-07-03T10:49:21","slug":"2253","status":"publish","type":"post","link":"https:\/\/vibromera.eu\/ro\/content\/2253\/","title":{"rendered":"Introducere \u00een echilibrarea rotorului"},"content":{"rendered":"<div id=\"pl-2253\"  class=\"panel-layout\" ><div id=\"pg-2253-0\"  class=\"panel-grid panel-no-style\" ><div id=\"pgc-2253-0-0\"  class=\"panel-grid-cell\" ><div id=\"panel-2253-0-0-0\" class=\"widget_text so-panel widget widget_custom_html panel-first-child panel-last-child\" data-index=\"0\" ><div class=\"textwidget custom-html-widget\"><style>\n  \/* Scoped typography for Custom HTML (does not affect the rest of the site) *\/\n  #rb-article { font-size: 16px; line-height: 1.6; }\n  #rb-article, #rb-article * { box-sizing: border-box; }\n\n  #rb-article h1 { font-size: 28px; line-height: 1.25; margin: 0 0 16px; font-weight: 700; }\n  #rb-article h2 { font-size: 22px; line-height: 1.3; margin: 24px 0 12px; font-weight: 700; }\n  #rb-article h3 { font-size: 18px; line-height: 1.35; margin: 18px 0 10px; font-weight: 700; }\n\n  #rb-article p { margin: 0 0 12px; }\n  #rb-article ul, #rb-article ol { margin: 0 0 12px 20px; padding: 0; }\n  #rb-article li { margin: 0 0 6px; }\n\n  #rb-article a { text-decoration: underline; }\n  #rb-article figure { margin: 16px auto; }\n  #rb-article figcaption { font-size: 13px; line-height: 1.4; margin-top: 6px; color: #555; }\n\n  \/* Keep embedded video responsive *\/\n  #rb-article .rb-video { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; }\n  #rb-article .rb-video iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0; }\n\n  \/* Keep the table of contents compact *\/\n  #rb-article #toc + ul { margin-top: 8px; }\n\n  @media (max-width: 480px) {\n    #rb-article h1 { font-size: 24px; }\n    #rb-article h2 { font-size: 20px; }\n    #rb-article h3 { font-size: 17px; }\n  }\n<\/style>\n\n<section id=\"rb-article\">\n<h1 style=\"text-align:center;\">Echilibrarea rotorului: dezechilibru static \u0219i dinamic, rezonan\u021b\u0103 \u0219i procedur\u0103 practic\u0103<\/h1>\n\n<p>Acest ghid explic\u0103 echilibrarea rotorului pentru <strong>rotoare rigide<\/strong>: ce \u00eenseamn\u0103 \"dezechilibru\", cum difer\u0103 dezechilibrul static de cel dinamic, de ce rezonan\u021ba \u0219i neliniaritatea pot \u00eempiedica un rezultat de calitate \u0219i cum se efectueaz\u0103 de obicei echilibrarea \u00eentr-unul sau dou\u0103 planuri de corec\u021bie.<\/p>\n\n\t\t<section class=\"woocommerce hestia-shop products is-shortcode\" id=\"products\" data-sorder=\"hestia_shop\" >\n\t\t\t\t\t\t<div class=\"\">\n\t\t\t\t\t\t<div class=\"hestia-shop-content\">\n\t\t\t<div class=\"row\" data-aos=\"fade-up\" >\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/balanset-1\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/balanset-1\/\" title=\"Echilibrator portabil \u0219i analizor de vibra\u021bii Balanset-1A\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Balanset-1A kit complet \u2014 echilibrator portabil \u0219i analizor de vibra\u021bii\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-272x182.webp 272w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/ro\/product-category\/devices\/\" rel=\"tag\">Dispozitive<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/ro\/product\/balanset-1\/\" title=\"Echilibrator portabil \u0219i analizor de vibra\u021bii Balanset-1A\">Echilibrator portabil \u0219i analizor de vibra\u021bii Balanset-1A<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>1,975.00<\/span> + TVA (dac\u0103 este cazul)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/ro\/wp-json\/wp\/v2\/posts\/2253?add-to-cart=986\" data-quantity=\"1\" data-product_id=\"986\" data-product_sku=\"BS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/ro\/wp-json\/wp\/v2\/posts\/2253?add-to-cart=986\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_986\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"986\" data-product_sku=\"BS-1\" aria-label=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Portable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u201ePortable balancer &amp; Vibration analyzer Balanset-1A\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_986\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/vibration-sensor\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/vibration-sensor\/\" title=\"Senzor de vibra\u021bii\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Prim-plan senzor de vibra\u021bii Balanset-1A\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3.webp 1280w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/ro\/product-category\/parts\/\" rel=\"tag\">Piese<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/ro\/product\/vibration-sensor\/\" title=\"Senzor de vibra\u021bii\">Senzor de vibra\u021bii<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>90.00<\/span> + TVA (dac\u0103 este cazul)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/ro\/wp-json\/wp\/v2\/posts\/2253?add-to-cart=1820\" data-quantity=\"1\" data-product_id=\"1820\" data-product_sku=\"VS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/ro\/wp-json\/wp\/v2\/posts\/2253?add-to-cart=1820\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1820\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1820\" data-product_sku=\"VS-1\" aria-label=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Vibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u201eVibration sensor\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1820\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/optical-sensor-for-balanset-and-arbalance\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Senzor optic (tahometru cu laser)\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Senzor optic (tahometru cu laser)\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-1536x1023.webp 1536w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU.webp 1600w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/ro\/product-category\/parts\/\" rel=\"tag\">Piese<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/ro\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Senzor optic (tahometru cu laser)\">Senzor optic (tahometru cu laser)<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>124.00<\/span> + TVA (dac\u0103 este cazul)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/ro\/wp-json\/wp\/v2\/posts\/2253?add-to-cart=1832\" data-quantity=\"1\" data-product_id=\"1832\" data-product_sku=\"Tach-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/ro\/wp-json\/wp\/v2\/posts\/2253?add-to-cart=1832\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1832\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1832\" data-product_sku=\"Tach-1\" aria-label=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Optical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u201eOptical Sensor (Laser Tachometer)\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1832\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/balanset-4\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/balanset-4\/\" title=\"Balanset-4\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Kit de echilibrare a rotorului Vibromera: geant\u0103 de transport, condi\u021bioner de semnal multicanal, analizor portabil, baz\u0103 magnetic\u0103, senzori de vibra\u021bii \u0219i cabluri spiralate.\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4.webp 640w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/ro\/product-category\/devices\/\" rel=\"tag\">Dispozitive<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/ro\/product\/balanset-4\/\" title=\"Balanset-4\">Balanset-4<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>6,803.00<\/span> + TVA (dac\u0103 este cazul)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/ro\/wp-json\/wp\/v2\/posts\/2253?add-to-cart=1833\" data-quantity=\"1\" data-product_id=\"1833\" data-product_sku=\"BS-4\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/ro\/wp-json\/wp\/v2\/posts\/2253?add-to-cart=1833\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1833\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1833\" data-product_sku=\"BS-4\" aria-label=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Balanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u201eBalanset-4\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1833\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div><!