{"id":274,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/torsional-analysis\/"},"modified":"2026-05-23T22:39:51","modified_gmt":"2026-05-23T22:39:51","slug":"torsional-analysis","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/ro\/glossary\/torsional-analysis\/","title":{"rendered":"Ce este analiza torsional\u0103? Evaluarea vibra\u021biilor de r\u0103sucire"},"content":{"rendered":"<h1>\u00cen\u021belegerea analizei torsionale<\/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\/274?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\/274?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\/274?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\/274?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\/274?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\/274?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\/274?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\/274?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\/274?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\/274?add-to-cart=1852\" 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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\/274?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\/274?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\/274?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\/274?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>Analiza torsional\u0103<\/strong> este m\u0103surarea, evaluarea \u0219i modelarea <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/torsional-vibration\/\">vibra\u021bii torsionale<\/a> \u2014 oscila\u021bii de torsiune \u00een jurul axei arborelui \u2014 \u00een lan\u021burile de transmisie ale ma\u0219inilor rotative. Spre deosebire de <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/lateral-vibration\/\">vibra\u021bii laterale<\/a> (\u00eendoire), care este citit\u0103 direct de standard <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/accelerometer\/\">accelerometre<\/a> fixat\u0103 pe o carcas\u0103 de rulment, mi\u0219carea de torsiune nu produce nicio deplasare lateral\u0103 \u0219i, prin urmare, este invizibil\u0103 pentru senzorii obi\u0219nui\u021bi <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/vibration-analysis\/\">analiza vibra\u021biilor<\/a>. Detectarea acestuia necesit\u0103 tehnici specializate \u2014 extensometre, tahometre duale sau laser <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/laser-vibrometry\/\">vibrometry<\/a> \u2014 \u00eempreun\u0103 cu o analiz\u0103 pentru determinarea frecven\u021belor proprii de torsiune \u0219i evaluarea <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/fatigue\/\">oboseal\u0103<\/a> riscul asociat arborilor, cuplajelor \u0219i angrenajelor.<\/p>\n<p>Aceast\u0103 disciplin\u0103 este esen\u021bial\u0103 pentru sistemele de ac\u021bionare cu motoare cu piston, arbori de transmisie lungi, cutii de viteze de mare putere \u0219i sisteme de ac\u021bionare cu motor cu frecven\u021b\u0103 variabil\u0103 (VFD), \u00een care vibra\u021biile torsionale pot provoca defect\u0103ri bru\u0219te \u0219i catastrofale ale arborelui sau cuplajului, chiar \u0219i \u00een cazul \u00een care for\u021bele laterale <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/vibration-severity\/\">intensitatea vibra\u021biilor<\/a> pare perfect acceptabil. Este o capacitate specializat\u0103, dar esen\u021bial\u0103 pentru prevenirea acelui tip de defec\u021biuni nea\u0219teptate pe care monitorizarea obi\u0219nuit\u0103 nu le poate anticipa.