{"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\/da\/glossary\/torsional-analysis\/","title":{"rendered":"Hvad er torsionsanalyse? Vurdering af vridningsvibrationer"},"content":{"rendered":"<h1>Forst\u00e5else af torsionsanalyse<\/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\/da\/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\/da\/product\/balanset-1\/\" title=\"B\u00e6rbart afbalanceringsapparat og vibrationsanalysator 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 komplet s\u00e6t med b\u00e6rbar afbalanceringsenhed og vibrationsanalysator\" 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\/da\/product-category\/devices\/\" rel=\"tag\">Enheder<\/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\/da\/product\/balanset-1\/\" title=\"B\u00e6rbart afbalanceringsapparat og vibrationsanalysator Balanset-1A\">B\u00e6rbart afbalanceringsapparat og vibrationsanalysator 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> + moms (hvis relevant)<\/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=\"\/da\/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=\"Tilf\u00f8j til kurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Tilf\u00f8j til kurv\" 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=\"\/da\/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=\"L\u00e6g i kurv: \u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d er blevet tilf\u00f8jet til din kurv\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Tilf\u00f8j til kurv<\/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\/da\/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\/da\/product\/vibration-sensor\/\" title=\"Vibrationssensor\">\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=\"Balanset-1A vibrationssensor i n\u00e6rbillede\" 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\/da\/product-category\/parts\/\" rel=\"tag\">Dele<\/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\/da\/product\/vibration-sensor\/\" title=\"Vibrationssensor\">Vibrationssensor<\/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> + moms (hvis relevant)<\/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=\"\/da\/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=\"Tilf\u00f8j til kurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Tilf\u00f8j til kurv\" 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=\"\/da\/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=\"L\u00e6g i kurv: \u201cVibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u201cVibration sensor\u201d er blevet tilf\u00f8jet til din kurv\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Tilf\u00f8j til kurv<\/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\/da\/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\/da\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optisk sensor (laser-tachometer)\">\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=\"Optisk sensor (laser-tachometer)\" 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\/da\/product-category\/parts\/\" rel=\"tag\">Dele<\/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\/da\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optisk sensor (laser-tachometer)\">Optisk sensor (laser-tachometer)<\/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> + moms (hvis relevant)<\/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=\"\/da\/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=\"Tilf\u00f8j til kurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Tilf\u00f8j til kurv\" 