{"id":163,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/modal-analysis\/"},"modified":"2026-05-23T22:37:13","modified_gmt":"2026-05-23T22:37:13","slug":"modal-analysis","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/da\/glossary\/modal-analysis\/","title":{"rendered":"Hvad er modalanalyse? (EMA, OMA)"},"content":{"rendered":"<h1>Forst\u00e5else af modal analyse<\/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\/163?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\/163?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\/163?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\/163?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\/163?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\/163?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\/163?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\/163?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\/163?add-to-cart=1852\" data-quantity=\"1\" data-product_id=\"1852\" 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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, 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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\/163?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\/163?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>Modal analyse<\/strong> er processen med at unders\u00f8ge og karakterisere de iboende dynamiske egenskaber ved en struktur eller mekanisk system. Disse egenskaber \u2014 dets <a href=\"https:\/\/vibromera.eu\/da\/glossary\/natural-frequency\/\">naturlige frekvenser<\/a>, its <a href=\"https:\/\/vibromera.eu\/da\/glossary\/damping\/\">d\u00e6mpning<\/a> forhold, og dets <a href=\"https:\/\/vibromera.eu\/da\/glossary\/mode-shape\/\">tilstandsformer<\/a> \u2014 udg\u00f8r tilsammen systemets &#8220;modale parametre.&#8221; Sammen beskriver de de unikke m\u00e5der, en struktur naturligt vil tendere at vibrere p\u00e5, n\u00e5r den forstyrres. Denne viden er fundamental: den lader ingeni\u00f8rer designe strukturer, der modst\u00e5r dynamiske kr\u00e6fter, og den lader dem diagnosticere og l\u00f8se tilb\u00f8jelige vibrationsproblemer ved at afsl\u00f8re pr\u00e6cis hvilken naturlig frekvens, der bliver aktiveret. Hvor en <a href=\"https:\/\/vibromera.eu\/da\/glossary\/spectrum\/\">vibrationsspektrum<\/a> fort\u00e6ller dig, hvilke frekvenser en maskine i gang producerer, fort\u00e6ller modalanalyse dig, hvilke frekvenser strukturen er disponeret til at forst\u00e6rke \u2014 og denne skelnen er n\u00f8glen til at forst\u00e5 <a href=\"https:\/\/vibromera.eu\/da\/glossary\/resonance\/\">resonans<\/a>.<\/p>\n<h2>1. M\u00e5ls\u00e6tningen: Identifikation af modale parametre<\/h2>\n<p>Enhver struktur har et unikt s\u00e6t af modale parametre, der er fastsat af dens fysiske sammens\u00e6tning \u2014 dens masse, dens stivhed og dens d\u00e6mpning. Form\u00e5let med modalanalyse er at fastsl\u00e5 disse parametre:<\/p>\n<ul>\n<li><strong>Naturlige frekvenser (resonansfrekvenser):<\/strong> de specifikke frekvenser, ved hvilke strukturen vibrerer med den st\u00f8rste amplitude, n\u00e5r den exciteres. Enhver virkelig struktur har mange af dem, stigende i en r\u00e6kke.