{"id":252,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/startup-vibration\/"},"modified":"2026-05-23T22:54:15","modified_gmt":"2026-05-23T22:54:15","slug":"startup-vibration","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/ro\/glossary\/startup-vibration\/","title":{"rendered":"Ce este vibra\u021bia la pornire? Analiza tranzitorie"},"content":{"rendered":"<h1>\u00cen\u021belegerea vibra\u021biilor de pornire \u00een ma\u0219inile rotative<\/h1>\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\/glossary\/252?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\/glossary\/252?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\/glossary\/252?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\/glossary\/252?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\/glossary\/252?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\/glossary\/252?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\/glossary\/252?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\/glossary\/252?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\/glossary\/252?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\/glossary\/252?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\/glossary\/252?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\/glossary\/252?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\/glossary\/252?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\/glossary\/252?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<p><strong>Vibra\u021bii la pornire<\/strong> describes the <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/vibration\/\">vibra\u021bii<\/a> comportamentul ma\u0219inilor rotative \u00een timpul acceler\u0103rii de la repaus p\u00e2n\u0103 la viteza normal\u0103 de func\u021bionare. Acesta acoper\u0103 at\u00e2t <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/transient-vibration\/\">vibra\u021bii tranzitorii<\/a> pe m\u0103sur\u0103 ce ma\u0219ina trece prin <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/critical-speed\/\">viteze critice<\/a> \u0219i orice fenomene anormale specifice fazei de pornire \u2014 <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/thermal-bow\/\">arc termic<\/a>, instabilit\u0103\u021bi ale rulmen\u021bilor, <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/rotor-rub\/\">frecare<\/a>, sau a stabiliz\u0103rii mecanice. Monitorizarea este important\u0103 deoarece multe probleme legate de vibra\u021bii se manifest\u0103 cel mai clar \u00een timpul pornirii, iar faza tranzitorie de pornire reprezint\u0103 adesea momentul cu cea mai mare solicitare mecanic\u0103 din \u00eentregul ciclu de func\u021bionare al unei ma\u0219ini.<\/p>\n<h2>1. Defini\u021bie: De ce fenomenul tranzitoriu de pornire este special<\/h2>\n<p>Monitorizarea \u00een regim sta\u021bionar \u00eenregistreaz\u0103 func\u021bionarea unei ma\u0219ini la o vitez\u0103 fix\u0103, \u00een timp ce o pornire face ca rotorul s\u0103 parcurg\u0103 \u00eentreaga gam\u0103 de viteze \u2014 activ\u00e2nd fiecare <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/natural-frequency\/\">frecven\u021b\u0103 natural\u0103<\/a> care se afl\u0103 sub viteza de func\u021bionare pe parcursul