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=\"\/da\/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=\"L\u00e6g i kurv: \u201cOptical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u201cOptical Sensor (Laser Tachometer)\u201d er blevet tilf\u00f8jet til din kurv\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Tilf\u00f8j til kurv<\/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\/da\/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\/da\/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=\"Vibromera rotorbalanceringss\u00e6t: b\u00e6retaske, flerkanals signalbehandler, h\u00e5ndholdt analysator, magnetisk base, vibrationssensorer og spiralkabler.\" 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\/da\/product-category\/devices\/\" rel=\"tag\">Enheder<\/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\/da\/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> + moms (hvis relevant)<\/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=\"\/da\/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=\"Tilf\u00f8j til kurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Tilf\u00f8j til kurv\" 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=\"\/da\/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=\"L\u00e6g i kurv: \u201cBalanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u201cBalanset-4\u201d er blevet tilf\u00f8jet til din kurv\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Tilf\u00f8j til kurv<\/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\/da\/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\/da\/product\/magnet-stand\/\" title=\"Magnetisk stativ 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=\"Magnetbase.\" 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\/da\/product-category\/parts\/\" rel=\"tag\">Dele<\/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\/da\/product\/magnet-stand\/\" title=\"Magnetisk stativ Insize-60-kgf\">Magnetisk stativ 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> + moms (hvis relevant)<\/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=\"\/da\/wp-json\/wp\/v2\/glossary\/274?add-to-cart=1852\" data-quantity=\"1\" data-product_id=\"1852\" 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data-no-translation-data-success_message=\"\">Tilf\u00f8j til kurv<\/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\/da\/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\/da\/product\/reflective-tape\/\" title=\"Reflekterende tape\">\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=\"Reflekterende tape\" 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\/da\/product-category\/parts\/\" rel=\"tag\">Dele<\/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\/da\/product\/reflective-tape\/\" title=\"Reflekterende tape\">Reflekterende tape<\/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> + moms (hvis relevant)<\/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=\"\/da\/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=\"Tilf\u00f8j til kurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Tilf\u00f8j til kurv\" 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=\"\/da\/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=\"L\u00e6g i kurv: \u201cReflective tape\u201d\" rel=\"nofollow\" data-success_message=\"\u201cReflective tape\u201d er blevet tilf\u00f8jet til din kurv\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Tilf\u00f8j til