<\/li>\n<li><strong>D\u00e6mpningsforhold:<\/strong> et m\u00e5l for, hvor hurtigt vibrationerne ved hver mode d\u00e6mpes \u2014 med andre ord, hvor meget energi strukturen spreder. Let d\u00e6mpning betyder en h\u00f8j, smal resonanstop; kraftig d\u00e6mpning betyder en lav, bred en.<\/li>\n<li><strong>Mode shapes:<\/strong> det karakteristiske deformationsm\u00f8nster, som strukturen antager, n\u00e5r den vibrerer ved en af sine naturlige frekvenser. Hver naturlig frekvens har sit eget tilsvarende modeform \u2014 en f\u00f8rste b\u00f8jningsmode, en vridningsmode og s\u00e5 videre.<\/li>\n<\/ul>\n<p>Med disse tre st\u00f8rrelses p\u00e5 h\u00e5nden kan en ingeni\u00f8r forudsige, hvordan strukturen vil reagere p\u00e5 stort set enhver dynamisk belastning, den m\u00f8der under drift, og kan forudse problemer, f\u00f8r de bygges ind i hardwaren.<\/p>\n<h3>Hvorfor de tre parametre arbejder sammen<\/h3>\n<p>En enkelt parameter er ikke nok i sig selv. En naturlig frekvens fort\u00e6ller dig <em>hvor<\/em> en resonans ligger p\u00e5 frekvensakslen; d\u00e6mpningsforholdet fort\u00e6ller dig <em>hvor alvorlig<\/em> det vil v\u00e6re, hvis det exciteres; og modeformen fort\u00e6ller dig <em>hvor p\u00e5 strukturen<\/em> bev\u00e6gelsen er st\u00f8rst \u2014 og derfor hvor en sensor vil se den, hvor en korrektion vil v\u00e6re mest effektiv, og hvor en <a href=\"https:\/\/vibromera.eu\/da\/glossary\/nodal-point\/\">knudepunkt<\/a> af n\u00e6sten nul bev\u00e6gelse sidder. Det er derfor, parametrene altid diskuteres som et s\u00e6t.<\/p>\n<h2>2. Typer af modalanalyse<\/h2>\n<p>Der er tre hovedveje til en konstruktions modalparametre: to eksperimentelle og \u00e9n rent beregningsbaseret.<\/p>\n<h3>1. Eksperimentel modal analyse (EMA)<\/h3>\n<p>EMA &#8212; t\u00e6t relateret til <a href=\"https:\/\/vibromera.eu\/da\/glossary\/bump-test\/\">bumptest<\/a> &#8212; m\u00e5ler konstruktionens respons p\u00e5 en kendt, kontrolleret indgangskraft. Det er standardmetoden til test af rigtig hardware. Arbejdsgangen forl\u00f8ber s\u00e5ledes:<\/p>\n<ol>\n<li>Exciter konstruktionen med en m\u00e5lt kraft, som regel fra en <strong>instrumenteret slaghammer<\/strong> (spidsen b\u00e6rer en kraftsensor) eller fra en <strong>elektrodynamisk rystemaskine<\/strong>. Denne kontrollerede excitation er essensen af <a href=\"https:\/\/vibromera.eu\/da\/glossary\/impact-testing\/\">slagpr\u00f8vning<\/a>.<\/li>\n<li>M\u00e5l vibrationresponsen p\u00e5 \u00e9t eller flere steder med <a href=\"https:\/\/vibromera.eu\/da\/glossary\/accelerometer\/\">Accelerometre<\/a>.<\/li>\n<li>Compute the <a href=\"https:\/\/vibromera.eu\/da\/glossary\/frequency-response-function\/\">Frekvensresponsfunktion (FRF)<\/a> p\u00e5 hvert punkt &#8212; forholdet mellem udgangsvibration og indgangskraft over frekvensen.<\/li>\n<li>Brug specialiseret software til at tilpasse s\u00e6ttet af FRF&#8217;er og udtr\u00e6kke naturlige frekvenser, d\u00e6mpning og modusstasker. Softwaren kan derefter animere hver modusstakke, s\u00e5 analytikeren bogstaveligt talt ser, hvordan konstruktionen flekser ved hver naturlig frekvens.<\/li>\n<\/ol>\n<p>Fordi b\u00e5de indgangskraften og udgansresponsen m\u00e5les, giver EMA fuldt skalerede modalparametre &#8212; den mest komplette eksperimentelle beskrivelse, der er tilg\u00e6ngelig.