{"id":149,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/interference-diagram\/"},"modified":"2026-05-23T23:03:57","modified_gmt":"2026-05-23T23:03:57","slug":"interference-diagram","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/nb\/glossary\/interference-diagram\/","title":{"rendered":"Hva er et interferensdiagram? Kartlegging av kritisk hastighet"},"content":{"rendered":"<h1>Forst\u00e5 interferensdiagrammer<\/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\/nb\/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\/nb\/product\/balanset-1\/\" title=\"B\u00e6rbart balanseapparat og vibrasjonsanalysator 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 komplett sett med b\u00e6rbart balanseapparat og vibrasjonsanalysator\" 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\/nb\/product-category\/devices\/\" rel=\"tag\">Enheter<\/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\/nb\/product\/balanset-1\/\" title=\"B\u00e6rbart balanseapparat og vibrasjonsanalysator Balanset-1A\">B\u00e6rbart balanseapparat og vibrasjonsanalysator 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> + MVA (hvis aktuelt)<\/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=\"\/nb\/wp-json\/wp\/v2\/glossary\/149?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=\"Legg i handlekurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Legg i handlekurv\" 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=\"\/nb\/wp-json\/wp\/v2\/glossary\/149?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=\"Legg i handlekurv: \u00abPortable balancer &amp; Vibration analyzer Balanset-1A\u00bb\" rel=\"nofollow\" data-success_message=\"\u00abPortable balancer &amp; Vibration analyzer Balanset-1A\u00bb ble lagt til i handlekurven\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Legg i handlekurv<\/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\/nb\/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\/nb\/product\/vibration-sensor\/\" title=\"Vibrasjonssensor\">\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 vibrasjonssensor i n\u00e6rbilde\" 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\/nb\/product-category\/parts\/\" rel=\"tag\">Deler<\/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\/nb\/product\/vibration-sensor\/\" title=\"Vibrasjonssensor\">Vibrasjonssensor<\/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> + MVA (hvis aktuelt)<\/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=\"\/nb\/wp-json\/wp\/v2\/glossary\/149?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=\"Legg i handlekurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Legg i handlekurv\" 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=\"\/nb\/wp-json\/wp\/v2\/glossary\/149?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=\"Legg i handlekurv: \u00abVibration sensor\u00bb\" rel=\"nofollow\" data-success_message=\"\u00abVibration sensor\u00bb ble lagt til i handlekurven\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Legg i handlekurv<\/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\/nb\/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\/nb\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optisk sensor (lasertakometer)\">\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 (lasertakometer)\" 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\/nb\/product-category\/parts\/\" rel=\"tag\">Deler<\/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\/nb\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optisk sensor (lasertakometer)\">Optisk sensor (lasertakometer)<\/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> + MVA (hvis aktuelt)<\/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=\"\/nb\/wp-json\/wp\/v2\/glossary\/149?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=\"Legg i handlekurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Legg i handlekurv\" 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=\"\/nb\/wp-json\/wp\/v2\/glossary\/149?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=\"Legg i handlekurv: \u00abOptical Sensor (Laser Tachometer)\u00bb\" rel=\"nofollow\" data-success_message=\"\u00abOptical Sensor (Laser Tachometer)\u00bb ble lagt til i handlekurven\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Legg i handlekurv<\/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\/nb\/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\/nb\/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 rotorbalanseringssett: b\u00e6reveske, flerkanals signalbehandler, h\u00e5ndholdt analysator, magnetisk base, vibrasjonssensorer 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\/nb\/product-category\/devices\/\" rel=\"tag\">Enheter<\/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\/nb\/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> + MVA (hvis aktuelt)<\/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=\"\/nb\/wp-json\/wp\/v2\/glossary\/149?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=\"Legg i handlekurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Legg i handlekurv\" 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=\"\/nb\/wp-json\/wp\/v2\/glossary\/149?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=\"Legg i handlekurv: \u00abBalanset-4\u00bb\" rel=\"nofollow\" data-success_message=\"\u00abBalanset-4\u00bb ble lagt til i handlekurven\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Legg i handlekurv<\/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\/nb\/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\/nb\/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=\"Magnetisk base.