-- \/.row --><div class=\"row\">\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/magnet-stand\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/magnet-stand\/\" title=\"Stand magnetic Insize-60-kgf\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Baza magnetic\u0103.\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36.webp 1280w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/ro\/product-category\/parts\/\" rel=\"tag\">Piese<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/ro\/product\/magnet-stand\/\" title=\"Stand magnetic Insize-60-kgf\">Stand magnetic Insize-60-kgf<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>46.00<\/span> + TVA (dac\u0103 este cazul)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/ro\/wp-json\/wp\/v2\/posts\/2253?add-to-cart=1852\" data-quantity=\"1\" data-product_id=\"1852\" data-product_sku=\"MS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/ro\/wp-json\/wp\/v2\/posts\/2253?add-to-cart=1852\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1852\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1852\" data-product_sku=\"MS-1\" aria-label=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Magnetic Stand Insize-60-kgf\u201d\" rel=\"nofollow\" data-success_message=\"\u201eMagnetic Stand Insize-60-kgf\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1852\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/reflective-tape\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/reflective-tape\/\" title=\"Band\u0103 reflectorizant\u0103\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Band\u0103 reflectorizant\u0103\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-16x12.webp 16w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-272x182.webp 272w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/ro\/product-category\/parts\/\" rel=\"tag\">Piese<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/ro\/product\/reflective-tape\/\" title=\"Band\u0103 reflectorizant\u0103\">Band\u0103 reflectorizant\u0103<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>10.00<\/span> + TVA (dac\u0103 este cazul)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/ro\/wp-json\/wp\/v2\/posts\/2253?add-to-cart=2329\" data-quantity=\"1\" data-product_id=\"2329\" data-product_sku=\"rt-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/ro\/wp-json\/wp\/v2\/posts\/2253?add-to-cart=2329\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_2329\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"2329\" data-product_sku=\"rt-1\" aria-label=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Reflective tape\u201d\" rel=\"nofollow\" data-success_message=\"\u201eReflective tape\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_2329\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/dynamic-balancer-balanset-1a\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/dynamic-balancer-balanset-1a\/\" title=\"Echilibrator dinamic &quot;Balanset-1A&quot; OEM\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Con\u021binutul kitului Balanset-1A cu unitate de interfa\u021b\u0103, senzori, tahometru \u0219i accesorii\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-1024x683.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-1536x1024.webp 1536w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-2048x1366.webp 2048w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-e1732998877834.webp 708w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/ro\/product-category\/devices\/\" rel=\"tag\">Dispozitive<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/ro\/product\/dynamic-balancer-balanset-1a\/\" title=\"Echilibrator dinamic &quot;Balanset-1A&quot; OEM\">Echilibrator dinamic \"Balanset-1A\" OEM<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>1,735.00<\/span> + TVA (dac\u0103 este cazul)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/ro\/wp-json\/wp\/v2\/posts\/2253?add-to-cart=4193\" data-quantity=\"1\" data-product_id=\"4193\" data-product_sku=\"BS-1OEM\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/ro\/wp-json\/wp\/v2\/posts\/2253?add-to-cart=4193\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_4193\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"4193\" data-product_sku=\"BS-1OEM\" aria-label=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Dynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"\u201eDynamic balancer \u201cBalanset-1A\u201d OEM\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_4193\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/section>\n\t\t\n\n<h2 id=\"toc\">Cuprins<\/h2>\n\n<ul>\n<li><a href=\"#what-is-rotor\">Ce este un rotor \u0219i ce corecteaz\u0103 echilibrarea?<\/a><\/li>\n<li><a href=\"#types-of-rotors\">Tipuri de rotoare \u0219i tipuri de dezechilibru<\/a><\/li>\n<li><a href=\"#vibration\">Vibra\u021bia mecanismelor: ce poate \u0219i ce nu poate elimina echilibrarea<\/a><\/li>\n<li><a href=\"#resonance\">Rezonan\u021ba: un factor care \u00eempiedic\u0103 echilibrarea<\/a><\/li>\n<li><a href=\"#linear-nonlinear\">Modele liniare vs. modele neliniare: c\u00e2nd calculele nu mai func\u021bioneaz\u0103<\/a><\/li>\n<li><a href=\"#devices\">Dispozitive de echilibrare \u0219i ma\u0219ini de echilibrare<\/a><\/li>\n<li><a href=\"#rigid-rotor-balancing\">Echilibrarea rotoarelor rigide (note practice)<\/a><\/li>\n<li><a href=\"#three-run-method\">Cum se realizeaz\u0103 echilibrarea dinamic\u0103 (metoda \u00een trei etape)<\/a><\/li>\n<li><a href=\"#quality-criteria\">Criterii pentru evaluarea calit\u0103\u021bii echilibr\u0103rii<\/a><\/li>\n<li><a href=\"#standards\">Standarde \u0219i referin\u021be<\/a><\/li>\n<li><a href=\"#faq\">\u00ceNTREB\u0102RI FRECVENTE<\/a><\/li>\n<\/ul>\n\n<h2 id=\"what-is-rotor\">Ce este un rotor \u0219i ce corecteaz\u0103 echilibrarea?<\/h2>\n\n<p>Rotorul este un corp care se rote\u0219te \u00een jurul unei anumite axe \u0219i este \u021binut de suprafe\u021bele sale de reazem \u00een suporturi. Suprafe\u021bele de reazem ale rotorului transmit sarcini c\u0103tre suporturi prin intermediul unor rulmen\u021bi sau lag\u0103re de alunecare. Suprafe\u021bele de reazem sunt suprafe\u021bele cepurilor sau suprafe\u021bele care le \u00eenlocuiesc.<\/p>\n\n<figure style=\"text-align:center;margin:1em auto;max-width:640px;\">\n  <img decoding=\"async\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/04\/image2.png\" alt=\"Fig.1 Rotorul \u0219i for\u021bele centrifuge care ac\u021bioneaz\u0103 asupra lui.\" width=\"640\" height=\"460\" loading=\"lazy\" style=\"max-width:100%;height:auto;\" \/>\n  <figcaption>Fig.1 Rotorul \u0219i for\u021bele centrifuge care ac\u021bioneaz\u0103 asupra lui.<\/figcaption>\n<\/figure>\n<p>\u00centr-un rotor perfect echilibrat, masa sa este distribuit\u0103 simetric fa\u021b\u0103 de axa de rota\u021bie, adic\u0103 orice element al rotorului poate fi asociat cu un alt element situat simetric fa\u021b\u0103 de axa de rota\u021bie. \u00centr-un rotor echilibrat, for\u021ba centrifug\u0103 care ac\u021bioneaz\u0103 asupra oric\u0103rui element al rotorului este echilibrat\u0103 de for\u021ba centrifug\u0103 care ac\u021bioneaz\u0103 asupra elementului simetric. De exemplu, for\u021bele centrifuge F1 \u0219i F2, egale ca m\u0103rime \u0219i de direc\u021bie opus\u0103, ac\u021bioneaz\u0103 asupra elementelor 1 \u0219i 2 (marcate cu verde \u00een Fig. 1). Acest lucru este valabil pentru toate elementele simetrice ale rotorului \u0219i, prin urmare, for\u021ba centrifug\u0103 total\u0103 care ac\u021bioneaz\u0103 asupra rotorului este 0 \u0219i rotorul este echilibrat.<\/p>\n<p>Dar dac\u0103 simetria rotorului este rupt\u0103 (elementul asimetric este marcat cu ro\u0219u \u00een Fig. 1), atunci asupra rotorului ac\u021bioneaz\u0103 for\u021ba centrifug\u0103 dezechilibrat\u0103 F3. \u00cen timpul rota\u021biei, aceast\u0103 for\u021b\u0103 \u00ee\u0219i schimb\u0103 direc\u021bia odat\u0103 cu rota\u021bia rotorului. Sarcina dinamic\u0103 rezultat\u0103 din aceast\u0103 for\u021b\u0103 se transmite la rulmen\u021bi, ceea ce duce la uzur\u0103 accelerat\u0103.<\/p>\n<p>\u00cen plus, sub influen\u021ba acestei for\u021be cu direc\u021bie variabil\u0103 apare o deformare ciclic\u0103 a supor\u021bilor \u0219i a funda\u021biei pe care este fixat rotorul, adic\u0103 apare vibra\u021bia. Pentru a elimina dezechilibrul rotorului \u0219i vibra\u021bia \u00eenso\u021bitoare, trebuie instalate mase de echilibrare pentru a restabili simetria rotorului.<\/p>\n<p>Echilibrarea rotorului este o opera\u021biune de corectare a dezechilibrului prin ad\u0103ugarea de mase de echilibrare.