{"id":275,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/torsional-vibration\/"},"modified":"2026-07-03T10:16:55","modified_gmt":"2026-07-03T10:16:55","slug":"torsional-vibration","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/da\/glossary\/torsional-vibration\/","title":{"rendered":"Hvad er torsionsvibrationer? \u00c5rsager og virkninger"},"content":{"rendered":"<h1>Forst\u00e5else af torsionsvibrationer i roterende maskiner<\/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\/275?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\/275?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\/275?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\/275?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\/275?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\/275?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\/275?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\/275?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\/275?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=\"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\/275?add-to-cart=1852\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1852\" 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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\/275?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\" 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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\/275?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\/275?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>Torsionsvibrationer<\/strong> er den vinkelm\u00e6ssige svingning af en roterende aksel omkring sin egen akse \u2014 en vridnings- og udvridningsbev\u00e6gelse, hvor forskellige dele af akslen i kortvarige \u00f8jeblikke roterer med lidt forskellige hastigheder. I mods\u00e6tning til <a href=\"https:\/\/vibromera.eu\/da\/glossary\/lateral-vibration\/\">sidev\u00e6rts vibration<\/a> (bev\u00e6gelse fra side til side) eller <a href=\"https:\/\/vibromera.eu\/da\/glossary\/axial-vibration\/\">aksial vibration<\/a> (frem- og tilbageg\u00e5ende bev\u00e6gelse langs akslen) indeb\u00e6rer torsionsvibrationer slet ingen line\u00e6r forskydning; akslen accelererer og decelererer blot omkring den gennemsnitlige rotationshastighed og uds\u00e6ttes for skiftevis positiv og negativ vinkelacceleration. Selvom dens amplituder normalt er langt mindre end ved lateral vibration, og den er notorisk sv\u00e6r at opdage, kan den opbygge enorme vekslende sp\u00e6ndinger i aksler, koblinger og gear \u2014 og det er en af de f\u00e5 fejltyper, der kan \u00f8del\u00e6gge et drivsystem n\u00e6sten uden forvarsel.<\/p>\n<h2>1. Den fysiske mekanisme<\/h2>\n<h3>Hvordan torsionsvibrationer opst\u00e5r<\/h3>\n<p>Mekanismen kan nemmest forestilles som et fjeder-masse-system, der er viklet omkring rotationsaksen:<\/p>\n<ul>\n<li>Forestil dig en lang aksel, der forbinder en motor med en drevet belastning<\/li>\n<li>Akslen fungerer som en torsionsfjeder, der lagrer og frigiver energi, n\u00e5r den vrides.<\/li>\n<li>N\u00e5r et varierende drejningsmoment p\u00e5virker den, begynder akslen at svinge, s\u00e5ledes at visse sektioner roterer hurtigere og langsommere end gennemsnitshastigheden.