kurv<\/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\/da\/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\/da\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dynamisk balancer &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=\"Balanset-1A-s\u00e6t med interface-enhed, sensorer, omdrejningst\u00e6ller og tilbeh\u00f8r\" 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\/da\/product-category\/devices\/\" rel=\"tag\">Enheder<\/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\/da\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dynamisk balancer &quot;Balanset-1A&quot; OEM\">Dynamisk balancer \"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> + moms (hvis relevant)<\/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=\"\/da\/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=\"Tilf\u00f8j til kurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Tilf\u00f8j til kurv\" 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=\"\/da\/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=\"L\u00e6g i kurv: \u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"\u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d er blevet tilf\u00f8jet til din kurv\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Tilf\u00f8j til kurv<\/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>Torsionsanalyse<\/strong> er m\u00e5ling, evaluering og modellering af <a href=\"https:\/\/vibromera.eu\/da\/glossary\/torsional-vibration\/\">torsionsvibrationer<\/a> \u2014 vridningssvingninger omkring akselaksen \u2014 i drivlinjerne p\u00e5 roterende maskiner. I mods\u00e6tning til <a href=\"https:\/\/vibromera.eu\/da\/glossary\/lateral-vibration\/\">sidev\u00e6rts vibration<\/a> (b\u00f8jning), som l\u00e6ses direkte af standard <a href=\"https:\/\/vibromera.eu\/da\/glossary\/accelerometer\/\">Accelerometre<\/a> fastgjort til et lejehus, medf\u00f8rer vridningsbev\u00e6gelser slet ingen sidev\u00e6rts forskydning og er derfor usynlig for almindelige <a href=\"https:\/\/vibromera.eu\/da\/glossary\/vibration-analysis\/\">Vibrationsanalyse<\/a>. Det kr\u00e6ver specialiserede teknikker at m\u00e5le det \u2014 str\u00e6ksensorer, dobbelte omdrejningst\u00e6llere eller laser <a href=\"https:\/\/vibromera.eu\/da\/glossary\/laser-vibrometry\/\">vibrometry<\/a> \u2014 sammen med en analyse til bestemmelse af torsionsegenfrekvenser og vurdering af <a href=\"https:\/\/vibromera.eu\/da\/glossary\/fatigue\/\">tr\u00e6thed<\/a> risiko i aksler, koblinger og gear.<\/p>\n<p>Dette omr\u00e5de er af afg\u00f8rende betydning for drivsystemer med stempelmotorer, lange drivaksler, gearkasser med h\u00f8j effekt og motorsystemer med frekvensomformere (VFD), hvor torsionsvibrationer kan for\u00e5rsage pludselige, katastrofale svigt i aksler eller koblinger, selv n\u00e5r der er sidev\u00e6rts <a href=\"https:\/\/vibromera.eu\/da\/glossary\/vibration-severity\/\">vibrationssv\u00e6rhedsgrad<\/a> ser helt acceptabelt ud. Det er en specialiseret, men afg\u00f8rende funktion til at forhindre den slags uventede nedbrud, som almindelig overv\u00e5gning aldrig kan forudse.<\/p>\n<h2>1. Hvorfor er torsionsanalyse n\u00f8dvendig?<\/h2>\n<h3>Torsionsvibrationer kontra laterale vibrationer<\/h3>\n<p>De to bev\u00e6gelser er mekanisk uafh\u00e6ngige af hinanden, og netop denne uafh\u00e6ngighed er grunden til, at der findes en s\u00e6rskilt disciplin:<\/p>\n<ul>\n<li><strong>Sidel\u00e6ns:<\/strong> b\u00f8jning og sidev\u00e6rts bev\u00e6gelse af akslen og lejerne \u2014 let at m\u00e5le med et standardaccelerometer eller <a href=\"https:\/\/vibromera.eu\/da\/glossary\/proximity-probe\/\">n\u00e6rhedssonde<\/a>.