<br \/>Sarcina de echilibrare este de a g\u0103si dimensiunea \u0219i pozi\u021bia (unghiul) uneia sau mai multor mase de echilibrare.<\/p>\n\n<h2 id=\"types-of-rotors\">Tipuri de rotoare \u0219i tipuri de dezechilibru<\/h2>\n<p>Lu\u00e2nd \u00een considerare rezisten\u021ba materialului rotorului \u0219i magnitudinea for\u021belor centrifuge care ac\u021bioneaz\u0103 asupra acestuia, rotoarele pot fi \u00eemp\u0103r\u021bite \u00een dou\u0103 tipuri - rotoare rigide \u0219i rotoare flexibile.<br \/><span style=\"color: #000000\">Rotoarele rigide se deformeaz\u0103 \u00een mod nesemnificativ sub ac\u021biunea for\u021bei centrifuge \u00een modurile de lucru, iar influen\u021ba acestei deform\u0103ri \u00een calcule poate fi neglijat\u0103.<\/span><\/p>\n<p>Deformarea rotoarelor flexibile nu mai poate fi neglijat\u0103. Deformarea rotoarelor flexibile complic\u0103 solu\u021bionarea problemei de echilibrare \u0219i necesit\u0103 aplicarea altor modele matematice \u00een compara\u021bie cu problema echilibr\u0103rii rotoarelor rigide. Trebuie men\u021bionat c\u0103 acela\u0219i rotor la viteze mici se poate comporta ca rigid, iar la viteze mari - ca flexibil. \u00cen continuare, vom lua \u00een considerare doar echilibrarea rotoarelor rigide.<\/p>\n<p>\u00cen func\u021bie de distribu\u021bia maselor dezechilibrate de-a lungul lungimii rotorului, se pot distinge dou\u0103 tipuri de dezechilibru - static \u0219i dinamic (momentan). \u00cen consecin\u021b\u0103, se face referire la echilibrarea static\u0103 \u0219i dinamic\u0103 a rotorului. Dezechilibrul static al rotorului apare f\u0103r\u0103 rotirea rotorului, adic\u0103 \u00een static\u0103, atunci c\u00e2nd rotorul este inversat de gravita\u021bie cu \"punctul s\u0103u greu\" \u00een jos. Un exemplu de rotor cu dezechilibru static este prezentat \u00een Fig. 2.<\/p>\n<figure style=\"text-align:center;margin:1em auto;max-width:640px;\">\n  <img decoding=\"async\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/04\/image3-1.png\" alt=\"Fig.2 Dezechilibrul static al rotorului. Sub ac\u021biunea gravita\u021biei, &quot;punctul greu&quot; se rote\u0219te \u00een jos\" width=\"640\" height=\"386\" loading=\"lazy\" style=\"max-width:100%;height:auto;\" \/>\n  <figcaption>Fig.2 Dezechilibru static al rotorului. Sub ac\u021biunea gravita\u021biei, \u201cpunctul greu\u201d se rote\u0219te \u00een jos.<\/figcaption>\n<\/figure>\n<p>Dezechilibrul dinamic apare numai atunci c\u00e2nd rotorul se rote\u0219te.<br \/>Un exemplu de rotor cu dezechilibru dinamic este prezentat \u00een figura 3.<\/p>\n<figure style=\"text-align:center;margin:1em auto;max-width:638px;\">\n  <img decoding=\"async\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/04\/image4.png\" alt=\"Fig.3 Dezechilibrul dinamic al rotorului. For\u021bele Fc1 \u0219i Fc2 creeaz\u0103 un moment care tinde s\u0103 dezechilibreze rotorul.\" width=\"638\" height=\"371\" loading=\"lazy\" style=\"max-width:100%;height:auto;\" \/>\n  <figcaption>Fig.3 Dezechilibrul dinamic al rotorului. For\u021bele Fc1 \u0219i Fc2 creeaz\u0103 un moment care tinde s\u0103 dezechilibreze rotorul.<\/figcaption>\n<\/figure>\n<p>\u00cen acest caz, masele egale dezechilibrate M1 \u0219i M2 se afl\u0103 \u00een planuri diferite - \u00een locuri diferite de-a lungul rotorului. \u00cen pozi\u021bie static\u0103, adic\u0103 atunci c\u00e2nd rotorul nu se rote\u0219te, asupra rotorului ac\u021bioneaz\u0103 doar gravita\u021bia, iar masele se echilibreaz\u0103 reciproc. \u00cen dinamic\u0103, c\u00e2nd rotorul se rote\u0219te, for\u021bele centrifuge Fc1 \u0219i Fc2 \u00eencep s\u0103 ac\u021bioneze asupra maselor M1 \u0219i M2. Aceste for\u021be au magnitudine egal\u0103 \u0219i direc\u021bii opuse. Cu toate acestea, deoarece sunt aplicate \u00een locuri diferite de-a lungul arborelui \u0219i nu se afl\u0103 pe aceea\u0219i linie, aceste for\u021be nu se compenseaz\u0103 reciproc. For\u021bele Fc1 \u0219i Fc2 creeaz\u0103 un cuplu aplicat rotorului. Prin urmare, acest dezechilibru se nume\u0219te \u0219i dezechilibru de moment. \u00cen consecin\u021b\u0103, for\u021bele centrifuge necompensate ac\u021bioneaz\u0103 asupra pozi\u021biilor lag\u0103relor, care pot dep\u0103\u0219i considerabil valorile calculate \u0219i pot reduce durata de via\u021b\u0103 a lag\u0103relor.<\/p>\n<p>\u00centruc\u00e2t acest tip de dezechilibru apare doar dinamic \u00een timpul rota\u021biei rotorului, se nume\u0219te dezechilibru dinamic. Nu poate fi corectat \u00een condi\u021bii statice prin echilibrare \"pe cu\u021bite\" sau metode similare. Pentru a elimina dezechilibrul dinamic, trebuie instalate dou\u0103 greut\u0103\u021bi compensatoare, care produc un moment egal \u00een m\u0103rime \u0219i opus \u00een direc\u021bie cu momentul provenit de la masele M1 \u0219i M2. Masele compensatoare nu trebuie s\u0103 fie amplasate opus \u0219i egale \u00een m\u0103rime cu masele M1 \u0219i M2. Principalul lucru este c\u0103 acestea produc un moment care compenseaz\u0103 complet momentul dezechilibrului.<\/p>\n<p>\u00cen general, masele M1 \u0219i M2 pot s\u0103 nu fie egale \u00eentre ele, deci va exista o combina\u021bie de dezechilibru static \u0219i dinamic. Este dovedit teoretic c\u0103 pentru un rotor rigid sunt necesare \u0219i suficiente dou\u0103 greut\u0103\u021bi distan\u021bate pe lungimea rotorului pentru a elimina dezechilibrul acestuia. Aceste greut\u0103\u021bi vor compensa at\u00e2t cuplul rezultat din dezechilibrul dinamic, c\u00e2t \u0219i for\u021ba centrifug\u0103 rezultat\u0103 din asimetria masei fa\u021b\u0103 de axa rotorului (dezechilibru static). De obicei, dezechilibrul dinamic este caracteristic rotoarelor lungi, cum ar fi arborii, iar dezechilibrul static este caracteristic rotoarelor \u00eenguste. Cu toate acestea, dac\u0103 rotorul \u00eengust este \u00eenclinat fa\u021b\u0103 de ax\u0103 sau deformat (\"figura opt\"), atunci dezechilibrul dinamic va fi dificil de eliminat (vezi Fig. 4), deoarece \u00een acest caz este dificil s\u0103 se instaleze greut\u0103\u021bi corectoare care s\u0103 creeze momentul compensator necesar.<\/p>\n<figure style=\"text-align:center;margin:1em auto;max-width:386px;\">\n  <img decoding=\"async\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/04\/image5.png\" alt=\"Fig.4 Dezechilibrul dinamic al rotorului \u00eengust.\" width=\"386\" height=\"268\" loading=\"lazy\" style=\"max-width:100%;height:auto;\" \/>\n  <figcaption>Fig.4 Dezechilibrul dinamic al rotorului \u00eengust.<\/figcaption>\n<\/figure>\n<p>For\u021bele F1 \u0219i F2 nu se afl\u0103 pe aceea\u0219i linie \u0219i nu se compenseaz\u0103 reciproc.<br \/>Din cauza faptului c\u0103 bra\u021bul pentru crearea momentului este mic, din cauza rotorului \u00eengust, pot fi necesare greut\u0103\u021bi mari de corec\u021bie. Totu\u0219i, acest lucru duce \u0219i la un \u201edezechilibru indus\u201d din cauza deform\u0103rii rotorului \u00eengust de c\u0103tre for\u021bele centrifuge provenite de la greut\u0103\u021bile de corec\u021bie. (Vezi, de exemplu, \u201eInstruc\u021biuni metodologice pentru echilibrarea rotoarelor rigide (la GOST 22061-76; corespondentul s\u0103u interna\u021bional modern este ISO 21940-11, anterior ISO 1940-1)\u201d. Sec\u021biunea 10. SISTEMUL ROTOR-SUPOR\u021aI. )<\/p>\n<p>Acest lucru este vizibil pentru rotoarele \u00eenguste ale ventilatoarelor, \u00een care, pe l\u00e2ng\u0103 dezechilibrul de for\u021b\u0103, este activ \u0219i dezechilibrul aerodinamic. \u0218i trebuie s\u0103 se \u00een\u021beleag\u0103 c\u0103 dezechilibrul aerodinamic, sau mai degrab\u0103 for\u021ba aerodinamic\u0103 este direct propor\u021bional\u0103 cu viteza unghiular\u0103 a rotorului, iar pentru compensarea acesteia se folose\u0219te for\u021ba centrifug\u0103 a masei de corec\u021bie, care este propor\u021bional\u0103 cu p\u0103tratul vitezei unghiulare. Prin urmare, efectul de echilibrare poate avea loc numai la o anumit\u0103 frecven\u021b\u0103 de echilibrare. La alte frecven\u021be de rota\u021bie exist\u0103 o eroare suplimentar\u0103.<\/p>\n<p>Acela\u0219i lucru se poate spune \u0219i despre for\u021bele electromagnetice dintr-un motor electric, care sunt, de asemenea, propor\u021bionale cu viteza unghiular\u0103. A\u0219adar, nu este posibil s\u0103 se elimine toate cauzele de vibra\u021bii dintr-o ma\u0219in\u0103 prin echilibrare.<\/p>\n\n<h2 id=\"vibration\">Vibra\u021biile mecanismelor<\/h2>\n<p>Vibra\u021bia este reac\u021bia structurii mecanismului la efectele unei for\u021be excitatoare ciclice. Aceast\u0103 for\u021b\u0103 poate fi de natur\u0103 diferit\u0103.