<\/li>\n<li>Disse svingninger forst\u00e6rkes kraftigt, hvis anregningsfrekvensen falder sammen med en torsionsegenfrekvens \u2014 en torsions <a href=\"https:\/\/vibromera.eu\/da\/glossary\/resonance\/\">resonans<\/a>.<\/li>\n<\/ul>\n<h3>Torsionelle naturlige frekvenser<\/h3>\n<p>Hvert akselsystem har torsionsresonansfrekvenser, der bestemmes af:<\/p>\n<ul>\n<li><strong>Akselens vridningsstivhed:<\/strong> en funktion af akseldiameter, l\u00e6ngde og materialets forskydningsmodul.<\/li>\n<li><strong>Systeminerti:<\/strong> tr\u00e6ghedsmomenterne for de tilsluttede roterende komponenter \u2014 motorrotor, koblinger, gear og belastning.<\/li>\n<li><strong>Flere tilstande:<\/strong> Komplekse drivlinjer har flere torsionsresonansfrekvenser, ikke kun \u00e9n.<\/li>\n<li><strong>Koblingseffekter:<\/strong> Fleksible koblinger \u00f8ger torsionseftergivenhed og s\u00e6nker de naturlige frekvenser<\/li>\n<\/ul>\n<p>Da disse frekvenser udelukkende afh\u00e6nger af stivhed og inerti \u2014 og aldrig af lejer eller fundament \u2014 kan en maskine, der er mekanisk st\u00f8jsvag i radial retning, stadig v\u00e6re udsat for en farlig torsionsresonans.<\/p>\n<h2>2. De vigtigste \u00e5rsager til torsionsvibrationer<\/h2>\n<h3>1. Variabelt drejningsmoment fra stempelmotorer<\/h3>\n<p>Den mest almindelige kilde i mange anvendelser:<\/p>\n<ul>\n<li><strong>Diesel- og benzinmotorer:<\/strong> Hver forbr\u00e6ndingscyklus giver et kortvarigt drejningsmoment i stedet for en j\u00e6vn fremdrift.<\/li>\n<li><strong>T\u00e6ndingsr\u00e6kkef\u00f8lge:<\/strong> skaber harmoniske svingninger i motorens omdrejningstal.<\/li>\n<li><strong>Antal cylindre:<\/strong> F\u00e6rre cylindre medf\u00f8rer st\u00f8rre variation i drejningsmomentet pr. omdrejning.<\/li>\n<li><strong>Resonansrisiko:<\/strong> driftshastigheden kan falde sammen med en torsionsresonans <a href=\"https:\/\/vibromera.eu\/da\/glossary\/critical-speed\/\">kritisk hastighed<\/a>.<\/li>\n<\/ul>\n<h3>2. Kr\u00e6fter fra tandhjulsindgreb<\/h3>\n<p>Tandhjulssystemer genererer naturligvis vridningsvibrationer:<\/p>\n<ul>\n<li>Den <a href=\"https:\/\/vibromera.eu\/da\/glossary\/gear-mesh-frequency\/\">gearindgrebsfrekvens<\/a> (antal t\u00e6nder \u00d7 omdrejningstal) giver et svingende drejningsmoment.<\/li>\n<li>Fejl i tandafstanden og un\u00f8jagtigheder i profilen bidrager yderligere til problemet.<\/li>\n<li><a href=\"https:\/\/vibromera.eu\/da\/glossary\/backlash\/\">Gear backlash<\/a> kan for\u00e5rsage st\u00f8dbelastning, n\u00e5r t\u00e6nderne glider fra hinanden og griber ind i hinanden igen.<\/li>\n<li>Flere geartrin danner komplekse torsionssystemer med flere egenformer.<\/li>\n<\/ul>\n<h3>3. Problemer med elektriske motorer<\/h3>\n<p>Elektriske motorer kan selv for\u00e5rsage vridningsforstyrrelser:<\/p>\n<ul>\n<li><strong><a href=\"https:\/\/vibromera.eu\/da\/glossary\/pole-pass-frequency\/\">Polpassagefrekvens<\/a>:<\/strong> Interaktion mellem rotor og stator skaber pulserende drejningsmoment<\/li>\n<li><strong><a href=\"https:\/\/vibromera.eu\/da\/glossary\/broken-rotor-bars\/\">\u00d8delagte rotorst\u00e6nger<\/a>:<\/strong> generere momentimpulser ved <a href=\"https:\/\/vibromera.eu\/da\/glossary\/slip-frequency\/\">slipfrekvens<\/a>.<\/li>\n<li><strong>Frekvensomformere (VFD&#x27;er):<\/strong> PWM-kommutering kan direkte fremkalde torsionsmodi.<\/li>\n<li><strong>Starttransienter:<\/strong> En motorstart medf\u00f8rer store svingninger i drejningsmomentet, n\u00e5r rotoren accelererer.