<\/li>\n<li><strong>Torsionel:<\/strong> den drejer om sin rotationsakse uden nogen synlig sidev\u00e6rts bev\u00e6gelse, hvilket g\u00f8r den usynlig for konventionelt monterede sensorer.<\/li>\n<li><strong>Uafh\u00e6ngighed:<\/strong> En maskine kan v\u00e6re udsat for kraftige vridningsvibrationer, selvom de laterale vibrationer er lave, og omvendt \u2014 de to st\u00f8rrelser f\u00f8lger ikke hinanden.<\/li>\n<li><strong>Skader:<\/strong> Torsionsvibrationer kan for\u00e5rsage brud p\u00e5 aksler og koblinger uden nogen som helst forvarsel, hvilket netop er grunden til, at de er s\u00e5 farlige.<\/li>\n<\/ul>\n<h3>Typiske fejlformer<\/h3>\n<p>Da torsionsp\u00e5virkning p\u00e5f\u00f8rer drivlinjen cyklisk forskydningssp\u00e6nding, har fejl i denne et karakteristisk m\u00f8nster:<\/p>\n<ul>\n<li><strong>Tr\u00e6thedsbrud p\u00e5 aksler:<\/strong> typisk et rent brud, der ligger i en vinkel p\u00e5 ca. 45\u00b0 i forhold til akslens akse, hvilket er det plan, hvor forskydningssp\u00e6ndingen er st\u00f8rst.<\/li>\n<li><strong>Fejl i koblingselementet:<\/strong> revnede t\u00e6nder i gearkoblinger eller revnede fleksible elementer i elastomer- og skivekoblinger.<\/li>\n<li><strong>Brud p\u00e5 tandhjul:<\/strong> drevet af svingende, skiftende tandbelastninger snarere end et konstant drejningsmoment.<\/li>\n<li><strong>Skader p\u00e5 n\u00f8gle og n\u00f8glehul:<\/strong> slid og l\u00f8sning, n\u00e5r samlingen bev\u00e6ges frem og tilbage ved den skiftende vridning.<\/li>\n<\/ul>\n<h2>2. M\u00e5leteknikker<\/h2>\n<p>Da der ikke findes nogen praktisk overflade, man kan rette en sensor mod, er der opst\u00e5et fire praktiske metoder, hvor man afvejer n\u00f8jagtighed mod pris og frekvensomr\u00e5de.<\/p>\n<h3>T\u00f8jningsm\u00e5lermetoden<\/h3>\n<p>Den mest direkte metode \u2014 m\u00e5ling af vridningssp\u00e6nding ved kilden:<\/p>\n<ul>\n<li>T\u00f8jningsm\u00e5lerne er fastgjort i en vinkel p\u00e5 45\u00b0 i forhold til akselaksen, hvilket er den retning, der registrerer den st\u00f8rste forskydningssp\u00e6nding.<\/li>\n<li>De m\u00e5ler den forskydningsdeformation, der opst\u00e5r ved vridning, og som direkte kan omregnes til drejningsmoment og vekslende sp\u00e6nding.<\/li>\n<li>En roterende aksel kr\u00e6ver enten sleberinge eller tr\u00e5dl\u00f8s forbindelse <a href=\"https:\/\/vibromera.eu\/da\/glossary\/telemetry\/\">telemetri<\/a> for at opfange signalet fra det roterende element.<\/li>\n<li>Det er den mest pr\u00e6cise metode, men ogs\u00e5 den mest komplicerede og dyre, s\u00e5 den anvendes hovedsageligt inden for forskning og udvikling.<\/li>\n<\/ul>\n<h3>Metoden med dobbelt omdrejningst\u00e6ller<\/h3>\n<ul>\n<li>To optiske sensorer \u2014 typisk to <a href=\"https:\/\/vibromera.eu\/da\/glossary\/laser-tachometer\/\">laseromdrejningst\u00e6llere<\/a> \u2014 er rettet mod forskellige punkter p\u00e5 akslen.<\/li>\n<li>Instrumentet m\u00e5ler det \u00f8jeblikkelige <a href=\"https:\/\/vibromera.eu\/da\/glossary\/phase\/\">fase<\/a> forskellen mellem de to stationer.<\/li>\n<li>Denne faseforskel svarer til vinkelforskydningen mellem akslerne, hvilket netop er selve torsionssvingningen.<\/li>\n<li>Metoden er ber\u00f8ringsfri og virkelig praktisk i praksis, men er normalt begr\u00e6nset til lavfrekvente torsionskomponenter under ca. 100 Hz.<\/li>\n<\/ul>\n<h3>Laser-torsionsvibrometer<\/h3>\n<ul>\n<li>Et specialudviklet laser-Doppler-system, der er rettet mod akslens overflade.<\/li>\n<li>Den m\u00e5ler vinkelhastighedsudsving direkte uden forberedelse af akslen.