<br \/>For\u021ba centrifug\u0103 rezultat\u0103 din dezechilibrul rotorului este o for\u021b\u0103 necompensat\u0103 care ac\u021bioneaz\u0103 asupra \"punctului greu\". Aceast\u0103 for\u021b\u0103 \u0219i vibra\u021biile cauzate de aceasta pot fi eliminate prin echilibrarea rotorului.<\/p>\n<p>For\u021be de interac\u021biune de natur\u0103 \"geometric\u0103\" care apar din erori de fabrica\u021bie \u0219i asamblare a pieselor conjugate. Aceste for\u021be pot ap\u0103rea, de exemplu, ca urmare a ovalit\u0103\u021bii fusurilor arborilor, a erorilor \u00een profilurile din\u021bilor angrenajelor, a ondula\u021biei c\u0103ilor de rulare ale rulmen\u021bilor, a nealinierii arborilor conjuga\u021bi etc. \u00cen cazul non-circularit\u0103\u021bii fusurilor, axa arborelui va fi deplasat\u0103 \u00een func\u021bie de unghiul de rota\u021bie al acestuia. De\u0219i aceast\u0103 vibra\u021bie apare \u0219i la viteza rotorului, este aproape imposibil s\u0103 o elimini prin echilibrare.<\/p>\n<p>For\u021bele aerodinamice care rezult\u0103 din rota\u021bia rotoarelor ventilatoarelor \u0219i a altor mecanisme cu palete. For\u021be hidrodinamice care rezult\u0103 din rota\u021bia rotoarelor pompelor hidraulice, turbinelor etc.<br \/>For\u021bele electromagnetice care rezult\u0103 din func\u021bionarea ma\u0219inilor electrice, de exemplu, \u00eenf\u0103\u0219ur\u0103ri asimetrice ale rotorului, \u00eenf\u0103\u0219ur\u0103ri scurtcircuitate etc.<\/p>\n<p>Magnitudinea vibra\u021biei (de exemplu, amplitudinea Av) depinde nu numai de for\u021ba de excita\u021bie Fv care ac\u021bioneaz\u0103 asupra mecanismului cu frecven\u021ba circular\u0103 \u03c9, ci \u0219i de rigiditatea k a mecanismului, de masa m a acestuia, precum \u0219i de coeficientul de amortizare C.<\/p>\n<div style=\"text-align:center;margin:1em 0;\">\n  <img decoding=\"async\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/04\/cdd9842bec0cd7097cf30b3e2a3e6268.png\" alt=\"Formul\u0103: amplitudinea vibra\u021biei depinde de for\u021ba excitatorie, rigiditate, mas\u0103 \u0219i amortizare\" width=\"413\" height=\"67\" loading=\"lazy\" style=\"max-width:100%;height:auto;\" \/>\n<\/div>\n<p>Pentru m\u0103surarea vibra\u021biilor \u0219i a mecanismelor de echilibrare pot fi utilizate diferite tipuri de senzori, printre care:<\/p>\n<ul>\n<li>senzori absolu\u021bi de vibra\u021bii concepu\u021bi pentru a m\u0103sura accelera\u021bia vibra\u021biilor (accelerometre) \u0219i senzori de vitez\u0103 a vibra\u021biilor;<\/li>\n<li>senzori de vibra\u021bii relative - curen\u021bi turbionari sau capacitivi, concepu\u021bi pentru m\u0103surarea deplas\u0103rii vibra\u021biilor;<\/li>\n<li>\u00cen unele cazuri (atunci c\u00e2nd proiectarea mecanismului o permite), senzorii de for\u021b\u0103 pot fi utiliza\u021bi \u0219i pentru a evalua sarcina vibra\u021bional\u0103 a acestuia; \u00een special, ace\u0219tia sunt utiliza\u021bi pe scar\u0103 larg\u0103 pentru a m\u0103sura sarcina vibra\u021bional\u0103 a suporturilor ma\u0219inilor de echilibrare cu lag\u0103re rigide.<\/li>\n<\/ul>\n<p>A\u0219adar, vibra\u021bia este reac\u021bia unei ma\u0219ini la ac\u021biunea unor for\u021be externe. Magnitudinea vibra\u021biilor depinde nu numai de magnitudinea for\u021bei care ac\u021bioneaz\u0103 asupra mecanismului, ci \u0219i de rigiditatea construc\u021biei mecanismului. Una \u0219i aceea\u0219i for\u021b\u0103 poate duce la vibra\u021bii diferite. La o ma\u0219in\u0103 cu lag\u0103re rigide, chiar dac\u0103 vibra\u021biile sunt mici, lag\u0103rele pot fi supuse unor sarcini dinamice semnificative. De aceea, la echilibrarea ma\u0219inilor cu lag\u0103re rigide se utilizeaz\u0103 mai degrab\u0103 senzori de for\u021b\u0103 dec\u00e2t senzori de vibra\u021bii (accelerometre de vibra\u021bii).<\/p>\n<p>Senzorii de vibra\u021bii sunt utiliza\u021bi pe mecanisme cu suporturi relativ flexibile, atunci c\u00e2nd ac\u021biunea for\u021belor centrifuge dezechilibrate duce la o deformare vizibil\u0103 a suporturilor \u0219i la vibra\u021bii. Senzorii de for\u021b\u0103 se utilizeaz\u0103 pentru suporturi rigide, atunci c\u00e2nd chiar \u0219i for\u021bele semnificative datorate dezechilibrului nu conduc la vibra\u021bii semnificative.<\/p>\n<h2 id=\"resonance\">Rezonan\u021ba este un factor care \u00eempiedic\u0103 echilibrarea<\/h2>\n<p>Am men\u021bionat mai devreme c\u0103 rotoarele sunt \u00eemp\u0103r\u021bite \u00een rigide \u0219i flexibile. Rigiditatea sau flexibilitatea rotorului nu trebuie confundat\u0103 cu rigiditatea sau mobilitatea suporturilor (funda\u021biei) pe care este instalat rotorul. Un rotor este considerat rigid atunci c\u00e2nd deformarea (\u00eencovoierea) sa sub ac\u021biunea for\u021belor centrifuge poate fi neglijat\u0103. Deformarea unui rotor flexibil este relativ mare \u0219i nu poate fi neglijat\u0103.<\/p>\n<p>\u00cen acest articol, lu\u0103m \u00een considerare doar echilibrarea rotorilor rigizi. Un rotor rigid (nedeformabil) poate fi, la r\u00e2ndul s\u0103u, montat pe suporturi rigide sau mobile (flexibile). Este clar c\u0103 aceast\u0103 rigiditate\/suspensibilitate a suporturilor este, de asemenea, relativ\u0103, \u00een func\u021bie de viteza rotorului \u0219i de amploarea for\u021belor centrifuge rezultate. O limit\u0103 condi\u021bionat\u0103 este reprezentat\u0103 de frecven\u021ba vibra\u021biilor naturale ale suporturilor rotorului.<\/p>\n<p>\u00cen cazul sistemelor mecanice, forma \u0219i frecven\u021ba vibra\u021biilor naturale sunt determinate de masa \u0219i elasticitatea elementelor sistemului mecanic. Altfel spus, frecven\u021ba vibra\u021biilor naturale este o caracteristic\u0103 intern\u0103 a sistemului mecanic \u0219i nu depinde de for\u021bele externe. Fiind deviate de la starea de echilibru, suporturile datorit\u0103 elasticit\u0103\u021bii tind s\u0103 revin\u0103 \u00een pozi\u021bia de echilibru. Dar, din cauza iner\u021biei rotorului masiv, acest proces este de natura unor oscila\u021bii amortizate. Aceste vibra\u021bii sunt vibra\u021biile naturale ale sistemului rotor-suport. Frecven\u021ba lor depinde de raportul dintre masa rotorului \u0219i elasticitatea suporturilor.<\/p>\n<div style=\"text-align:center;margin:1em 0;\">\n  <img decoding=\"async\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/04\/6cf9ce259705c3c27b80b37a8f7a946e.png\" alt=\"Formul\u0103: frecven\u021ba natural\u0103 depinde de raportul dintre masa rotorului \u0219i elasticitatea suportului\" width=\"397\" height=\"45\" loading=\"lazy\" style=\"max-width:100%;height:auto;\" \/>\n<\/div>\n<p>Atunci c\u00e2nd rotorul \u00eencepe s\u0103 se roteasc\u0103 \u0219i frecven\u021ba de rota\u021bie se apropie de frecven\u021ba vibra\u021biilor naturale, amplitudinea vibra\u021biilor cre\u0219te brusc, ceea ce poate duce la distrugerea structurii.<\/p>\n<p>Se produce fenomenul de rezonan\u021b\u0103 mecanic\u0103. \u00cen zona de rezonan\u021b\u0103, o modificare a vitezei de rota\u021bie cu 100 rpm poate duce la o cre\u0219tere a vibra\u021biilor de zeci de ori. \u00cen acela\u0219i timp (\u00een zona de rezonan\u021b\u0103), faza de vibra\u021bie se modific\u0103 cu 180\u00b0.<\/p>\n<figure style=\"text-align:center;margin:1em auto;max-width:837px;\">\n  <img decoding=\"async\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/04\/1b4e5afdbac7813708ef3525057eb349.png\" alt=\"Fig.5 Modific\u0103ri ale amplitudinii \u0219i fazei oscila\u021biilor unui sistem mecanic la modificarea frecven\u021bei unei for\u021be exterioare.\" width=\"837\" height=\"245\" loading=\"lazy\" style=\"max-width:100%;height:auto;\" \/>\n  <figcaption>Fig.5 Modific\u0103ri ale amplitudinii \u0219i fazei oscila\u021biilor unui sistem mecanic la modificarea frecven\u021bei unei for\u021be exterioare.<\/figcaption>\n<\/figure>\n<p>\u00cen cazul \u00een care proiectarea mecanismului nu este reu\u0219it\u0103 \u0219i frecven\u021ba de func\u021bionare a rotorului este apropiat\u0103 de frecven\u021ba vibra\u021biilor naturale, atunci func\u021bionarea mecanismului devine imposibil\u0103 din cauza vibra\u021biilor inadmisibil de mari. Acest lucru nu este posibil \u00een mod obi\u0219nuit, deoarece chiar \u0219i o mic\u0103 modificare a vitezei va provoca o schimbare drastic\u0103 a parametrilor de vibra\u021bie. Pentru echilibrarea \u00een zona de rezonan\u021b\u0103, se folosesc metode speciale care nu sunt luate \u00een considerare \u00een acest articol.