<\/li>\n<\/ul>\n<h3>4. Variationer i procesbelastning<\/h3>\n<p>Variabel belastning p\u00e5 det drevne udstyr sender momentimpulser tilbage til drivlinjen:<\/p>\n<ul>\n<li>Kompressor <a href=\"https:\/\/vibromera.eu\/da\/glossary\/surging\/\">surge<\/a> events.<\/li>\n<li>Pumpe <a href=\"https:\/\/vibromera.eu\/da\/glossary\/cavitation\/\">kavitation<\/a> hvilket medf\u00f8rer pludselige stigninger i drejningsmomentet.<\/li>\n<li>Cykiske belastninger i knusere, m\u00f8ller og presser.<\/li>\n<li><a href=\"https:\/\/vibromera.eu\/da\/glossary\/blade-passing-frequency\/\">Blade-passing<\/a> kr\u00e6fter i ventilatorer og turbiner.<\/li>\n<\/ul>\n<h3>5. Problemer med kobling og drivlinje<\/h3>\n<ul>\n<li>Slidte eller beskadigede koblinger med sl\u00f8r eller tilbageslag \u2014 se <a href=\"https:\/\/vibromera.eu\/da\/glossary\/coupling-defects\/\">koblingsfejl<\/a>.<\/li>\n<li>Kardanled, der arbejder i en vinkel, hvilket skaber en 2\u00d7 vridningsp\u00e5virkning.<\/li>\n<li>Slip og rysten i remdrevet.<\/li>\n<li>K\u00e6dedrevet polygonmekanisme.<\/li>\n<\/ul>\n<h2>3. Udfordringer i forbindelse med detektering og m\u00e5ling<\/h2>\n<h3>Hvorfor torsionsvibrationer er vanskelige at detektere<\/h3>\n<p>I mods\u00e6tning til sidev\u00e6rts vibrationer unddrager torsionsvibrationer sig standardv\u00e6rkt\u00f8jskassen:<\/p>\n<ul>\n<li><strong>Ingen radial forskydning:<\/strong> ordinary <a href=\"https:\/\/vibromera.eu\/da\/glossary\/accelerometer\/\">Accelerometre<\/a> p\u00e5 lejehusene kan simpelthen ikke registrere en ren vridningsbev\u00e6gelse.<\/li>\n<li><strong>Sm\u00e5 vinkelamplituder:<\/strong> De typiske amplituder udg\u00f8r br\u00f8kdele af en grad.<\/li>\n<li><strong>N\u00f8dvendigt specialudstyr:<\/strong> der kr\u00e6ves specielle vridningssensorer eller avancerede analyser.<\/li>\n<li><strong>Noget, der ofte overses:<\/strong> det indg\u00e5r sj\u00e6ldent i en rutine <a href=\"https:\/\/vibromera.eu\/da\/glossary\/vibration-monitoring\/\">vibrationsoverv\u00e5gning<\/a> programmet, s\u00e5 det f\u00f8rste tegn er ofte en fejl.<\/li>\n<\/ul>\n<h3>M\u00e5lemetoder<\/h3>\n<h4>1. T\u00f8jningsm\u00e5lere<\/h4>\n<ul>\n<li>Monteret i en vinkel p\u00e5 45\u00b0 i forhold til akselaksen for at m\u00e5le forskydningsdeformation.<\/li>\n<li>Require a <a href=\"https:\/\/vibromera.eu\/da\/glossary\/telemetry\/\">telemetri<\/a> system til at overf\u00f8re signalet fra den roterende aksel.<\/li>\n<li>Giver et direkte m\u00e5l for vridningssp\u00e6ndingen.<\/li>\n<li>Den mest pr\u00e6cise metode, men ogs\u00e5 den mest komplicerede og dyre.<\/li>\n<\/ul>\n<h4>2. Torsionsvibrationssensorer med dobbelt sonde<\/h4>\n<ul>\n<li>To optiske eller magnetiske sensorer m\u00e5ler hastigheden p\u00e5 forskellige steder p\u00e5 akslen.<\/li>\n<li>Faseforskellen mellem de to signaler afsl\u00f8rer vridningsvibrationen.<\/li>\n<li>Ber\u00f8ringsfri m\u00e5ling.<\/li>\n<li>Kan monteres midlertidigt eller permanent.<\/li>\n<\/ul>\n<h4>3. Lasertorsionsvibrometre<\/h4>\n<ul>\n<li>Optisk m\u00e5ling af vinkelhastighedsudsvingene p\u00e5 akslen.<\/li>\n<li>Ber\u00f8ringsfri, kr\u00e6ver ingen forberedelse af akslen.<\/li>\n<li>Dyrt, men effektivt til fejlfinding.<\/li>\n<\/ul>\n<h4>4. Indirekte indikatorer<\/h4>\n<ul>\n<li>Analyse af motorstr\u00f8mssignatur (MCSA) kan afsl\u00f8re torsionsproblemer set fra det elektriske perspektiv.