urc\u0103rii. Fiecare trecere prin <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/resonance\/\">rezonan\u021b\u0103<\/a> amplific\u0103 temporar r\u0103spunsul, iar rotorul este simultan rece, se \u00eenc\u0103lze\u0219te inegal \u0219i se a\u0219eaz\u0103 pe lag\u0103re. Aceast\u0103 combina\u021bie face ca faza de pornire s\u0103 fie o fereastr\u0103 deosebit de revelatoare \u2014 \u0219i deosebit de solicitant\u0103 \u2014 asupra st\u0103rii de func\u021bionare a ma\u0219inii, motiv pentru care sistemele dedicate <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/run-up-analysis\/\">analiza la pornire<\/a> este un instrument standard pentru echipamentele critice.<\/p>\n<h2>2. Caracteristicile tipice ale vibra\u021biilor la pornire<\/h2>\n<h3>Desf\u0103\u0219urarea normal\u0103 a procesului de pornire<\/h3>\n<p>La o ma\u0219in\u0103 \u00een stare bun\u0103, vibra\u021biile din timpul pornirii urmeaz\u0103 un tipar previzibil pe care analistul \u00eel poate folosi ca punct de referin\u021b\u0103.<\/p>\n<h4>Faza ini\u021bial\u0103 (0\u201320 % din vitez\u0103)<\/h4>\n<ul>\n<li>Vibra\u021bii foarte sc\u0103zute de la <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/unbalance\/\">dezechilibru<\/a>, deoarece for\u021ba centrifug\u0103 cre\u0219te propor\u021bional cu p\u0103tratul vitezei.<\/li>\n<li>Orice vibra\u021bie semnificativ\u0103 \u00een acest moment indic\u0103 o problem\u0103 mecanic\u0103 sau o deformare termic\u0103.<\/li>\n<li>M\u0103surarea la tura\u021bie redus\u0103 ofer\u0103 o valoare de referin\u021b\u0103 a st\u0103rii pur mecanice a rotorului (de exemplu, curbur\u0103 rezidual\u0103 sau excentricitate).<\/li>\n<\/ul>\n<h4>Accelerare prin viteze critice<\/h4>\n<ul>\n<li>Amplitudinea cre\u0219te pe m\u0103sur\u0103 ce se apropie fiecare vitez\u0103 critic\u0103.<\/li>\n<li>Atinge valoarea maxim\u0103 la viteza critic\u0103, c\u00e2nd rotorul se afl\u0103 \u00een rezonan\u021b\u0103.<\/li>\n<li>Scade rapid pe m\u0103sur\u0103 ce viteza dep\u0103\u0219e\u0219te pragul critic.<\/li>\n<li>Aproximativ 180\u00b0 <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/phase\/\">faz\u0103<\/a> schimbarea \u00eenso\u021be\u0219te trecerea prin fiecare vitez\u0103 critic\u0103 \u2014 o tr\u0103s\u0103tur\u0103 distinctiv\u0103.<\/li>\n<li>Se observ\u0103 mai multe v\u00e2rfuri dac\u0103 mai multe viteze critice se situeaz\u0103 sub viteza de func\u021bionare.<\/li>\n<\/ul>\n<h4>Atingerea vitezei de func\u021bionare<\/h4>\n<ul>\n<li>Vibra\u021biile se stabilizeaz\u0103 la un nivel constant.<\/li>\n<li>Este dominat de componenta 1\u00d7 din <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/residual-unbalance\/\">dezechilibru rezidual<\/a>.<\/li>\n<li>Stabilizarea termic\u0103 poate determina modific\u0103ri treptate \u00een primele 30\u201360 de minute de func\u021bionare.<\/li>\n<\/ul>\n<h2>3. Probleme frecvente legate de vibra\u021biile la pornire<\/h2>\n<h3>\u00cencovoiere termic\u0103<\/h3>\n<p>Curbura termic\u0103 este cea mai frecvent\u0103 problem\u0103 specific\u0103 fazei de pornire:<\/p>\n<ul>\n<li><strong>Simptom:<\/strong> vibra\u021bii puternice \u00een timpul acceler\u0103rii ini\u021biale, care se reduc treptat pe m\u0103sur\u0103 ce utilajul se \u00eenc\u0103lze\u0219te.