<\/p>\n<h2>1. De ce este necesar\u0103 analiza la torsiune<\/h2>\n<h3>Vibra\u021bii de torsiune versus vibra\u021bii laterale<\/h3>\n<p>Cele dou\u0103 mi\u0219c\u0103ri sunt independente din punct de vedere mecanic, iar aceast\u0103 independen\u021b\u0103 constituie motivul pentru care exist\u0103 o disciplin\u0103 distinct\u0103:<\/p>\n<ul>\n<li><strong>Lateral:<\/strong> deformarea \u0219i mi\u0219carea lateral\u0103 a arborelui \u0219i a rulmen\u021bilor \u2014 u\u0219or de \u00eenregistrat cu un accelerometru standard sau <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/proximity-probe\/\">sond\u0103 de proximitate<\/a>.<\/li>\n<li><strong>De torsiune:<\/strong> r\u0103sucindu-se \u00een jurul axei de rota\u021bie, f\u0103r\u0103 nicio deplasare lateral\u0103 detectabil\u0103, ceea ce \u00eel face invizibil pentru senzorii monta\u021bi \u00een mod conven\u021bional.<\/li>\n<li><strong>Independen\u0163\u0103:<\/strong> o ma\u0219in\u0103 poate fi supus\u0103 unor vibra\u021bii de torsiune puternice, chiar dac\u0103 nivelurile de vibra\u021bii laterale sunt sc\u0103zute, \u0219i invers \u2014 cele dou\u0103 nu sunt corelate.<\/li>\n<li><strong>Daune:<\/strong> Vibra\u021biile torsionale pot provoca ruperea arborilor \u0219i a cuplajelor f\u0103r\u0103 ca m\u0103sur\u0103torile laterale s\u0103 dea vreun semn de avertizare, tocmai de aceea sunt at\u00e2t de periculoase.<\/li>\n<\/ul>\n<h3>Moduri caracteristice de defectare<\/h3>\n<p>Deoarece excita\u021bia torsional\u0103 exercit\u0103 o solicitare ciclic\u0103 de forfecare asupra liniei de transmisie, defectele acesteia prezint\u0103 o semn\u0103tur\u0103 caracteristic\u0103:<\/p>\n<ul>\n<li><strong>Fracturi de oboseal\u0103 ale arborelui:<\/strong> de obicei, o rupere net\u0103, orientat\u0103 la aproximativ 45\u00b0 fa\u021b\u0103 de axa arborelui, planul de tensiune maxim\u0103 de forfecare.<\/li>\n<li><strong>Defec\u021biunea elementului de cuplare:<\/strong> din\u021bii fisura\u021bi ai angrenajelor \u00een cuplajele cu angrenaje sau elementele flexibile rupte \u00een cuplajele elastomerice \u0219i cu discuri.<\/li>\n<li><strong>Ruptura din\u021bilor angrenajului:<\/strong> determinat\u0103 mai degrab\u0103 de sarcini oscilante \u0219i variabile exercitate asupra din\u021bilor dec\u00e2t de un cuplu constant.<\/li>\n<li><strong>Deteriorarea penei \u0219i a canalului de pan\u0103:<\/strong> uzarea \u0219i sl\u0103birea, pe m\u0103sur\u0103 ce \u00eembinarea este supus\u0103 unei mi\u0219c\u0103ri de va-\u0219i-vino prin r\u0103sucirea alternativ\u0103.<\/li>\n<\/ul>\n<h2>2. Tehnici de m\u0103surare<\/h2>\n<p>Deoarece nu exist\u0103 o suprafa\u021b\u0103 convenabil\u0103 c\u0103tre care s\u0103 se poat\u0103 \u00eendrepta un senzor, au ap\u0103rut patru metode practice, care fac un compromis \u00eentre precizie, cost \u0219i gama de frecven\u021be.<\/p>\n<h3>Metoda cu extensometre<\/h3>\n<p>Cea mai direct\u0103 metod\u0103 \u2014 m\u0103surarea tensiunii de torsiune la surs\u0103:<\/p>\n<ul>\n<li>Extensometrele sunt fixate la un unghi de 45\u00b0 fa\u021b\u0103 de axa arborelui, orientare care permite \u00eenregistrarea tensiunii de forfecare maxime.<\/li>\n<li>Acestea m\u0103soar\u0103 deforma\u021bia de forfecare generat\u0103 de r\u0103sucire, care se transform\u0103 direct \u00een cuplu \u0219i tensiune alternativ\u0103.<\/li>\n<li>Un arbore rotativ necesit\u0103 fie inele colectoare, fie o conexiune f\u0103r\u0103 fir <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/telemetry\/\">telemetrie<\/a> pentru a capta semnalul de la elementul rotativ.