<\/p>\n<p>Este posibil s\u0103 se determine frecven\u021ba vibra\u021biilor naturale ale mecanismului \u00een regim de coast\u0103 (la oprirea rota\u021biei rotorului) sau prin metoda \u0219ocului, cu analiza spectral\u0103 ulterioar\u0103 a r\u0103spunsului sistemului la \u0219oc.<\/p>\n<p>Pentru mecanismele a c\u0103ror frecven\u021b\u0103 de rota\u021bie este mai mare dec\u00e2t frecven\u021ba de rezonan\u021b\u0103, adic\u0103 func\u021bioneaz\u0103 \u00een regim de rezonan\u021b\u0103, se consider\u0103 c\u0103 suporturile sunt \u00een mi\u0219care, iar pentru m\u0103surare se folosesc senzori de vibra\u021bii, \u00een principal vibroacelerometre, care m\u0103soar\u0103 accelera\u021bia elementelor structurale. Pentru mecanismele care func\u021bioneaz\u0103 \u00een regim de prerezonan\u021b\u0103, suporturile sunt considerate rigide. \u00cen acest caz, se utilizeaz\u0103 senzori de for\u021b\u0103.<\/p>\n<h2 id=\"linear-nonlinear\">Modele liniare \u0219i neliniare ale unui sistem mecanic. Non-linearitatea este un factor care \u00eempiedic\u0103 echilibrarea<\/h2>\n<p>La echilibrarea rotoarelor rigide, pentru calculele de echilibrare se utilizeaz\u0103 modele matematice numite modele liniare. Un model liniar \u00eenseamn\u0103 c\u0103, \u00eentr-un astfel de model, o m\u0103rime este propor\u021bional\u0103 (liniar\u0103) cu cealalt\u0103. De exemplu, dac\u0103 masa necompensat\u0103 de pe rotor este dublat\u0103, atunci valoarea vibra\u021biei va fi, de asemenea, dublat\u0103. Pentru rotoarele rigide, se poate utiliza un model liniar, deoarece acestea nu se deformeaz\u0103.<\/p>\n<p>\u00cen cazul rotorilor flexibili, modelul liniar nu mai poate fi utilizat. \u00cen cazul unui rotor flexibil, dac\u0103 masa punctului greu cre\u0219te \u00een timpul rota\u021biei, se va produce o deformare suplimentar\u0103 \u0219i, \u00een plus fa\u021b\u0103 de mas\u0103, va cre\u0219te \u0219i raza de amplasare a punctului greu. Prin urmare, pentru un rotor flexibil, vibra\u021biile vor cre\u0219te de peste dou\u0103 ori, iar metodele obi\u0219nuite de calcul nu vor func\u021biona.<\/p>\n<p>De asemenea, schimbarea elasticit\u0103\u021bii suporturilor la deform\u0103rile mari ale acestora, de exemplu, atunci c\u00e2nd la deform\u0103rile mici ale suporturilor lucreaz\u0103 unele elemente structurale, iar la cele mari sunt implicate alte elemente structurale. De aceea, nu se pot echilibra mecanisme care nu sunt fixate pe o funda\u021bie, ci, de exemplu, pur \u0219i simplu a\u0219ezate pe podea. \u00cen cazul unor vibra\u021bii semnificative, for\u021ba de dezechilibru poate trage mecanismul de pe podea, modific\u00e2nd astfel semnificativ caracteristicile de rigiditate ale sistemului. Picioarele motorului trebuie s\u0103 fie bine fixate, monturile cu \u0219uruburi trebuie s\u0103 fie bine str\u00e2nse, grosimea \u0219aibelor trebuie s\u0103 asigure o rigiditate suficient\u0103 a montajului etc. \u00cen cazul \u00een care rulmen\u021bii sunt rup\u021bi, sunt posibile o dezaliniere semnificativ\u0103 a arborelui \u0219i \u0219ocuri, ceea ce va duce, de asemenea, la o liniaritate slab\u0103 \u0219i la imposibilitatea de a efectua un echilibru de calitate.<\/p>\n<h2 id=\"devices\">Dispozitive de echilibrare \u0219i ma\u0219ini de echilibrare<\/h2>\n<p>Dup\u0103 cum s-a men\u021bionat mai sus, echilibrarea este procesul de aliniere a axei centrale principale de iner\u021bie cu axa de rota\u021bie a rotorului.<\/p>\n<p>Acest proces poate fi realizat prin dou\u0103 metode.<\/p>\n<p>Prima metod\u0103 implic\u0103 prelucrarea fusurilor rotorului astfel \u00eenc\u00e2t axa care trece prin centrele fusurilor s\u0103 coincid\u0103 cu axa central\u0103 principal\u0103 de iner\u021bie a rotorului. O astfel de tehnic\u0103 este rar utilizat\u0103 \u00een practic\u0103 \u0219i nu va fi discutat\u0103 \u00een detaliu \u00een acest articol.<\/p>\n<p>Cea de-a doua metod\u0103 (cea mai comun\u0103) implic\u0103 deplasarea, instalarea sau \u00eendep\u0103rtarea greut\u0103\u021bilor de corec\u021bie de pe rotor, care sunt plasate astfel \u00eenc\u00e2t axa de iner\u021bie a rotorului s\u0103 fie c\u00e2t mai aproape posibil de axa de rota\u021bie a acestuia.<\/p>\n<p>Deplasarea, ad\u0103ugarea sau \u00eendep\u0103rtarea greut\u0103\u021bilor de corec\u021bie \u00een timpul echilibr\u0103rii poate fi realizat\u0103 prin diverse opera\u021biuni tehnologice, inclusiv: g\u0103urire, frezare, suprafa\u021bare, sudare, \u00een\u0219urubare sau de\u0219urubare, ardere cu laser sau fascicul de electroni, electroliz\u0103, suprafa\u021bare electromagnetic\u0103 etc.<\/p>\n<p>Procesul de echilibrare poate fi realizat \u00een dou\u0103 moduri:<\/p>\n<ol>\n<li>echilibrarea rotoarelor asamblate (\u00een rulmen\u021bii proprii) cu ajutorul ma\u0219inilor de echilibrare;<\/li>\n<li>echilibrarea rotorilor pe ma\u0219ini de echilibrare. Pentru echilibrarea rotoarelor \u00een rulmen\u021bii proprii se utilizeaz\u0103 de obicei dispozitive de echilibrare specializate (truse), care permit m\u0103surarea vibra\u021biilor rotorului echilibrat la frecven\u021ba sa de rota\u021bie \u00een form\u0103 vectorial\u0103, adic\u0103 m\u0103surarea at\u00e2t a amplitudinii, c\u00e2t \u0219i a fazei vibra\u021biilor. \u00cen prezent, dispozitivele de mai sus sunt fabricate pe baza tehnologiei microprocesorului \u0219i (\u00een afar\u0103 de m\u0103surarea \u0219i analiza vibra\u021biilor) asigur\u0103 calculul automat al parametrilor greut\u0103\u021bilor de corec\u021bie, care ar trebui instalate pe rotor pentru a compensa dezechilibrul acestuia.<\/li>\n<\/ol>\n<p>Aceste dispozitive includ:<\/p>\n<ul>\n<li>o unitate de m\u0103surare \u0219i de calcul bazat\u0103 pe un calculator sau un controler industrial;<\/li>\n<li>Doi (sau mai mul\u021bi) senzori de vibra\u021bii;<\/li>\n<li>Un senzor de unghi de faz\u0103;<\/li>\n<li>accesorii pentru montarea senzorilor pe amplasament;<\/li>\n<li>software specializat, conceput pentru a efectua un ciclu complet de m\u0103surare a parametrilor de vibra\u021bie ai rotorului \u00eentr-unul, dou\u0103 sau mai multe planuri de corec\u021bie.<\/li>\n<\/ul>\n<p>\u00cen prezent, dou\u0103 tipuri de ma\u0219ini de echilibrare sunt cele mai r\u0103sp\u00e2ndite:<\/p>\n<ul>\n<li>Ma\u0219ini cu lag\u0103re moi (cu suporturi moi);<\/li>\n<li>Ma\u0219ini cu lag\u0103re dure (cu suporturi rigide).<\/li>\n<\/ul>\n<p>Ma\u0219inile cu lag\u0103re moi au suporturi relativ flexibile, de exemplu, bazate pe arcuri plate. Frecven\u021ba vibra\u021biilor naturale ale acestor suporturi este de obicei de 2-3 ori mai mic\u0103 dec\u00e2t frecven\u021ba de rota\u021bie a rotorului de echilibrare, care este montat pe ele. Senzorii de vibra\u021bii (accelerometre, senzori de vitez\u0103 a vibra\u021biilor etc.) sunt utiliza\u021bi de obicei la m\u0103surarea vibra\u021biilor suporturilor prerezonante ale ma\u0219inii.<\/p>\n<p>Ma\u0219inile de echilibrare cu prerezonan\u021b\u0103 utilizeaz\u0103 suporturi relativ rigide, ale c\u0103ror frecven\u021be proprii de vibra\u021bie trebuie s\u0103 fie de 2-3 ori mai mari dec\u00e2t frecven\u021ba de rota\u021bie a rotorului care se echilibreaz\u0103. Pentru a m\u0103sura sarcina de vibra\u021bie a suporturilor ma\u0219inilor de prerezonan\u021b\u0103 se utilizeaz\u0103 de obicei traductoare de for\u021b\u0103.<\/p>\n<p>Avantajul ma\u0219inilor de echilibrare pre-rezonan\u021b\u0103 este c\u0103 echilibrarea pe ele poate fi efectuat\u0103 la viteze relativ mici ale rotorului (p\u00e2n\u0103 la 400 - 500 rpm), ceea ce simplific\u0103 foarte mult proiectarea ma\u0219inii \u0219i a funda\u021biei acesteia \u0219i cre\u0219te productivitatea \u0219i siguran\u021ba echilibr\u0103rii.