<\/li>\n<li><strong>Cauza:<\/strong> \u00eenc\u0103lzirea asimetric\u0103, care determin\u0103 o curbur\u0103 temporar\u0103 a arborelui.<\/li>\n<li><strong>Frecven\u0163\u0103:<\/strong> 1\u00d7 sincron.<\/li>\n<li><strong>Behaviour:<\/strong> r\u0103m\u00e2ne ridicat\u0103 chiar \u0219i la viteze mici de rulare, sc\u0103z\u00e2nd apoi pe m\u0103sur\u0103 ce se atinge echilibrul termic.<\/li>\n<li><strong>Solu\u021bie:<\/strong> proceduri de \u00eenc\u0103lzire prelungite \u0219i ac\u021bionarea mecanismului de rotire \u00eenainte de pornire.<\/li>\n<\/ul>\n<h3>Vibra\u021bii excesive la viteza critic\u0103<\/h3>\n<ul>\n<li><strong>Simptom:<\/strong> v\u00e2rfuri foarte mari la dep\u0103\u0219irea unei viteze critice.<\/li>\n<li><strong>Cauze:<\/strong> poor <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/damping\/\">amortizare<\/a>, un dezechilibru ridicat sau func\u021bionarea la o vitez\u0103 prea apropiat\u0103 de cea critic\u0103.<\/li>\n<li><strong>Risc:<\/strong> posibile deterior\u0103ri ale rulmen\u021bilor \u0219i garniturilor la fiecare pornire.<\/li>\n<li><strong>Solu\u021bie:<\/strong> \u00eembun\u0103t\u0103\u021besc echilibrul, sporesc rata de accelera\u021bie \u00een zonele critice \u0219i asigur\u0103 o mai bun\u0103 amortizare.<\/li>\n<\/ul>\n<h3>Frecare \u00een timpul acceler\u0103rii<\/h3>\n<ul>\n<li><strong>Simptom:<\/strong> vibra\u021bii bru\u0219te \u0219i neregulate \u0219i apari\u021bia <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/sub-synchronous\/\">subsincron<\/a> components.<\/li>\n<li><strong>Cauza:<\/strong> distan\u021be insuficiente sau vibra\u021bii excesive la viteza critic\u0103 care determin\u0103 contactul rotorului.<\/li>\n<li><strong>Risc:<\/strong> deterior\u0103ri termice localizate \u0219i distrugerea garniturii.<\/li>\n<li><strong>Solu\u021bie:<\/strong> verifica\u021bi distan\u021bele de siguran\u021b\u0103, \u00eembun\u0103t\u0103\u021bi\u021bi echilibrul \u0219i reduce\u021bi viteza de accelerare.<\/li>\n<\/ul>\n<h3>Instabilitatea rulmentului la pornire<\/h3>\n<ul>\n<li><strong>Simptom:<\/strong> vibra\u021bie subsincron\u0103 care apare \u00een timpul acceler\u0103rii, adesea \u00een apropierea jum\u0103t\u0103\u021bii vitezei de mers.<\/li>\n<li><strong>Cauza:<\/strong> o <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/journal-bearing\/\">lag\u0103r cu alunecare<\/a> nu a atins \u00eenc\u0103 temperatura de func\u021bionare, astfel \u00eenc\u00e2t rigiditatea peliculei de ulei \u0219i capacitatea de amortizare nu sunt \u00eenc\u0103 optime \u2014 un semn prevestitor al <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/oil-whirl\/\">v\u00e2rtej de ulei<\/a>.<\/li>\n<li><strong>Behaviour:<\/strong> poate disp\u0103rea odat\u0103 ce rulmentul se \u00eenc\u0103lze\u0219te.<\/li>\n<li><strong>Solu\u021bie:<\/strong> \u00cenc\u0103lzire prelungit\u0103 la vitez\u0103 intermediar\u0103 \u00eenainte de accelerarea complet\u0103<\/li>\n<\/ul>\n<h2>4. Elaborarea procedurii de pornire<\/h2>\n<h3>Optimizarea ratei de accelerare<\/h3>\n<p>Profilul de accelerare ar trebui adaptat la dinamica specific\u0103 a ma\u0219inii, \u00een loc s\u0103 fie aplicat \u00een mod uniform.