<\/li>\n<li>Este cea mai precis\u0103 metod\u0103, dar \u0219i cea mai complex\u0103 \u0219i mai costisitoare, a\u0219a c\u0103 este utilizat\u0103 \u00een principal \u00een activit\u0103\u021bile de cercetare \u0219i dezvoltare.<\/li>\n<\/ul>\n<h3>Metoda cu tahometru dublu<\/h3>\n<ul>\n<li>Doi senzori optici \u2014 de obicei doi <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/laser-tachometer\/\">tahometre laser<\/a> \u2014 sunt orientate c\u0103tre diferite puncte de pe ax.<\/li>\n<li>Instrumentul m\u0103soar\u0103 valoarea instantanee <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/phase\/\">faz\u0103<\/a> diferen\u021ba dintre cele dou\u0103 sta\u021bii.<\/li>\n<li>Aceast\u0103 diferen\u021b\u0103 de faz\u0103 reprezint\u0103 r\u0103sucirea unghiular\u0103 a arborelui \u00eentre ele, care constituie \u00eens\u0103\u0219i vibra\u021bia de torsiune.<\/li>\n<li>Este o metod\u0103 f\u0103r\u0103 contact \u0219i cu adev\u0103rat practic\u0103 \u00een teren, dar de obicei limitat\u0103 la con\u021binutul torsional de joas\u0103 frecven\u021b\u0103, sub aproximativ 100 Hz.<\/li>\n<\/ul>\n<h3>Vibrometru torsional cu laser<\/h3>\n<ul>\n<li>Un sistem laser Doppler specializat, orientat c\u0103tre suprafa\u021ba arborelui.<\/li>\n<li>M\u0103soar\u0103 direct fluctua\u021biile vitezei unghiulare, f\u0103r\u0103 a fi necesar\u0103 preg\u0103tirea arborelui.<\/li>\n<li>F\u0103r\u0103 contact, cu o gam\u0103 larg\u0103 de frecven\u021be de utilizare.<\/li>\n<li>Echipamente performante, dar costisitoare, destinate investiga\u021biilor complexe.<\/li>\n<\/ul>\n<h3>Analiza curentului motorului<\/h3>\n<ul>\n<li>Vibra\u021biile de torsiune ale unui tren ac\u021bionat de un motor moduleaz\u0103 sarcina \u0219i, prin urmare, genereaz\u0103 mici fluctua\u021bii ale curentului motorului.<\/li>\n<li>Analiza curentului motorului <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/spectrum\/\">spectru<\/a> eviden\u021biaz\u0103 aceste fluctua\u021bii \u00een mod indirect.<\/li>\n<li>Este o procedur\u0103 complet neinvaziv\u0103 \u2014 niciun senzor nu se apropie deloc de ax.<\/li>\n<li>Este recomandat s\u0103 fie considerat un instrument de screening care semnaleaz\u0103 o problem\u0103 ce merit\u0103 confirmat\u0103 printr-o metod\u0103 direct\u0103.<\/li>\n<\/ul>\n<h2>3. Analiza torsional\u0103<\/h2>\n<p>M\u0103surarea \u00ee\u021bi arat\u0103 ce face o ma\u0219in\u0103 \u00een momentul de fa\u021b\u0103; modelarea \u00ee\u021bi arat\u0103 ce va face pe \u00eentreaga sa gam\u0103 de viteze \u0219i le permite inginerilor s\u0103 previn\u0103 apari\u021bia problemelor \u00eenainte ca metalul s\u0103 fie t\u0103iat.<\/p>\n<h3>Modelare matematic\u0103<\/h3>\n<ul>\n<li>Sistemul de transmisie este redus la un model torsional cu mase concentrate \u2014 discuri de iner\u021bie conectate prin arcuri torsionale (sec\u021biunile arborelui \u0219i cuplajele).<\/li>\n<li>Pe baza acestuia, se calculeaz\u0103 frecven\u021bele naturale de torsiune.<\/li>\n<li>Modelul prezice r\u0103spunsul la fiecare surs\u0103 de excita\u021bie \u0219i identific\u0103 torsiunea <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/critical-speed\/\">viteze critice<\/a> \u0219i <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/resonance\/\">rezonan\u021be<\/a>.