<\/li>\n<li>Slidm\u00f8nstre p\u00e5 koblinger og tandhjul.<\/li>\n<li>Aksel <a href=\"https:\/\/vibromera.eu\/da\/glossary\/fatigue\/\">tr\u00e6thed<\/a>-revners placering og retning.<\/li>\n<li>Us\u00e6dvanlige laterale vibrationsm\u00f8nstre, der kan v\u00e6re koblet til torsionstilstande<\/li>\n<\/ul>\n<h2>4. Konsekvenser og skadesmekanismer<\/h2>\n<h3>Tr\u00e6thedsfejl<\/h3>\n<p>Den st\u00f8rste fare ved torsionsvibrationer er udmattelse ved mange gentagelser:<\/p>\n<ul>\n<li><strong>Akselbrud:<\/strong> Tr\u00e6thedsrevner l\u00f8ber typisk i en vinkel p\u00e5 45\u00b0 i forhold til akselaksen, langs planerne med den st\u00f8rste forskydningssp\u00e6nding.<\/li>\n<li><strong>Koblingsfejl:<\/strong> Slid p\u00e5 tandhjulskoblingens t\u00e6nder og udmattelse af de fleksible elementer.<\/li>\n<li><strong>Brud p\u00e5 tandhjul:<\/strong> fremskyndet af vridningssvingninger, hvilket bidrager til <a href=\"https:\/\/vibromera.eu\/da\/glossary\/gear-defects\/\">defekter i gearet<\/a>.<\/li>\n<li><strong>Skader p\u00e5 n\u00f8gle og n\u00f8glehul:<\/strong> slid og slidskader som f\u00f8lge af det konstant skiftende drejningsmoment.<\/li>\n<\/ul>\n<h3>Karakteristika for torsionsfejl<\/h3>\n<ul>\n<li>Ofte pludseligt og katastrofalt, uden forvarsel.<\/li>\n<li>Brudfladerne ligger i en vinkel p\u00e5 ca. 45\u00b0 i forhold til skaftets akse.<\/li>\n<li>Strandm\u00e6rker p\u00e5 brudfladen, der viser udviklingen af udmattelsesspr\u00e6kken.<\/li>\n<li>Dette kan forekomme, selv n\u00e5r de laterale vibrationsniveauer er helt acceptable \u2014 hvilket er grunden til, at torsionsproblemer s\u00e5 ofte overses.<\/li>\n<\/ul>\n<h3>Problemer med ydeevnen<\/h3>\n<ul>\n<li>Problemer med hastighedsregulering i pr\u00e6cisionsdrev.<\/li>\n<li>Overdreven slitage i gearkasser og koblinger.<\/li>\n<li>St\u00f8j fra gear, der rasler, og st\u00f8d fra koblingen.<\/li>\n<li>Ineffektiv kraftoverf\u00f8rsel.<\/li>\n<\/ul>\n<h2>5. Analyse og modellering<\/h2>\n<h3>Torsionsanalyse under design<\/h3>\n<p>Et godt design kr\u00e6ver en dedikeret <a href=\"https:\/\/vibromera.eu\/da\/glossary\/torsional-analysis\/\">vridningsanalyse<\/a>:<\/p>\n<ul>\n<li><strong>Beregning af egenfrekvens:<\/strong> bestemme alle kritiske vridningshastigheder.<\/li>\n<li><strong>Analyse af tvungne reaktioner:<\/strong> forudsige vridningsamplituderne under driftsbetingelser.<\/li>\n<li><strong>Campbell-diagram:<\/strong> -en <a href=\"https:\/\/vibromera.eu\/da\/glossary\/campbell-diagram\/\">Campbell-diagram<\/a> viser torsionsfrekvenserne som en funktion af driftshastigheden for at afd\u00e6kke sammenfald.<\/li>\n<li><strong>Sp\u00e6ndingsanalyse:<\/strong> beregne de vekslende forskydningssp\u00e6ndinger i de kritiske komponenter.<\/li>\n<li><strong>Forudsigelse af udmattelseslevetid:<\/strong> vurdering af komponentens levetid under vridningsbelastning \u2014 en <a href=\"https:\/\/vibromera.eu\/da\/calculators\/fatigue-life-calculator\/\">Beregner for udmattelseslevetid<\/a> omregner den vekslende belastning og en S-N-kurve til et forventet antal cyklusser.<\/li>\n<\/ul>\n<h3>Softwarev\u00e6rkt\u00f8jer<\/h3>\n<p>Det er specialudviklet software, der st\u00e5r for de mere omfattende analyser:<\/p>\n<ul>\n<li>Modeller med flere inerti- og koncentrerede masser.