<\/p>\n<h4>Zone de accelerare lent\u0103<\/h4>\n<ul>\n<li><strong>Rulaj ini\u021bial (0\u201310 % din vitez\u0103):<\/strong> foarte lent, pentru a detecta deform\u0103ri termice sau probleme mecanice.<\/li>\n<li><strong>Sub prima vitez\u0103 critic\u0103:<\/strong> o vitez\u0103 moderat\u0103, pentru a permite \u00eenc\u0103lzirea termic\u0103.<\/li>\n<li><strong>Deasupra tuturor vitezelor critice:<\/strong> accelera\u021bia p\u00e2n\u0103 la viteza de mers poate fi mai rapid\u0103.<\/li>\n<\/ul>\n<h4>Zone de trecere rapid\u0103<\/h4>\n<ul>\n<li><strong>Intervale de vitez\u0103 critic\u0103:<\/strong> s\u0103 accelereze rapid prin intervalul de aproximativ \u00b115\u201320% din jurul fiec\u0103rei viteze critice.<\/li>\n<li><strong>Rat\u0103 tipic\u0103:<\/strong> de 2\u20135 ori mai mare dec\u00e2t accelera\u021bia normal\u0103.<\/li>\n<li><strong>Scop:<\/strong> s\u0103 reduc\u0103 la minimum timpul de sta\u021bionare la rezonan\u021b\u0103 \u0219i s\u0103 limiteze cre\u0219terea amplitudinii vibra\u021biilor.<\/li>\n<\/ul>\n<h4>Puncte de men\u021binere<\/h4>\n<ul>\n<li><strong>Viteze de men\u021binere la temperatur\u0103:<\/strong> s\u0103 se men\u021bin\u0103 la 30 %, 50 % \u0219i 70 % pentru turbinele de mare capacitate.<\/li>\n<li><strong>Durat\u0103:<\/strong> 10\u201330 de minute la fiecare men\u021binere.<\/li>\n<li><strong>Scop:<\/strong> permit stabilizarea termic\u0103 \u0219i reduc gradientele termice.<\/li>\n<li><strong>Verificarea vibra\u021biilor:<\/strong> Asigura\u021bi-v\u0103 c\u0103 vibra\u021biile sunt acceptabile \u00eenainte de a continua.<\/li>\n<\/ul>\n<h2>5. Monitorizarea \u0219i criteriile de acceptare<\/h2>\n<h3>Monitorizare \u00een timp real<\/h3>\n<p>\u00cen timpul pornirii, fi\u021bi atent la:<\/p>\n<ul>\n<li><strong>Nivelul general de vibra\u021bii:<\/strong> nu ar trebui s\u0103 dep\u0103\u0219easc\u0103 <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/alarm-level\/\">alarm limit<\/a> at any speed.<\/li>\n<li><strong>Temperaturile rulmen\u021bilor:<\/strong> o cre\u0219tere treptat\u0103 este acceptabil\u0103; o cre\u0219tere rapid\u0103 indic\u0103 probleme.<\/li>\n<li><strong>Urm\u0103rire vitez\u0103:<\/strong> Asigura\u021bi-v\u0103 c\u0103 utilajul accelereaz\u0103 lin.<\/li>\n<li><strong>Unghi de faz\u0103:<\/strong> verifica\u021bi-l pentru a depista eventualele modific\u0103ri nea\u0219teptate care ar putea indica probleme mecanice.<\/li>\n<\/ul>\n<h3>Criterii de acceptare<\/h3>\n<ul>\n<li><strong>V\u00e2rfuri la vitezele critice:<\/strong> ar trebui s\u0103 se \u00eencadreze \u00een limitele de \u00b110\u201315% fa\u021b\u0103 de previziuni.<\/li>\n<li><strong>Amplitudini maxime:<\/strong> ar trebui s\u0103 se \u00eencadreze \u00een limitele de proiectare, definite de obicei \u00een specifica\u021biile echipamentului \u0219i comparate cu <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/iso-20816-1\/\">ISO 20816<\/a> orient\u0103ri privind severitatea vibra\u021biilor.<\/li>\n<li><strong>Vibra\u021bii \u00een regim sta\u021bionar:<\/strong> ar trebui s\u0103 se stabilizeze la niveluri acceptabile dup\u0103 stabilizarea termic\u0103.