<\/li>\n<\/ul>\n<h3>Surse de excita\u021bie<\/h3>\n<p>Rezonan\u021bele torsionale devin periculoase doar atunci c\u00e2nd un factor le exciteaz\u0103 la frecven\u021ba potrivit\u0103. Cele mai frecvente cauze sunt:<\/p>\n<ul>\n<li><strong>Motoare cu piston:<\/strong> Impulsurile de aprindere provenite de la fiecare cilindru genereaz\u0103 o puternic\u0103 excita\u021bie torsional\u0103 la ordinele motorului.<\/li>\n<li><strong>Angrenaj:<\/strong> angajarea din\u021bilor produce un cuplu oscilant la <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/gear-mesh-frequency\/\">frecven\u021ba de angrenare<\/a>.<\/li>\n<li><strong>VFD-uri:<\/strong> Comutarea PWM genereaz\u0103 armonici care pot coincide cu un mod de torsiune.<\/li>\n<li><strong>Electric:<\/strong> motor <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/pole-pass-frequency\/\">pole-passing<\/a> \u0219i <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/slip-frequency\/\">frecven\u021be de alunecare<\/a> s\u0103 aplice o for\u021b\u0103 de torsiune suplimentar\u0103.<\/li>\n<\/ul>\n<h3>Diagrama Campbell pentru torsiune<\/h3>\n<p>Instrumentul grafic standard pentru corelarea frecven\u021belor cu viteza este <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/campbell-diagram\/\">Diagrama Campbell<\/a>:<\/p>\n<ul>\n<li>Frecven\u021bele naturale de torsiune sunt reprezentate grafic \u00een func\u021bie de viteza de func\u021bionare.<\/li>\n<li>Liniile ordinelor de excita\u021bie (1\u00d7, 2\u00d7, ordinea de aprindere, ordinul de angrenare) sunt suprapuse.<\/li>\n<li>Atunci c\u00e2nd o linie de ordin intersecteaz\u0103 o frecven\u021b\u0103 natural\u0103, apare o vitez\u0103 critic\u0103 de torsiune \u2014 un punct de interferen\u021b\u0103 care trebuie evitat.<\/li>\n<li>Imaginea v\u0103 ajut\u0103 apoi s\u0103 alege\u021bi vitezele de func\u021bionare \u0219i eventualele benzi restric\u021bionate. Pute\u021bi schi\u021ba aceea\u0219i hart\u0103 a interferen\u021belor pentru o anumit\u0103 linie de transmisie cu ajutorul <a href=\"https:\/\/vibromera.eu\/ro\/calculators\/campbell-diagram-calculator\/\">Calculator cu diagrama Campbell<\/a>.<\/li>\n<\/ul>\n<h2>4. Aplica\u021bii critice<\/h2>\n<p>Analiza la torsiune nu este necesar\u0103 \u00een toate cazurile, dar pentru c\u00e2teva familii de ma\u0219ini este practic obligatorie.<\/p>\n<ul>\n<li><strong>Sisteme de ac\u021bionare cu motor cu piston:<\/strong> grupuri electrogene diesel, compresoare cu motor pe gaz \u0219i sisteme de propulsie marin\u0103, unde fluctua\u021biile mari ale cuplului fac ca analiza s\u0103 fie absolut necesar\u0103.<\/li>\n<li><strong>Arbori de transmisie lungi:<\/strong> sisteme de ac\u021bionare pentru laminoare, arbori de elice pentru nave \u0219i sisteme de ac\u021bionare pentru ma\u0219ini de fabricat h\u00e2rtie, unde lungimea mare reduce rigiditatea torsional\u0103 \u0219i scade frecven\u021bele proprii \u00een domeniul de func\u021bionare.<\/li>\n<li><strong>Cutii de viteze de mare putere:<\/strong> cutii de viteze pentru turbine eoliene \u0219i reductoare industriale cu o putere de peste aproximativ 1.000 CP, \u00een cazul c\u0103rora excita\u021bia din cauza angren\u0103rii ro\u021bilor din\u021bate poate genera o mod\u0103 de torsiune.<\/li>\n<li><strong>Sisteme de motoare cu variator de frecven\u021b\u0103:<\/strong> o problem\u0103 din ce \u00een ce mai \u00eengrijor\u0103toare pe m\u0103sur\u0103 ce num\u0103rul de motoare cre\u0219te, deoarece armonicele PWM pot provoca rezonan\u021be torsionale pe care un motor cu vitez\u0103 fix\u0103 nu le-ar produce niciodat\u0103.