<\/p>\n\n\t\t<section class=\"woocommerce hestia-shop products is-shortcode\" id=\"products-2\" data-sorder=\"hestia_shop\" >\n\t\t\t\t\t\t<div class=\"\">\n\t\t\t\t\t\t<div class=\"hestia-shop-content\">\n\t\t\t<div class=\"row\" data-aos=\"fade-up\" >\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/balanset-1\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/balanset-1\/\" title=\"Echilibrator portabil \u0219i analizor de vibra\u021bii Balanset-1A\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Balanset-1A kit complet \u2014 echilibrator portabil \u0219i analizor de vibra\u021bii\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-272x182.webp 272w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/ro\/product-category\/devices\/\" rel=\"tag\">Dispozitive<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/ro\/product\/balanset-1\/\" title=\"Echilibrator portabil \u0219i analizor de vibra\u021bii Balanset-1A\">Echilibrator portabil \u0219i analizor de vibra\u021bii Balanset-1A<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>1,975.00<\/span> + TVA (dac\u0103 este cazul)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/ro\/wp-json\/wp\/v2\/posts\/2253?add-to-cart=986\" data-quantity=\"1\" data-product_id=\"986\" data-product_sku=\"BS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/ro\/wp-json\/wp\/v2\/posts\/2253?add-to-cart=986\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_986\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"986\" data-product_sku=\"BS-1\" aria-label=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Portable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u201ePortable balancer &amp; Vibration analyzer Balanset-1A\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_986\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/vibration-sensor\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/vibration-sensor\/\" title=\"Senzor de vibra\u021bii\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Prim-plan senzor de vibra\u021bii Balanset-1A\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3.webp 1280w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/ro\/product-category\/parts\/\" rel=\"tag\">Piese<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/ro\/product\/vibration-sensor\/\" title=\"Senzor de vibra\u021bii\">Senzor de vibra\u021bii<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>90.00<\/span> + TVA (dac\u0103 este cazul)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/ro\/wp-json\/wp\/v2\/posts\/2253?add-to-cart=1820\" data-quantity=\"1\" data-product_id=\"1820\" data-product_sku=\"VS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/ro\/wp-json\/wp\/v2\/posts\/2253?add-to-cart=1820\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1820\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1820\" data-product_sku=\"VS-1\" aria-label=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Vibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u201eVibration sensor\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1820\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/optical-sensor-for-balanset-and-arbalance\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Senzor optic (tahometru cu laser)\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Senzor optic (tahometru cu laser)\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-1536x1023.webp 1536w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU.webp 1600w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/ro\/product-category\/parts\/\" rel=\"tag\">Piese<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/ro\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Senzor optic (tahometru cu laser)\">Senzor optic (tahometru cu laser)<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>124.00<\/span> + TVA (dac\u0103 este cazul)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/ro\/wp-json\/wp\/v2\/posts\/2253?add-to-cart=1832\" data-quantity=\"1\" data-product_id=\"1832\" data-product_sku=\"Tach-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/ro\/wp-json\/wp\/v2\/posts\/2253?add-to-cart=1832\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1832\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1832\" data-product_sku=\"Tach-1\" aria-label=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Optical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u201eOptical Sensor (Laser Tachometer)\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1832\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/balanset-4\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/balanset-4\/\" title=\"Balanset-4\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Kit de echilibrare a rotorului Vibromera: geant\u0103 de transport, condi\u021bioner de semnal multicanal, analizor portabil, baz\u0103 magnetic\u0103, senzori de vibra\u021bii \u0219i cabluri spiralate.\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4.webp 640w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/ro\/product-category\/devices\/\" rel=\"tag\">Dispozitive<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/ro\/product\/balanset-4\/\" title=\"Balanset-4\">Balanset-4<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>6,803.00<\/span> + TVA (dac\u0103 este cazul)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/ro\/wp-json\/wp\/v2\/posts\/2253?add-to-cart=1833\" data-quantity=\"1\" data-product_id=\"1833\" data-product_sku=\"BS-4\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/ro\/wp-json\/wp\/v2\/posts\/2253?add-to-cart=1833\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1833\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1833\" data-product_sku=\"BS-4\" aria-label=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Balanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u201eBalanset-4\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1833\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div><!-- \/.row --><div class=\"row\">\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/magnet-stand\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/magnet-stand\/\" title=\"Stand magnetic Insize-60-kgf\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Baza magnetic\u0103.\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36.webp 1280w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/ro\/product-category\/parts\/\" rel=\"tag\">Piese<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/ro\/product\/magnet-stand\/\" title=\"Stand magnetic Insize-60-kgf\">Stand magnetic Insize-60-kgf<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>46.00<\/span> + TVA (dac\u0103 este cazul)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/ro\/wp-json\/wp\/v2\/posts\/2253?add-to-cart=1852\" data-quantity=\"1\" data-product_id=\"1852\" data-product_sku=\"MS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/ro\/wp-json\/wp\/v2\/posts\/2253?add-to-cart=1852\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1852\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1852\" data-product_sku=\"MS-1\" aria-label=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Magnetic Stand Insize-60-kgf\u201d\" rel=\"nofollow\" data-success_message=\"\u201eMagnetic Stand Insize-60-kgf\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1852\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/reflective-tape\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/reflective-tape\/\" title=\"Band\u0103 reflectorizant\u0103\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Band\u0103 reflectorizant\u0103\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-16x12.webp 16w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-272x182.webp 272w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/ro\/product-category\/parts\/\" rel=\"tag\">Piese<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/ro\/product\/reflective-tape\/\" title=\"Band\u0103 reflectorizant\u0103\">Band\u0103 reflectorizant\u0103<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>10.00<\/span> + TVA (dac\u0103 este cazul)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/ro\/wp-json\/wp\/v2\/posts\/2253?add-to-cart=2329\" data-quantity=\"1\" data-product_id=\"2329\" data-product_sku=\"rt-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/ro\/wp-json\/wp\/v2\/posts\/2253?add-to-cart=2329\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_2329\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"2329\" data-product_sku=\"rt-1\" aria-label=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Reflective tape\u201d\" rel=\"nofollow\" data-success_message=\"\u201eReflective tape\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_2329\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/dynamic-balancer-balanset-1a\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/ro\/product\/dynamic-balancer-balanset-1a\/\" title=\"Echilibrator dinamic &quot;Balanset-1A&quot; OEM\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Con\u021binutul kitului Balanset-1A cu unitate de interfa\u021b\u0103, senzori, tahometru \u0219i accesorii\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-1024x683.