<\/li>\n<li><strong>Repetabilitate:<\/strong> pornirile succesive ar trebui s\u0103 aib\u0103 un comportament consecvent.<\/li>\n<\/ul>\n<h2>6. Remedierea vibra\u021biilor anormale la pornire<\/h2>\n<h3>Vibra\u021bii ini\u021biale ridicate<\/h3>\n<p>Cauze posibile:<\/p>\n<ul>\n<li>Deformare termic\u0103 r\u0103mas\u0103 \u00een urma unei rul\u0103ri anterioare sau a unei opriri.<\/li>\n<li>O \u00eencovoiere mecanic\u0103 sau <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/bent-shaft\/\">arbore \u00eendoit<\/a>.<\/li>\n<li>Probleme cu rulmen\u021bii \u2014 <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/bearing-wear\/\">uzur\u0103<\/a> sau <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/misalignment\/\">nealiniere<\/a>.<\/li>\n<li><a href=\"https:\/\/vibromera.eu\/ro\/glossary\/looseness\/\">Joc mecanic<\/a> sau alte defecte mecanice.<\/li>\n<\/ul>\n<h3>Cre\u0219terea vibra\u021biilor \u00een timpul \u00eenc\u0103lzirii<\/h3>\n<p>Cauze posibile:<\/p>\n<ul>\n<li>O deformare termic\u0103 \u00een curs de formare ca urmare a \u00eenc\u0103lzirii asimetrice.<\/li>\n<li>Dilatarea termic\u0103 perturb\u0103 alinierea.<\/li>\n<li>Jocurile rulmen\u021bilor variaz\u0103 \u00een func\u021bie de temperatur\u0103.<\/li>\n<li>Jocuri de \u00eenchidere prin dilatare termic\u0103 care duc la frecare<\/li>\n<\/ul>\n<h3>Vibra\u021bii neregulate \u00een timpul acceler\u0103rii<\/h3>\n<p>Cauze posibile:<\/p>\n<ul>\n<li>Frecare sau contact intermitent.<\/li>\n<li>Deplasarea sau mi\u0219carea componentelor libere.<\/li>\n<li><a href=\"https:\/\/vibromera.eu\/ro\/glossary\/coupling-defects\/\">Cuplaj<\/a> probleme.<\/li>\n<li>Comportament variabil al rulmentului.<\/li>\n<\/ul>\n<h2>7. Documenta\u021bie \u0219i date de referin\u021b\u0103<\/h2>\n<h3>Punere \u00een func\u021biune ini\u021bial\u0103<\/h3>\n<p>Stabili\u021bi o semn\u0103tur\u0103 ini\u021bial\u0103 de pornire:<\/p>\n<ul>\n<li>\u00cenregistra\u021bi toate datele referitoare la faza de accelerare.<\/li>\n<li>Generare <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/bode-plot\/\">Diagrame Bode<\/a> \u0219i <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/waterfall-plot\/\">diagrame \u00een cascad\u0103<\/a>.<\/li>\n<li>\u00cenregistra\u021bi fiecare vitez\u0103 critic\u0103 \u0219i amplitudinea maxim\u0103 a acesteia.<\/li>\n<li>P\u0103stra\u021bi-l ca referin\u021b\u0103 pentru toate compara\u021biile viitoare.<\/li>\n<\/ul>\n<h3>Compara\u021bie periodic\u0103<\/h3>\n<ul>\n<li>Compara\u021bi fiecare pornire actual\u0103 cu valoarea de referin\u021b\u0103.<\/li>\n<li>Fi\u021bi atent la modific\u0103rile pozi\u021biilor vitezelor critice, care indic\u0103 schimb\u0103ri mecanice, cum ar fi apari\u021bia unei fisuri sau modificarea rigidit\u0103\u021bii elementelor de sus\u021binere.<\/li>\n<li>Urm\u0103ri\u021bi varia\u021biile amplitudinii de v\u00e2rf, care indic\u0103 dezechilibre sau modific\u0103ri ale amortiz\u0103rii.<\/li>\n<li>C\u0103uta\u021bi componente de vibra\u021bie noi care nu sunt prezente \u00een valoarea de referin\u021b\u0103.