<\/li>\n<\/ul>\n<h2>5. Interpretarea rezultatelor<\/h2>\n<p>Un studiu de torsiune genereaz\u0103 trei rezultate care, \u00eempreun\u0103, determin\u0103 dac\u0103 un sistem de transmisie poate func\u021biona \u00een condi\u021bii de siguran\u021b\u0103.<\/p>\n<h3>Frecven\u021be naturale de torsiune<\/h3>\n<ul>\n<li>Identificat pe baza m\u0103sur\u0103torilor, a calculelor sau a ambelor.<\/li>\n<li>Comparativ cu toate frecven\u021bele de excita\u021bie credibile.<\/li>\n<li>S-a verificat dac\u0103 exist\u0103 o separare adecvat\u0103 \u2014 o marj\u0103 confortabil\u0103 \u00eentre frecven\u021ba modului \u0219i frecven\u021ba de for\u021bare pe \u00eentregul interval de func\u021bionare.<\/li>\n<\/ul>\n<h3>Niveluri de tensiune<\/h3>\n<ul>\n<li>Solicitarea de forfecare alternativ\u0103 se calculeaz\u0103 pe baza amplitudinii de torsiune m\u0103surate.<\/li>\n<li>Aceasta este comparat\u0103 cu limita de rezisten\u021b\u0103 (la oboseal\u0103) a materialului.<\/li>\n<li>Se estimeaz\u0103 propor\u021bia din durata de via\u021b\u0103 la oboseal\u0103 consumat\u0103 pe or\u0103 sau la fiecare pornire.<\/li>\n<li>Urmeaz\u0103 concluzia: sunt solicit\u0103rile acceptabile pentru durata de via\u021b\u0103 prev\u0103zut\u0103?<\/li>\n<\/ul>\n<h3>Amortizare<\/h3>\n<ul>\n<li>M\u0103surat\u0103 pe baza intensit\u0103\u021bii r\u0103spunsului la fiecare rezonan\u021b\u0103 de torsiune.<\/li>\n<li>De torsiune <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/damping\/\">amortizare<\/a> este de obicei foarte sc\u0103zut\u0103 \u2014 adesea sub 1% din valoarea critic\u0103.<\/li>\n<li>O amortizare redus\u0103 \u00eenseamn\u0103 v\u00e2rfuri de rezonan\u021b\u0103 \u00eenalte \u0219i \u00eenguste \u0219i o amplificare mare \u00een cazul \u00een care un ordin de excita\u021bie coincide cu un mod.<\/li>\n<\/ul>\n<h2>6. Strategii de atenuare<\/h2>\n<p>Atunci c\u00e2nd analiza semnaleaz\u0103 o problem\u0103, exist\u0103 trei solu\u021bii disponibile, care sunt de obicei aplicate \u00een aceast\u0103 ordine de prioritate.<\/p>\n<h3>Separarea frecven\u021bei<\/h3>\n<ul>\n<li>Deplasa\u021bi frecven\u021bele naturale de torsiune departe de fiecare frecven\u021b\u0103 de excita\u021bie.<\/li>\n<li>Regla\u021bi diametrul sau lungimea arborelui sau schimba\u021bi cuplajul torsional <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/stiffness\/\">rigiditate<\/a>, pentru a regla din nou modurile.<\/li>\n<li>Modifica\u021bi iner\u021biile \u2014 de exemplu, prin ad\u0103ugarea unui volant \u2014 pentru a modifica frecven\u021bele naturale.<\/li>\n<\/ul>\n<h3>Adding Damping<\/h3>\n<ul>\n<li>Monta\u021bi un amortizor de torsiune (de tip v\u00e2scos sau cu frecare) pentru a disipa energia generat\u0103 de rezonan\u021b\u0103.<\/li>\n<li>Se recomand\u0103 utilizarea cuplajelor flexibile cu amortizare ridicat\u0103 \u00een locul celor rigide.<\/li>\n<li>Ambele reduc amplificarea la rezonan\u021b\u0103 chiar \u0219i atunci c\u00e2nd separarea perfect\u0103 este imposibil\u0103.<\/li>\n<\/ul>\n<h3>Modific\u0103ri ale vitezei de func\u021bionare<\/h3>\n<ul>\n<li>Evita\u021bi func\u021bionarea continu\u0103 la tura\u021biile critice de torsiune identificate.<\/li>\n<li>Defini\u021bi \u0219i impune\u021bi benzi de vitez\u0103 restric\u021bionate prin care utilajul trece rapid.<\/li>\n<li>\u00cen cazul unui convertizor de frecven\u021b\u0103, regla\u021bi convertizorul astfel \u00eenc\u00e2t s\u0103 se reduc\u0103 la minimum excita\u021bia la armonicele problematice.