<\/li>\n<li>Ber\u00f8ringsfri, med et bredt anvendeligt frekvensomr\u00e5de.<\/li>\n<li>Kraftfuldt, men dyrt udstyr, der er forbeholdt kr\u00e6vende unders\u00f8gelser.<\/li>\n<\/ul>\n<h3>Motorstr\u00f8msanalyse<\/h3>\n<ul>\n<li>Torsionsvibrationer i en motordrevet drivlinje p\u00e5virker belastningen og medf\u00f8rer derfor sm\u00e5 udsving i motorstr\u00f8mmen.<\/li>\n<li>Analyse af motorstr\u00f8mmen <a href=\"https:\/\/vibromera.eu\/da\/glossary\/spectrum\/\">spektrum<\/a> afsl\u00f8rer disse udsving indirekte.<\/li>\n<li>Det er fuldst\u00e6ndig ikke-invasivt \u2014 der kommer slet ingen sensor i n\u00e6rheden af skaftet.<\/li>\n<li>Det b\u00f8r bedst betragtes som et screeningsv\u00e6rkt\u00f8j, der p\u00e5peger et problem, som det er v\u00e6rd at f\u00e5 bekr\u00e6ftet ved hj\u00e6lp af en direkte metode.<\/li>\n<\/ul>\n<h2>3. Analytisk torsionsanalyse<\/h2>\n<p>M\u00e5linger viser, hvad en maskine g\u00f8r lige nu; modellering viser, hvad den vil g\u00f8re over hele sit hastighedsomr\u00e5de, og giver ingeni\u00f8rerne mulighed for at l\u00f8se problemet, inden der sk\u00e6res i metallet.<\/p>\n<h3>Matematisk modellering<\/h3>\n<ul>\n<li>Drivlinjen er reduceret til en torsionsmodel med koncentrerede masser \u2014 inerti-skiver forbundet med torsionsfjedre (akselsektionerne og koblingerne).<\/li>\n<li>Ud fra dette beregnes torsionsresonansfrekvenserne.<\/li>\n<li>Modellen forudsiger responsen p\u00e5 hver enkelt excitationskilde og identificerer kritiske torsionshastigheder <a href=\"https:\/\/vibromera.eu\/da\/glossary\/critical-speed\/\">kritiske hastigheder<\/a> og <a href=\"https:\/\/vibromera.eu\/da\/glossary\/resonance\/\">resonanser<\/a>.<\/li>\n<\/ul>\n<h3>Excitationskilder<\/h3>\n<p>Torsionsresonanser bliver f\u00f8rst farlige, n\u00e5r noget fremkalder dem ved den rette frekvens. De mest almindelige \u00e5rsager er:<\/p>\n<ul>\n<li><strong>Stempelmotorer:<\/strong> t\u00e6ndingsimpulser fra hver cylinder skaber kraftig torsionsvibration ved motorordrer.<\/li>\n<li><strong>Tandindgreb:<\/strong> Tandindgrebet frembringer et svingende drejningsmoment ved <a href=\"https:\/\/vibromera.eu\/da\/glossary\/gear-mesh-frequency\/\">gearindgrebsfrekvens<\/a>.<\/li>\n<li><strong>VFD&#039;er:<\/strong> PWM-kommutering genererer harmoniske svingninger, der kan falde sammen med en torsionsmodi.<\/li>\n<li><strong>Elektrisk:<\/strong> motor <a href=\"https:\/\/vibromera.eu\/da\/glossary\/pole-pass-frequency\/\">pole-passing<\/a> og <a href=\"https:\/\/vibromera.eu\/da\/glossary\/slip-frequency\/\">glidefrekvenser<\/a> tilf\u00f8je yderligere vridningsp\u00e5virkning.<\/li>\n<\/ul>\n<h3>Campbell-diagrammet for vridning<\/h3>\n<p>Det almindelige grafiske v\u00e6rkt\u00f8j til at sammenholde frekvenser med hastighed er <a href=\"https:\/\/vibromera.eu\/da\/glossary\/campbell-diagram\/\">Campbell-diagram<\/a>:<\/p>\n<ul>\n<li>Torsionsresonansfrekvenserne er afbildet i forhold til l\u00f8behastigheden.<\/li>\n<li>Linjer for excitationsordener (1\u00d7, 2\u00d7, t\u00e6ndingsorden, indgrebsorden) er overlejret.<\/li>\n<li>N\u00e5r en ordrelinje krydser en egenfrekvens, opst\u00e5r der en kritisk torsionshastighed \u2014 et interferenspunkt, der b\u00f8r undg\u00e5s.<\/li>\n<li>Billedet giver derefter en vejledning til valg af driftshastigheder og eventuelle begr\u00e6nsede b\u00e5nd. Du kan tegne det samme interferenskort for en given drivlinje med <a href=\"https:\/\/vibromera.eu\/da\/calculators\/campbell-diagram-calculator\/\">Campbell-diagramberegner<\/a>.