<\/p>\n<h3>2. Operationel modalanalyse (OMA)<\/h3>\n<p>OMA bruges n\u00e5r anvendelse af en kontrolleret kraft er upraktisk eller umulig, eller n\u00e5r opf\u00f8rsel under reelle driftsbetingelser er det vigtige. Her m\u00e5les kun udgansresponsen &#8212; igen med accelerometre &#8212; mens konstruktionen exciteres af sine normale drifts- eller omgivelsesskrafter: vind p\u00e5 en bro, vejinput til en bilkrop eller arbejdskrefter i en k\u00f8rende maskine. Avancerede algoritmer gendanner derefter modalparametre fra responsdatas\u00e6t alene. Det er en mere indviklet tilgang, og modusstakserne kommer udskaleret ud, men for store i-brug-konstruktioner er det ofte den eneste praktiske mulighed. OMA er begrebsligt en n\u00e6r f\u00e6tter til <a href=\"https:\/\/vibromera.eu\/da\/glossary\/ods-analysis\/\">driftsvindingstaksanalyse (ODS)<\/a>, dog beskriver ODS, hvordan en konstruktion faktisk bev\u00e6ger sig under en given driftstilstand, i stedet for at udtr\u00e6kke dens underliggende modes.<\/p>\n<h3>3. Analytisk modalanalyse (FEA)<\/h3>\n<p>Dette er den rent teoretiske vej, bygget p\u00e5 en computermodel &#8212; mest almindeligt <strong>Finite Element-analyse (FEA)<\/strong>. Ingeni\u00f8rer skaber en virtuel model af konstruktionen, og softwaren forudsiger dens modalparametre f\u00f8r noget metal sk\u00e6res. EMA udf\u00f8res hyppigt derefter for at validere og raffinere FEA-modellen, lukke sl\u00f8jfen mellem forudsigelse og m\u00e5ling, s\u00e5 fremtidige &#8220;hvad-hvis&#8221;-studier p\u00e5 modellen kan stoles p\u00e5.<\/p>\n<h2>3. Anvendelser af modalanalyse<\/h2>\n<ul>\n<li><strong>Fejlfinding af resonansproblemer:<\/strong> den langt mest almindelige anvendelse. N\u00e5r en maskine vibrerer for meget, afsl\u00f8rer modalanalyse, om en strukturel naturlig frekvens drives af en driftskraft, s\u00e5som k\u00f8rehastighed eller <a href=\"https:\/\/vibromera.eu\/da\/glossary\/blade-passing-frequency\/\">bladpassagefrekvens<\/a>.<\/li>\n<li><strong>Designvalidering:<\/strong> ingeni\u00f8rer bekr\u00e6fter, at en ny produkts naturlige frekvenser holdes klare af kendte excitationsfrekvenser &#8212; motorens RPM, bladpassage, tandudvekslingsfriktation &#8212; s\u00e5 resonans aldrig bliver designet ind.<\/li>\n<li><strong>Strukturel \u00e6ndring:<\/strong> n\u00e5r en resonans er identificeret, underst\u00f8tter den modale model &#8220;hvad hvis&#8221;-analyser, der besvarer sp\u00f8rgsm\u00e5l som &#8220;hvor b\u00f8r en forstivning placeres for at flytte denne naturlige frekvens op?&#8221; f\u00f8r der foretages nogen \u00e6ndring.<\/li>\n<li><strong>Overv\u00e5gning af konstruktionens tilstand:<\/strong> et skift i modale parametre over tid kan signalere udvikling af skader \u2014 en voksende <a href=\"https:\/\/vibromera.eu\/da\/glossary\/shaft-crack\/\">akselrevne<\/a>, s\u00e6nker for eksempel stivheden og dermed falder en naturlig frekvens.<\/li>\n<\/ul>\n<h2>4. Modal analyse og resonansproblemer<\/h2>\n<p>Det praktiske resultat af alt dette er evnen til at skelne mellem to ting, der ligner hinanden p\u00e5 et spektrum, men kr\u00e6ver modsat behandling: et eksitationsproblem og et resonansproblem. Hvis h\u00f8j vibration kommer fra en stor eksitationskraft \u2014 for eksempel residual <a href=\"https:\/\/vibromera.eu\/da\/glossary\/unbalance\/\">ubalance<\/a> \u2014 ligger l\u00f8sningen i at reducere kraften. Hvis det kommer fra en konstruktion, hvis naturlige frekvens tilf\u00e6ldigvis sammenfaldende med en driftsfrekvens, hj\u00e6lper