<\/li>\n<\/ul>\n<p>Pentru a \u00eenregistra o faz\u0103 de accelerare f\u0103r\u0103 erori, este necesar\u0103 \u00eenregistrarea continu\u0103 a amplitudinii, fazei \u0219i vitezei pe m\u0103sur\u0103 ce rotorul accelereaz\u0103 \u2014 exact tipul de m\u0103surare sincronizat\u0103 pentru care a fost conceput un analizor portabil cu dou\u0103 canale. <a href=\"https:\/\/vibromera.eu\/ro\/produs\/balanset-1\/\">Balanset-1A<\/a> \u00eenregistreaz\u0103 amplitudinea \u0219i faza de 1\u00d7 \u00een func\u021bie de tura\u021bia arborelui \u00een timpul pornirii, astfel \u00eenc\u00e2t un tehnician s\u0103 poat\u0103 identifica tura\u021biile critice, s\u0103 confirme inversarea de faz\u0103 de 180\u00b0 la fiecare dintre acestea \u0219i \u2014 atunci c\u00e2nd problema const\u0103 \u00eentr-un dezechilibru de 1\u00d7 sau \u00eentr-o deformare termic\u0103, mai degrab\u0103 dec\u00e2t \u00eentr-o defec\u021biune structural\u0103 \u2014 s\u0103 echilibreze rotorul \u00een propriile sale lag\u0103re \u0219i s\u0103 reporneasc\u0103 sistemul pentru a verifica dac\u0103 v\u00e2rfurile de la pornire au sc\u0103zut. Pentru a anticipa unde ar trebui s\u0103 se situeze aceste v\u00e2rfuri, un <a href=\"https:\/\/vibromera.eu\/ro\/calculators\/rotor-critical-speed\/\">calculator pentru viteza critic\u0103 a rotorului<\/a> estimeaz\u0103 frecven\u021ba natural\u0103 a arborelui, \u00een timp ce un <a href=\"https:\/\/vibromera.eu\/ro\/calculators\/rotor-acceleration-time\/\">calculator accelera\u021bie-timp pentru rotor<\/a> ajut\u0103 la stabilirea vitezei cu care unitatea poate traversa o zon\u0103 de rezonan\u021b\u0103.<\/p>\n<p>Analiza vibra\u021biilor la pornire ofer\u0103 o imagine a st\u0103rii de func\u021bionare a utilajului pe care monitorizarea \u00een regim sta\u021bionar nu o poate furniza. Deoarece numeroase defec\u021biuni \u00een curs de dezvoltare se manifest\u0103 pentru prima dat\u0103 \u00een timpul acceler\u0103rii, urm\u0103rirea evolu\u021biei semn\u0103turii vibra\u021biilor la pornire \u00een timp reprezint\u0103 unul dintre cele mai valoroase instrumente de \u00eentre\u021binere predictiv\u0103 disponibile pentru echipamentele rotative critice.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/ro\/glossary\/\">\u2190 \u00cenapoi la indexul principal<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Afla\u021bi despre vibra\u021biile la pornire, comportamentul caracteristic al vibra\u021biilor \u00een timpul acceler\u0103rii ma\u0219inii, inclusiv efectele de curbur\u0103 termic\u0103, pasajele de vitez\u0103 critic\u0103 \u0219i fenomenele tranzitorii.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[114,109],"tags":[],"class_list":["post-252","glossary","type-glossary","status-publish","hentry","category-analysis","category-glossary"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/glossary\/252","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/glossary\/252\/revisions"}],"predecessor-version":[{"id":101411,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/glossary\/252\/revisions\/101411"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/media?parent=252"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/categories?post=252"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/tags?post=252"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}