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-1536x1024.webp 1536w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-2048x1366.webp 2048w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-e1732998877834.webp 708w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/ro\/product-category\/devices\/\" rel=\"tag\">Dispozitive<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/ro\/product\/dynamic-balancer-balanset-1a\/\" title=\"Echilibrator dinamic &quot;Balanset-1A&quot; OEM\">Echilibrator dinamic \"Balanset-1A\" OEM<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>1,735.00<\/span> + TVA (dac\u0103 este cazul)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/ro\/wp-json\/wp\/v2\/posts\/2253?add-to-cart=4193\" data-quantity=\"1\" data-product_id=\"4193\" data-product_sku=\"BS-1OEM\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/ro\/wp-json\/wp\/v2\/posts\/2253?add-to-cart=4193\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_4193\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"4193\" data-product_sku=\"BS-1OEM\" aria-label=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Dynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"\u201eDynamic balancer \u201cBalanset-1A\u201d OEM\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_4193\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/section>\n\t\t\n<h2 id=\"rigid-rotor-balancing\">Echilibrarea rotoarelor rigide<\/h2>\n\n<p><strong><em>Aten\u021bie!<\/em><\/strong><\/p>\n<ul>\n<li><em><strong>Echilibrarea elimin\u0103 doar vibra\u021biile cauzate de distribu\u021bia asimetric\u0103 a masei rotorului \u00een raport cu axa de rota\u021bie a acestuia. Alte tipuri de vibra\u021bii nu sunt eliminate prin echilibrare!<\/strong><\/em><\/li>\n<li><em><strong>Mecanismele tehnice, a c\u0103ror proiectare asigur\u0103 absen\u021ba rezonan\u021belor la frecven\u021ba de func\u021bionare a rota\u021biei, fixate \u00een mod fiabil pe funda\u021bie, instalate \u00een rulmen\u021bi \u00een stare bun\u0103 de func\u021bionare, fac obiectul echilibr\u0103rii.<\/strong><\/em><\/li>\n<li><em><strong>Ma\u0219inile defecte trebuie reparate \u00eenainte de echilibrare. \u00cen caz contrar, nu este posibil\u0103 o echilibrare de calitate. <\/strong><\/em><br \/><em><strong>Echilibrarea nu poate \u00eenlocui repara\u021bia!<\/strong><\/em><\/li>\n<\/ul>\n<p>Sarcina principal\u0103 a echilibr\u0103rii este de a g\u0103si masa \u0219i pozi\u021bia greut\u0103\u021bilor de compensare care contracareaz\u0103 for\u021bele centrifuge.<br \/>Dup\u0103 cum s-a men\u021bionat mai sus, pentru rotoarele rigide, este \u00een general necesar \u0219i suficient s\u0103 se instaleze dou\u0103 greut\u0103\u021bi de compensare. Acest lucru va elimina at\u00e2t dezechilibrul static, c\u00e2t \u0219i cel dinamic al rotorului. Schema general\u0103 de m\u0103surare a vibra\u021biilor \u00een timpul echilibr\u0103rii este urm\u0103toarea.<\/p>\n<figure style=\"text-align:center;margin:1em auto;max-width:511px;\">\n  <img decoding=\"async\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/04\/image6.png\" alt=\"Fig. 6 Selectarea punctelor de m\u0103surare \u0219i amplasarea greut\u0103\u021bilor (planuri de corec\u021bie) la echilibrarea \u00een dou\u0103 planuri\" width=\"511\" height=\"292\" loading=\"lazy\" style=\"max-width:100%;height:auto;\" \/>\n  <figcaption>Fig. 6 Selectarea punctelor de m\u0103surare \u0219i a amplasamentelor greut\u0103\u021bilor (planuri de corec\u021bie) la echilibrarea \u00een dou\u0103 plane.<\/figcaption>\n<\/figure>\n<p>Senzorii de vibra\u021bii sunt instala\u021bi pe suporturile de rulmen\u021bi \u00een punctele 1 \u0219i 2. Pe rotor se ata\u0219eaz\u0103 un marker de revolu\u021bie, de obicei cu band\u0103 reflectorizant\u0103. Marcajul de tura\u021bie este utilizat de tahometrul cu laser pentru a determina viteza rotorului \u0219i faza semnalului de vibra\u021bie.<\/p>\n<figure style=\"text-align:center;margin:1em auto;max-width:320px;\">\n  <img decoding=\"async\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/04\/image7.png\" alt=\"Fig. 7. Instalarea senzorilor la echilibrarea \u00een dou\u0103 planuri. 1,2 - senzori de vibra\u021bii, 3 - marker, 4 - unitate de m\u0103sur\u0103, 5 - notebook\" width=\"320\" height=\"321\" loading=\"lazy\" style=\"max-width:100%;height:auto;\" \/>\n  <figcaption>Fig. 7. Instalarea senzorilor la echilibrarea \u00een dou\u0103 planuri. 1,2 - senzori de vibra\u021bii, 3 - marker, 4 - unitate de m\u0103surare, 5 - laptop.<\/figcaption>\n<\/figure>\n\n<h3 id=\"three-run-method\">Cum se realizeaz\u0103 echilibrarea dinamic\u0103 (metoda \u00een trei etape)<\/h3>\n\n<p>\u00cen majoritatea cazurilor, echilibrarea dinamic\u0103 se realizeaz\u0103 prin metoda celor trei porniri. Metoda se bazeaz\u0103 pe faptul c\u0103 pe rotor se plaseaz\u0103 greut\u0103\u021bi de \u00eencercare cu greutate cunoscut\u0103, \u00een serie, \u00een planul 1 \u0219i 2, iar greut\u0103\u021bile \u0219i amplasarea greut\u0103\u021bilor de echilibrare se calculeaz\u0103 pe baza rezultatelor modific\u0103rilor parametrilor de vibra\u021bie.<\/p>\n<p>Locul de instalare a greut\u0103\u021bilor se nume\u0219te planul de corec\u021bie. De obicei, planurile de corec\u021bie sunt selectate \u00een zona suporturilor de rulmen\u021bi pe care este instalat rotorul.<\/p>\n<p>La prima pornire se m\u0103soar\u0103 vibra\u021bia ini\u021bial\u0103. Apoi, se plaseaz\u0103 o greutate de prob\u0103 cu mas\u0103 cunoscut\u0103 pe rotor, mai aproape de unul dintre lag\u0103re. Se efectueaz\u0103 o a doua pornire \u0219i se m\u0103soar\u0103 parametrii de vibra\u021bie, care ar trebui s\u0103 se modifice ca urmare a instal\u0103rii greut\u0103\u021bii de prob\u0103. Apoi se \u00eendep\u0103rteaz\u0103 greutatea de prob\u0103 din primul plan de corec\u021bie \u0219i se instaleaz\u0103 \u00een al doilea plan de corec\u021bie. Se efectueaz\u0103 o a treia pornire de test \u0219i se m\u0103soar\u0103 parametrii de vibra\u021bie. Se \u00eendep\u0103rteaz\u0103 greutatea de prob\u0103, iar software-ul calculeaz\u0103 automat masele \u0219i unghiurile de instalare a greut\u0103\u021bilor de echilibrare.<\/p>\n<p>Scopul instal\u0103rii greut\u0103\u021bilor de prob\u0103 este de a determina modul \u00een care sistemul reac\u021bioneaz\u0103 la schimb\u0103rile de dezechilibru. Greut\u0103\u021bile \u0219i loca\u021biile greut\u0103\u021bilor de prob\u0103 sunt cunoscute, astfel \u00eenc\u00e2t software-ul poate calcula a\u0219a-numi\u021bii coeficien\u021bi de influen\u021b\u0103, ar\u0103t\u00e2nd modul \u00een care introducerea unui dezechilibru cunoscut afecteaz\u0103 parametrii de vibra\u021bie. Coeficien\u021bii de influen\u021b\u0103 sunt caracteristici ale sistemului mecanic propriu-zis \u0219i depind de rigiditatea suporturilor \u0219i de masa (iner\u021bia) sistemului rotor-suport.<\/p>\n<p>Pentru acela\u0219i tip de mecanisme de acela\u0219i design, coeficien\u021bii de influen\u021b\u0103 vor fi apropia\u021bi. Este posibil\u0103 salvarea acestora \u00een memoria calculatorului \u0219i utilizarea lor pentru echilibrarea mecanismelor de acela\u0219i tip f\u0103r\u0103 rul\u0103ri de prob\u0103, ceea ce cre\u0219te semnificativ productivitatea echilibr\u0103rii. Re\u021bine\u021bi c\u0103 masa greut\u0103\u021bilor de \u00eencercare trebuie aleas\u0103 astfel \u00eenc\u00e2t parametrii de vibra\u021bie s\u0103 se modifice \u00een mod vizibil atunci c\u00e2nd sunt instalate greut\u0103\u021bile de \u00eencercare. \u00cen caz contrar, eroarea de calcul a coeficien\u021bilor de influen\u021b\u0103 cre\u0219te \u0219i calitatea echilibr\u0103rii se deterioreaz\u0103.<\/p>\n<p>Dup\u0103 cum se poate vedea \u00een Fig. 1, for\u021ba centrifug\u0103 ac\u021bioneaz\u0103 \u00een direc\u021bia radial\u0103, adic\u0103 perpendicular pe axa rotorului. Prin urmare, senzorii de vibra\u021bii trebuie instala\u021bi astfel \u00eenc\u00e2t axa lor de sensibilitate s\u0103 fie orientat\u0103 tot \u00een direc\u021bia radial\u0103. De obicei, rigiditatea funda\u021biei \u00een direc\u021bia orizontal\u0103 este mai mic\u0103, astfel \u00eenc\u00e2t vibra\u021bia \u00een direc\u021bia orizontal\u0103 este mai mare. Prin urmare, pentru a cre\u0219te sensibilitatea, senzorii trebuie instala\u021bi astfel \u00eenc\u00e2t axa lor de sensibilitate s\u0103 fie orientat\u0103 \u0219i orizontal. De\u0219i nu exist\u0103 nicio diferen\u021b\u0103 fundamental\u0103. Pe l\u00e2ng\u0103 vibra\u021bia \u00een direc\u021bia radial\u0103, trebuie monitorizat\u0103 \u0219i vibra\u021bia \u00een direc\u021bia axial\u0103, de-a lungul axei de rota\u021bie a rotorului. Aceast\u0103 vibra\u021bie nu este de obicei cauzat\u0103 de dezechilibru, ci de alte cauze, \u00een principal legate de nealinierea arborilor conecta\u021bi prin cuplaj.