det d\u00e5rligt at reducere kraften; l\u00f8sningen er at flytte den naturlige frekvens ved at \u00e6ndre masse eller stivhed, eller ved at tilf\u00f8je d\u00e6mpning. Modal analyse er v\u00e6rkt\u00f8jet, der fort\u00e6ller dig, hvilken situation du er i. Forhold s\u00e5som <a href=\"https:\/\/vibromera.eu\/da\/glossary\/structural-resonance\/\">strukturel resonans<\/a> og <a href=\"https:\/\/vibromera.eu\/da\/glossary\/frame-resonance\/\">karmresonans<\/a> diagnosticeres p\u00e5 n\u00f8jagtig denne m\u00e5de, og p\u00e5 maskiner med variabel hastighed indg\u00e5r resultaterne ofte i et <a href=\"https:\/\/vibromera.eu\/da\/glossary\/campbell-diagram\/\">Campbell-diagram<\/a> der viser, hvor eksitationsordner krydser de naturlige frekvenser over hele hastighedsomr\u00e5det.<\/p>\n<h2>5. Feltm\u00e5lingers rolle<\/h2>\n<p>Komplet modal testing med mange m\u00e5lepunkter er en dedikeret aktivitet, men den p\u00e5lidelighedsingeni\u00f8r m\u00f8der den ofte i en mere kompakt form p\u00e5 v\u00e6rkstedet: en hurtig bump-test for at finde en formodet naturlig frekvens, f\u00f8r man binder sig til et balanseringsarbejde. Dette trin er vigtigt, fordi balansering af en rotor, hvis st\u00f8ttestruktur er i resonans, blot jager sin egen hale \u2014 responsen er domineret af strukturen, ikke af ubalancen. Et b\u00e6rbart to-kanals instrument s\u00e5som <a href=\"https:\/\/vibromera.eu\/da\/vare-2\/balanset-1\/\">Balanset-1A<\/a> giver en ingeni\u00f8r mulighed for at m\u00e5le vibration i maskinens egne lejer ved driftshastighed og bekr\u00e6fte, at k\u00f8rehastigheden ligger uden for en strukturel naturlig frekvens, s\u00e5 den efterf\u00f8lgende <a href=\"https:\/\/vibromera.eu\/da\/glossary\/feltbalancering\/\">feltafbalancering<\/a> faktisk h\u00e5ndterer den sande \u00e5rsag. N\u00e5r strukturen er udelukket, m\u00e5ler det samme instrument amplituden 1\u00d7 og fase, der kr\u00e6ves for at balancere rotoren og bekr\u00e6fte resultatet. P\u00e5 denne m\u00e5de forst\u00e6rker den brede disciplin af modal analyse og den fokuserede opgave med balansering hinanden: den f\u00f8rste sikrer, at du l\u00f8ser det rigtige problem, den anden l\u00f8ser det.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/da\/glossary\/\">\u2190 Tilbage til hovedindekset<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>En guide til modalanalyse, processen med at identificere en strukturs naturlige frekvenser, d\u00e6mpning og modeformer. L\u00e6r om eksperimentel (EMA) og operationel (OMA) modalanalyse.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[114,109],"tags":[],"class_list":["post-163","glossary","type-glossary","status-publish","hentry","category-analysis","category-glossary"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/da\/wp-json\/wp\/v2\/glossary\/163","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\/163\/revisions"}],"predecessor-version":[{"id":101290,"href":"https:\/\/vibromera.eu\/da\/wp-json\/wp\/v2\/glossary\/163\/revisions\/101290"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/da\/wp-json\/wp\/v2\/media?parent=163"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/da\/wp-json\/wp\/v2\/categories?post=163"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/da\/wp-json\/wp\/v2\/tags?post=163"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}