<\/li>\n<\/ul>\n<h2>7. Analiza torsiunii \u00een cadrul unui program de teren<\/h2>\n<p>Lucr\u0103rile de analiz\u0103 a torsiunii sunt specializate, dar nu sunt singurele \u2014 ele se desf\u0103\u0219oar\u0103 \u00een paralel cu verific\u0103rile de rutin\u0103 privind echilibrarea \u0219i vibra\u021biile laterale, care asigur\u0103 buna func\u021bionare a trenului de transmisie, iar o imagine lateral\u0103 f\u0103r\u0103 anomalii constituie punctul de referin\u021b\u0103 pe fondul c\u0103ruia se eviden\u021biaz\u0103 o anomalie torsional\u0103. \u00cen practica de zi cu zi pe teren, un inginer confirm\u0103 mai \u00eent\u00e2i c\u0103 rotorul \u00een sine este bine echilibrat \u0219i c\u0103 1\u00d7 <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/unbalance\/\">dezechilibru<\/a> este sub control, deoarece dezechilibrul rezidual \u0219i <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/misalignment\/\">nealiniere<\/a> adaug\u0103 propria varia\u021bie de cuplu la linie. Un instrument portabil cu dou\u0103 canale, cum ar fi <a href=\"https:\/\/vibromera.eu\/ro\/produs\/balanset-1\/\">Balanset-1A<\/a> se ocup\u0103 de acea parte lateral\u0103 la fa\u021ba locului \u2014 m\u0103sur\u00e2nd amplitudinea \u0219i faza, echilibr\u00e2nd rotorul \u00een propriile sale lag\u0103re \u0219i verific\u00e2nd <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/residual-unbalance\/\">dezechilibru rezidual<\/a> \u2014 astfel \u00eenc\u00e2t orice energie de torsiune r\u0103mas\u0103 s\u0103 poat\u0103 fi atribuit\u0103 \u00een mod clar surselor de torsiune reale, \u0219i nu unei defec\u021biuni laterale care se prezint\u0103 ca atare. Odat\u0103 ce rotorul este echilibrat \u0219i aliniat, o m\u0103surare specific\u0103 a torsiunii (tahometru dublu sau extensometru) poate identifica comportamentul real de torsiune.<\/p>\n<p>Pe scurt, analiza torsiunii este o disciplin\u0103 specializat\u0103 \u00een domeniul vibra\u021biilor, axat\u0103 pe oscila\u021biile de torsiune care pot provoca defec\u021biuni catastrofale, invizibile \u00een cadrul monitoriz\u0103rii laterale standard. De\u0219i necesit\u0103 metode de m\u0103surare \u0219i modelare specializate, aceasta este indispensabil\u0103 pentru sistemele de ac\u021bionare cu motoare cu piston, arbori lungi, cutii de viteze de mare putere \u0219i sisteme VFD, unde vibra\u021biile de torsiune prezint\u0103 un risc real pentru fiabilitate \u0219i siguran\u021b\u0103.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/ro\/glossary\/\">\u2190 \u00cenapoi la indexul principal<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>\u00cenv\u0103\u021ba\u021bi despre analiza torsional\u0103, m\u0103surarea \u0219i evaluarea oscila\u021biilor de r\u0103sucire \u00een arbori \u0219i transmisii pentru a preveni defec\u021biunile prin oboseal\u0103 la cuplaje, angrenaje \u0219i arbori.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[114,109],"tags":[],"class_list":["post-274","glossary","type-glossary","status-publish","hentry","category-analysis","category-glossary"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/glossary\/274","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\/274\/revisions"}],"predecessor-version":[{"id":101315,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/glossary\/274\/revisions\/101315"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/media?parent=274"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/categories?post=274"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/tags?post=274"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}