<\/li>\n<li>Torsionsanalyse ved hj\u00e6lp af finite elementer.<\/li>\n<li>Simulering i tidsdom\u00e6net af transiente h\u00e6ndelser, s\u00e5som motorstart og kortslutninger.<\/li>\n<li>Harmonisk analyse i frekvensdom\u00e6net.<\/li>\n<\/ul>\n<h2>6. Metoder til afb\u00f8dning og bek\u00e6mpelse<\/h2>\n<h3>Designl\u00f8sninger<\/h3>\n<ul>\n<li><strong>Afstandsmargener:<\/strong> S\u00f8rg for, at torsionsegenfrekvenserne ligger mindst \u00b120 % fra anregningsfrekvenserne.<\/li>\n<li><strong>D\u00e6mpning:<\/strong> indbygge torsionsd\u00e6mpere (af visk\u00f8s eller friktionstypen) til at aflede energi \u2014 den praktiske side af mekanikken <a href=\"https:\/\/vibromera.eu\/da\/glossary\/damping\/\">d\u00e6mpning<\/a>.<\/li>\n<li><strong>Fleksible koblinger:<\/strong> \u00f8ge vridningsfleksibiliteten for at s\u00e6nke de naturlige frekvenser til under anregningsomr\u00e5det.<\/li>\n<li><strong>Mass tuning:<\/strong> Tilf\u00f8j svinghjul eller modificer inertier for at \u00e6ndre naturlige frekvenser<\/li>\n<li><strong>\u00c6ndringer i stivhed:<\/strong> \u00e6ndre akseldiametre eller koblingens stivhed.<\/li>\n<\/ul>\n<h3>Operationelle l\u00f8sninger<\/h3>\n<ul>\n<li><strong>Hastighedsbegr\u00e6nsninger:<\/strong> Undg\u00e5 kontinuerlig drift ved den kritiske torsionshastighed.<\/li>\n<li><strong>Hurtig acceleration:<\/strong> passere de kritiske hastigheder hurtigt under opstart.<\/li>\n<li><strong>Belastningsstyring:<\/strong> Undg\u00e5 driftsforhold, der fremkalder torsionsresonans.<\/li>\n<li><strong>VFD tuning:<\/strong> Juster drivparametrene for at minimere torsionsvibrationer.<\/li>\n<\/ul>\n<h3>Komponentvalg<\/h3>\n<ul>\n<li><strong>Koblinger med h\u00f8j d\u00e6mpning:<\/strong> elastomerkoblinger eller hydrauliske koblinger, der absorberer vridningsenergi.<\/li>\n<li><strong>Torsionsd\u00e6mpere:<\/strong> specialkonstruerede enheder til drivlinjer med stempelmotorer.<\/li>\n<li><strong>Gearkvalitet:<\/strong> Pr\u00e6cisionsgear med sn\u00e6vre tolerancer mindsker svingningerne ved kilden.<\/li>\n<li><strong>Akselmateriale:<\/strong> Materialer med h\u00f8j udmattelsesstyrke til vridningskritiske aksler<\/li>\n<\/ul>\n<h2>7. Anvendelser og standarder i industrien<\/h2>\n<h3>Kritiske applikationer<\/h3>\n<p>En vridningsanalyse er is\u00e6r vigtig for:<\/p>\n<ul>\n<li><strong>Drivsystemer med stempelmotorer:<\/strong> dieselgeneratorer og gasdrevne kompressorer.<\/li>\n<li><strong>Lange drivaksler:<\/strong> skibsfremdrift og valsev\u00e6rker.<\/li>\n<li><strong>Gearkasser med h\u00f8j effekt:<\/strong> vindm\u00f8ller og industrielle gear.<\/li>\n<li><strong>Drev med variabel hastighed:<\/strong> Anvendelser af VFD-motorer og servosystemer.<\/li>\n<li><strong>Systemer med flere legemer:<\/strong> komplekse drivlinjer med flere sammenkoblede maskiner.<\/li>\n<\/ul>\n<h3>Relevante standarder<\/h3>\n<ul>\n<li><strong><a href=\"https:\/\/vibromera.eu\/da\/glossary\/api-684\/\">API 684<\/a>:<\/strong> rotordynamik, herunder procedurer til torsionsanalyse.<\/li>\n<li><strong>API 617:<\/strong> krav til vridningsstivhed for centrifugalkompressorer.<\/li>\n<li><strong>API 672:<\/strong> Torsionsanalyse af kompressorer med indkapslet stempel.<\/li>\n<li><strong>ISO 22266:<\/strong> torsionsvibrationer i roterende maskiner.<\/li>\n<li><strong>VDI 2039:<\/strong> torsional vibration of drivelines &mdash; calculation, measurement, reduction.