<\/li>\n<\/ul>\n<h2>4. Kritiske applikationer<\/h2>\n<p>Torsionsanalyse er ikke n\u00f8dvendig overalt, men inden for en r\u00e6kke maskinfamilier er den reelt obligatorisk.<\/p>\n<ul>\n<li><strong>Drivsystemer med stempelmotorer:<\/strong> dieselgenerators\u00e6t, gasdrevne kompressorer og skibsfremdrift, hvor store drejningsmomentudsving g\u00f8r en analyse uundg\u00e5elig.<\/li>\n<li><strong>Lange drivaksler:<\/strong> valsv\u00e6rksdrev, skibspropelaksler og papirmaskindrev, hvor den store l\u00e6ngde mindsker vridningsstivheden og bringer egenfrekvenserne ned i driftsomr\u00e5det.<\/li>\n<li><strong>Gearkasser med h\u00f8j effekt:<\/strong> gearkasser til vindm\u00f8ller og industrielle reduktionsgear p\u00e5 over ca. 1.000 hk, hvor tandindgreb kan udl\u00f8se en torsionssvingning.<\/li>\n<li><strong>VFD-motorsystemer:<\/strong> et stigende problem i takt med, at antallet af motorer vokser, da PWM-harmoniske svingninger kan udl\u00f8se torsionsresonanser, som en motor med fast omdrejningstal aldrig ville g\u00f8re.<\/li>\n<\/ul>\n<h2>5. Fortolkning af resultaterne<\/h2>\n<p>En torsionsanalyse resulterer i tre resultater, der tilsammen afg\u00f8r, om et drivsystem er sikkert at bruge.<\/p>\n<h3>Torsionelle naturlige frekvenser<\/h3>\n<ul>\n<li>Fastsat p\u00e5 baggrund af m\u00e5linger, beregninger eller begge dele.<\/li>\n<li>Sammenlignet med alle trov\u00e6rdige excitationsfrekvenser.<\/li>\n<li>Der er kontrolleret, at der er tilstr\u00e6kkelig adskillelse \u2014 en passende margin mellem svingningstilstanden og anregningsfrekvensen over hele driftsomr\u00e5det.<\/li>\n<\/ul>\n<h3>Stressniveauer<\/h3>\n<ul>\n<li>Den vekslende forskydningssp\u00e6nding beregnes ud fra den m\u00e5lte vridningsamplitude.<\/li>\n<li>Det sammenlignes med materialets udmattelsesgr\u00e6nse.<\/li>\n<li>Der foretages et sk\u00f8n over, hvor stor en del af udmattelseslevetiden der forbruges pr. time eller pr. opstart.<\/li>\n<li>Konklusionen lyder: Er belastningerne acceptable i forhold til den kr\u00e6vede levetid?<\/li>\n<\/ul>\n<h3>D\u00e6mpning<\/h3>\n<ul>\n<li>M\u00e5lt ud fra responsens skarphed ved hver torsionsresonans.<\/li>\n<li>Torsionel <a href=\"https:\/\/vibromera.eu\/da\/glossary\/damping\/\">d\u00e6mpning<\/a> er typisk meget lav \u2014 ofte under 1 % af det kritiske niveau.<\/li>\n<li>Lav d\u00e6mpning medf\u00f8rer h\u00f8je, smalle resonansspidser og stor forst\u00e6rkning, hvis en excitationsorden falder sammen med en svingningstilstand.<\/li>\n<\/ul>\n<h2>6. Strategier til afb\u00f8dning<\/h2>\n<p>N\u00e5r en analyse p\u00e5peger et problem, st\u00e5r der tre muligheder til r\u00e5dighed, og de anvendes normalt i denne prioriterede r\u00e6kkef\u00f8lge.<\/p>\n<h3>Frekvensseparation<\/h3>\n<ul>\n<li>Flyt de naturlige torsionsfrekvenser v\u00e6k fra alle anregningsfrekvenser.<\/li>\n<li>Juster akseldiameteren eller -l\u00e6ngden, eller \u00e6ndr koblingens torsionsstivhed <a href=\"https:\/\/vibromera.eu\/da\/glossary\/stiffness\/\">stivhed<\/a>, for at flytte egenfrekvenserne.<\/li>\n<li>\u00c6ndr inerti \u2014 for eksempel ved at tilf\u00f8je et svinghjul \u2014 for at \u00e6ndre de naturlige frekvenser.<\/li>\n<\/ul>\n<h3>Adding Damping<\/h3>\n<ul>\n<li>Monter en torsionsd\u00e6mper (af visk\u00f8s eller friktionstypen) for at aflede energi fra resonansen.<\/li>\n<li>V\u00e6lg fleksible koblinger med h\u00f8j d\u00e6mpning i stedet for stive koblinger.<\/li>\n<li>Begge reducerer forst\u00e6rkningen ved resonans, selv n\u00e5r det ikke er muligt at opn\u00e5 fuldst\u00e6ndig adskillelse.