<\/p>\n<p>Aceast\u0103 vibra\u021bie nu poate fi eliminat\u0103 prin echilibrare, caz \u00een care este necesar\u0103 alinierea. \u00cen practic\u0103, astfel de ma\u0219ini prezint\u0103 de obicei at\u00e2t dezechilibru al rotorului, c\u00e2t \u0219i nealiniere a arborelui, ceea ce face ca sarcina de eliminare a vibra\u021biilor s\u0103 fie mult mai dificil\u0103. \u00cen astfel de cazuri, este necesar\u0103 mai \u00eent\u00e2i centrarea ma\u0219inii \u0219i apoi echilibrarea acesteia. (De\u0219i \u00een cazul unui dezechilibru puternic al cuplului, vibra\u021biile apar \u0219i \u00een direc\u021bia axial\u0103 din cauza \"r\u0103sucirii\" structurii funda\u021biei.)<\/p>\n<h3>Articole similare (exemple de standuri de echilibrare)<\/h3>\n\n<ul>\n<li><a href=\"https:\/\/vibromera.eu\/ro\/exemplu\/suport-de-echilibrare-cu-suport-moale\/\">Stand de echilibrare cu suport moale<\/a><\/li>\n<li><a href=\"https:\/\/vibromera.eu\/ro\/exemplu\/echilibrarea-rotoarelor-motoarelor-electrice\/\">Echilibrarea rotoarelor motoarelor electrice<\/a><\/li>\n<li><a href=\"https:\/\/vibromera.eu\/ro\/exemplu\/simple-dar-eficiente-balansare-standuri-de-echilibrare\/\">Standuri de echilibrare simple, dar eficiente<\/a><\/li>\n<\/ul>\n\n<h2 id=\"quality-criteria\">Criterii pentru evaluarea calit\u0103\u021bii mecanismelor de echilibrare<\/h2>\n<p>Calitatea echilibr\u0103rii rotoarelor (mecanismelor) poate fi evaluat\u0103 \u00een dou\u0103 moduri. Prima metod\u0103 implic\u0103 compararea cantit\u0103\u021bii de dezechilibru rezidual determinate \u00een timpul procesului de echilibrare cu toleran\u021ba pentru dezechilibrul rezidual. Aceste toleran\u021be pentru diferitele clase de rotoare sunt specificate \u00een ISO 21940-11 (anterior ISO 1940-1).<\/p>\n<p>Cu toate acestea, respectarea toleran\u021belor specificate nu poate garanta pe deplin fiabilitatea opera\u021bional\u0103 a mecanismului, asociat\u0103 cu atingerea nivelului minim de vibra\u021bii al acestuia. Acest lucru se explic\u0103 prin faptul c\u0103 amploarea vibra\u021biilor mecanismului este determinat\u0103 nu numai de m\u0103rimea for\u021bei asociate cu dezechilibrul rezidual al rotorului s\u0103u, ci depinde \u0219i de al\u021bi c\u00e2\u021biva parametri, printre care: rigiditatea k a elementelor structurale ale mecanismului, masa m a acestuia, factorul de amortizare, precum \u0219i frecven\u021ba de rota\u021bie. Prin urmare, pentru a estima calit\u0103\u021bile dinamice ale mecanismului (inclusiv calitatea echilibrului s\u0103u), \u00eentr-o serie de cazuri se recomand\u0103 s\u0103 se estimeze nivelul de vibra\u021bii reziduale ale mecanismului, care este reglementat de o serie de standarde.<\/p>\n<p>Cel mai frecvent standard care reglementeaz\u0103 nivelurile admisibile de vibra\u021bii ale mecanismelor este ISO 10816-3-2002. Cu ajutorul acestuia, este posibil s\u0103 se stabileasc\u0103 toleran\u021be pentru orice tip de ma\u0219ini, \u021bin\u00e2nd cont de puterea ac\u021bion\u0103rii electrice a acestora.<\/p>\n<p>\u00cen plus fa\u021b\u0103 de acest standard universal, exist\u0103 o serie de standarde specializate elaborate pentru anumite tipuri de ma\u0219ini. De exemplu, 31350-2007 , ISO 7919-1-2002, etc.<\/p>\n<h2 id=\"standards\">Standarde \u0219i referin\u021be<\/h2>\n\n<ul>\n<li><strong>ISO 1940-1:2007<\/strong>. Vibra\u021bii. Cerin\u021be privind calitatea echilibr\u0103rii rotoarelor rigide. Partea 1. Determinarea dezechilibrului admisibil.<\/li>\n<li><strong>ISO 10816-3:2009<\/strong>. Vibra\u021bii mecanice \u2014 Evaluarea vibra\u021biilor ma\u0219inilor prin m\u0103sur\u0103tori pe piese nerotative \u2014 Partea 3: Ma\u0219ini industriale cu putere nominal\u0103 peste 15 kW \u0219i tura\u021bii nominale \u00eentre 120 r\/min \u0219i 15 000 r\/min atunci c\u00e2nd sunt m\u0103surate in situ.<\/li>\n<li><strong>ISO 14694:2003<\/strong>. Ventilatoare industriale \u2014 Specifica\u021bii privind calitatea echilibr\u0103rii \u0219i nivelurile de vibra\u021bii.<\/li>\n<li><strong>ISO 7919-1:2002<\/strong>. Vibra\u021biile ma\u0219inilor f\u0103r\u0103 mi\u0219care alternativ\u0103 \u2014 M\u0103sur\u0103tori pe arbori rotativi \u0219i criterii de evaluare \u2014 \u00cendrum\u0103ri generale.<\/li>\n<\/ul>\n\n<h2 id=\"faq\">\u00ceNTREB\u0102RI FRECVENTE<\/h2>\n\n<h3>Echilibrarea elimin\u0103 toate vibra\u021biile?<\/h3>\n<p>Nu. Echilibrarea elimin\u0103 vibra\u021biile cauzate de distribu\u021bia asimetric\u0103 a masei rotorului fa\u021b\u0103 de axa sa de rota\u021bie. Vibra\u021biile cauzate de nealiniere, defecte ale rulmen\u021bilor, for\u021be aerodinamice\/hidrodinamice, for\u021be electromagnetice \u0219i alte cauze necesit\u0103 diagnosticare \u0219i ac\u021biuni corective separate.<\/p>\n\n<h3>De ce poate echilibrarea s\u0103 e\u0219ueze \u00een apropierea rezonan\u021bei?<\/h3>\n<p>\u00cen apropierea rezonan\u021bei, micile schimb\u0103ri de vitez\u0103 pot provoca schimb\u0103ri mari \u00een amplitudinea vibra\u021biei \u0219i o defazare de 180\u00b0. \u00cen astfel de condi\u021bii, rezultatele m\u0103sur\u0103torilor devin instabile, iar procedurile conven\u021bionale de echilibrare pot s\u0103 nu converg\u0103 f\u0103r\u0103 metode speciale.<\/p>\n\n<h3>C\u00e2nd ave\u021bi nevoie de echilibrare pe un plan fa\u021b\u0103 de pe dou\u0103 planuri?<\/h3>\n<p>Pentru un rotor rigid, dou\u0103 greut\u0103\u021bi separate de-a lungul lungimii rotorului sunt \u00een general necesare \u0219i suficiente pentru a elimina dezechilibrul static \u0219i dinamic combinat. Rotoarele \u00eenguste prezint\u0103 adesea \u00een mare parte un dezechilibru static, dar deformarea \u0219i geometria pot introduce o component\u0103 dinamic\u0103 care poate necesita corec\u021bie pe dou\u0103 planuri.<\/p>\n\n<h3>Ce trebuie f\u0103cut \u00eenainte de echilibrare?<\/h3>\n<p>Asigura\u021bi-v\u0103 c\u0103 ma\u0219ina este \u00een stare de func\u021bionare: montare fiabil\u0103 pe funda\u021bie, rulmen\u021bi s\u0103n\u0103to\u0219i, f\u0103r\u0103 sl\u0103biri severe \u0219i f\u0103r\u0103 surse evidente de neliniaritate. Echilibrarea nu \u00eenlocuie\u0219te repara\u021bia.<\/p>\n\n<h2>Concluzii cheie<\/h2>\n\n<ul>\n<li>Echilibrarea corecteaz\u0103 excita\u021bia legat\u0103 de mas\u0103 (centrifug\u0103); nu rezolv\u0103 nealinierea, deteriorarea rulmen\u021bilor sau sursele electromagnetice\/aerodinamice.<\/li>\n<li>Rezonan\u021ba \u0219i neliniaritatea pot face ca echilibrarea conven\u021bional\u0103 s\u0103 fie ineficient\u0103 sau nesigur\u0103.<\/li>\n<li>Pentru rotoarele rigide, echilibrarea pe dou\u0103 planuri este solu\u021bia general\u0103 pentru dezechilibrul combinat static + dinamic.<\/li>\n<\/ul>\n\n<div class=\"rb-video\">\n  <iframe\n    src=\"https:\/\/www.youtube-nocookie.com\/embed\/guA6XJ-ArZM\"\n    title=\"Lectorul video YouTube\"\n    allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\"\n    allowfullscreen><\/iframe>\n<\/div>\n<\/section>\n\n<\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Rotor balancing: static and dynamic unbalance, resonance, and practical procedure This guide explains rotor balancing for rigid rotors: what \u201cunbalance\u201d means, how static and dynamic unbalance differ, why resonance and non-linearity can prevent a quality result, and how balancing is typically performed in one or two correction planes. Devices Portable [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":3695,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ai_generated_summary":"","footnotes":""},"categories":[54,8,4,10,7,9,5],"tags":[],"class_list":["post-2253","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-content","category-crushers","category-example","category-impellers","category-mulchers","category-rotors","category-solutions"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/posts\/2253","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/comments?post=2253"}],"version-history":[{"count":3,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/posts\/2253\/revisions"}],"predecessor-version":[{"id":102213,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/posts\/2253\/revisions\/102213"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/media\/3695"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/media?parent=2253"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/categories?post=2253"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/tags?post=2253"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}