<\/li>\n<\/ul>\n<h2>8. Forholdet til andre vibrationstyper<\/h2>\n<p>Selvom torsionsvibrationer adskiller sig fra laterale og aksiale vibrationer, forbliver de ikke altid isolerede \u2014 de kan p\u00e5virke de andre svingningsformer:<\/p>\n<ul>\n<li><strong>Sidev\u00e6rts-torsionskobling:<\/strong> I visse geometriske former interagerer vridnings- og sidevibrationerne og udveksler energi.<\/li>\n<li><strong>Tandindgreb:<\/strong> Torsionsvibrationer \u00e6ndrer belastningen p\u00e5 t\u00e6nderne, hvilket igen fremkalder sidev\u00e6rts vibrationer.<\/li>\n<li><strong>Kardanled:<\/strong> vinkel <a href=\"https:\/\/vibromera.eu\/da\/glossary\/misalignment\/\">fejljustering<\/a> omdanner en vridningskraft til en sidev\u00e6rts bev\u00e6gelse.<\/li>\n<li><strong>Diagnostisk udfordring:<\/strong> En kompleks vibrationssignatur kan indeholde bidrag fra flere forskellige vibrationstyper p\u00e5 \u00e9n gang, og det er derfor, at en fejl, der er vanskelig at afbalancere eller justere, undertiden viser sig at have sin oprindelse i vridningsvibrationer.<\/li>\n<\/ul>\n<p>I forbindelse med rutinem\u00e6ssigt feltarbejde er den praktiske erfaring, at der ofte lurer torsionsproblemer bag tilsyneladende korrekte radiale m\u00e5lev\u00e6rdier. N\u00e5r man bruger en b\u00e6rbar analysator som f.eks. <a href=\"https:\/\/vibromera.eu\/da\/vare-2\/balanset-1\/\">Balanset-1A<\/a> bekr\u00e6fter, at 1X <a href=\"https:\/\/vibromera.eu\/da\/glossary\/unbalance\/\">ubalance<\/a> og <a href=\"https:\/\/vibromera.eu\/da\/glossary\/misalignment\/\">fejljustering<\/a> Hvis m\u00e5lingerne ligger inden for tolerancen, men drivlinjen alligevel er ramt af gentagne svigt i aksler, koblinger eller gear, er en unders\u00f8gelse af torsionsvibrationer det logiske n\u00e6ste skridt. At forst\u00e5 og h\u00e5ndtere torsionsvibrationer er afg\u00f8rende for en p\u00e5lidelig drift af kraftoverf\u00f8rselssystemer: Det f\u00e5r mindre opm\u00e6rksomhed end sidev\u00e6rts vibrationer i den rutinem\u00e6ssige overv\u00e5gning, men det er afg\u00f8rende i forbindelse med konstruktion og fejlfinding af h\u00f8jtydende eller pr\u00e6cisionsdrev, hvor svigt som f\u00f8lge af torsionsvibrationer kan f\u00e5 katastrofale f\u00f8lger.<\/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 torsionsvibrationer, den vridende svingning af roterende aksler omkring deres akse, der kan for\u00e5rsage udmattelsesfejl i koblinger, gear og drivlinjer.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,110],"tags":[],"class_list":["post-275","glossary","type-glossary","status-publish","hentry","category-glossary","category-vibration-diagnostics"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/da\/wp-json\/wp\/v2\/glossary\/275","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":2,"href":"https:\/\/vibromera.eu\/da\/wp-json\/wp\/v2\/glossary\/275\/revisions"}],"predecessor-version":[{"id":102192,"href":"https:\/\/vibromera.eu\/da\/wp-json\/wp\/v2\/glossary\/275\/revisions\/102192"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/da\/wp-json\/wp\/v2\/media?parent=275"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/da\/wp-json\/wp\/v2\/categories?post=275"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/da\/wp-json\/wp\/v2\/tags?post=275"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}