<\/li>\n<\/ul>\n<h3>\u00c6ndringer i driftshastigheden<\/h3>\n<ul>\n<li>Undg\u00e5 kontinuerlig drift ved de fastlagte torsionskritiske hastigheder.<\/li>\n<li>Definer og h\u00e5ndh\u00e6v forbudte hastighedsb\u00e5nd, som maskinen passerer hurtigt gennem.<\/li>\n<li>P\u00e5 en frekvensomformer skal man indstille drevet, s\u00e5 anregningen ved de problematiske harmoniske minimeres.<\/li>\n<\/ul>\n<h2>7. Torsionsanalyse som led i et feltprogram<\/h2>\n<p>Torsionsarbejde er et specialiseret omr\u00e5de, men det st\u00e5r ikke alene \u2014 det udf\u00f8res sidel\u00f8bende med de rutinem\u00e6ssige afbalanceringer og kontroller af sidevibrationer, der holder drivlinjen i god stand, og et rent sidevibrationsbillede udg\u00f8r det grundlag, hvorp\u00e5 en torsionsafvigelse tr\u00e6der tydeligt frem. I den daglige praksis i marken sikrer en tekniker sig f\u00f8rst, at selve rotoren er korrekt afbalanceret, og at 1\u00d7 <a href=\"https:\/\/vibromera.eu\/da\/glossary\/unbalance\/\">ubalance<\/a> er under kontrol, fordi den resterende ubalance og <a href=\"https:\/\/vibromera.eu\/da\/glossary\/misalignment\/\">fejljustering<\/a> tilf\u00f8jer deres egen drejningsmomentvariation til linjen. Et b\u00e6rbart tokanalsinstrument som f.eks. <a href=\"https:\/\/vibromera.eu\/da\/vare-2\/balanset-1\/\">Balanset-1A<\/a> tager sig af den side p\u00e5 stedet \u2014 m\u00e5ler amplitude og fase, afbalancerer rotoren i dens egne lejer og kontrollerer <a href=\"https:\/\/vibromera.eu\/da\/glossary\/residual-unbalance\/\">resterende ubalance<\/a> \u2014 s\u00e5ledes at eventuel tilbagev\u00e6rende vridningsenergi entydigt kan tilskrives egentlige vridningskilder frem for en tv\u00e6rg\u00e5ende fejl, der giver sig ud for at v\u00e6re en s\u00e5dan. N\u00e5r rotoren er afbalanceret og justeret, kan en dedikeret vridningsm\u00e5ling (dobbelt omdrejningst\u00e6ller eller str\u00e6ksensor) derefter isolere den reelle vridningsadf\u00e6rd.<\/p>\n<p>Kort sagt er torsionsanalyse en specialiseret vibrationsdisciplin, der fokuserer p\u00e5 vridningssvingninger, som kan for\u00e5rsage katastrofale svigt, der ikke kan opfanges ved almindelig sidev\u00e6rts overv\u00e5gning. Selvom det kr\u00e6ver specialudviklede m\u00e5le- og modelleringsmetoder, er det uundv\u00e6rligt for drivsystemer med stempelmotorer, lange aksler, gearkasser med h\u00f8j effekt og frekvensomformersystemer, hvor torsionsvibrationer udg\u00f8r en reel risiko for driftssikkerheden og sikkerheden.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/da\/glossary\/\">\u2190 Tilbage til hovedindekset<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>L\u00e6r om torsionsanalyse, m\u00e5ling og evaluering af vridningssvingninger i aksler og drivlinjer for at forhindre udmattelsesfejl i koblinger, gear og aksler.<\/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\/da\/wp-json\/wp\/v2\/glossary\/274","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/da\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/da\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/da\/wp-json\/wp\/v2\/glossary\/274\/revisions"}],"predecessor-version":[{"id":101315,"href":"https:\/\/vibromera.eu\/da\/wp-json\/wp\/v2\/glossary\/274\/revisions\/101315"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/da\/wp-json\/wp\/v2\/media?parent=274"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/da\/wp-json\/wp\/v2\/categories?post=274"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/da\/wp-json\/wp\/v2\/tags?post=274"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}