\" 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\/nb\/product-category\/parts\/\" rel=\"tag\">Deler<\/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\/nb\/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> + MVA (hvis aktuelt)<\/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=\"\/nb\/wp-json\/wp\/v2\/glossary\/149?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=\"Legg i handlekurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Legg i handlekurv\" 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=\"\/nb\/wp-json\/wp\/v2\/glossary\/149?add-to-cart=1852\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1852\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1852\" data-product_sku=\"MS-1\" aria-label=\"Legg i handlekurv: \u00abMagnetic Stand Insize-60-kgf\u00bb\" rel=\"nofollow\" data-success_message=\"\u00abMagnetic Stand Insize-60-kgf\u00bb ble lagt til i handlekurven\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Legg i handlekurv<\/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\/nb\/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\/nb\/product\/reflective-tape\/\" title=\"Refleksb\u00e5nd\">\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=\"Refleksb\u00e5nd\" 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\/nb\/product-category\/parts\/\" rel=\"tag\">Deler<\/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\/nb\/product\/reflective-tape\/\" title=\"Refleksb\u00e5nd\">Refleksb\u00e5nd<\/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> + MVA (hvis aktuelt)<\/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=\"\/nb\/wp-json\/wp\/v2\/glossary\/149?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=\"Legg i handlekurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Legg i handlekurv\" 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=\"\/nb\/wp-json\/wp\/v2\/glossary\/149?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=\"Legg i handlekurv: \u00abReflective tape\u00bb\" rel=\"nofollow\" data-success_message=\"\u00abReflective tape\u00bb ble lagt til i handlekurven\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Legg i handlekurv<\/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\/nb\/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\/nb\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dynamisk balanseringsapparat &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-settet inneholder grensesnittenhet, sensorer, turteller 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\/nb\/product-category\/devices\/\" rel=\"tag\">Enheter<\/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\/nb\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dynamisk balanseringsapparat &quot;Balanset-1A&quot; OEM\">Dynamisk balanseringsapparat \"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> + MVA (hvis aktuelt)<\/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=\"\/nb\/wp-json\/wp\/v2\/glossary\/149?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=\"Legg i handlekurv\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Legg i handlekurv\" 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=\"\/nb\/wp-json\/wp\/v2\/glossary\/149?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=\"Legg i handlekurv: \u00abDynamic balancer \u201cBalanset-1A\u201d OEM\u00bb\" rel=\"nofollow\" data-success_message=\"\u00abDynamic balancer \u201cBalanset-1A\u201d OEM\u00bb ble lagt til i handlekurven\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Legg i handlekurv<\/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>En <strong>interferensdiagram<\/strong> er et grafisk verkt\u00f8y som brukes i <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/rotor-dynamics\/\">rotordynamikk<\/a> for \u00e5 identifisere de omdreiningstallene der en eksitasjonsfrekvens \u00abforstyrrer\u00bb \u2013 eller sammenfaller med \u2013 en av systemets <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/natural-frequency\/\">naturlige frekvenser<\/a>, og dermed legge til rette for <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/resonance\/\">resonans<\/a>. Ordet \u00abinterferens\u00bb beskriver det problematiske m\u00f8tet mellom en p\u00e5f\u00f8ringsfrekvens \u2014 fra <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/unbalance\/\">ubalanse<\/a>, bladpassering, tannhjulskontakt eller en annen kilde \u2014 med en egenfrekvens, et samspill som kan f\u00f8re til <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/vibration\/\">vibrasjon<\/a> til skadelige niv\u00e5er. I n\u00e6r tilknytning til <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/campbell-diagram\/\">Campbell-diagrammet<\/a>, gir et interferensdiagram svar p\u00e5 operat\u00f8rens sp\u00f8rsm\u00e5l: det viser krysspunktene og hastighetssonene som m\u00e5 unng\u00e5s eller passeres raskt.<\/p>\n<h2>1. Forholdet til Campbell-diagrammer<\/h2>\n<p>I daglig bruk blir begrepene \u00abinterferensdiagram\u00bb og \u00abCampbell-diagram\u00bb ofte brukt om hverandre, fordi de viser stort sett den samme informasjonen. Det er imidlertid en liten forskjell i vektleggingen.<\/p>\n<h3>Campbell-diagrammets vektlegging<\/h3>\n<ul>\n<li>Viser det komplette bildet av hvordan naturlige frekvenser varierer med hastighet<\/li>\n<li>Viser kurvene for egenfrekvens som kontinuerlige funksjoner av hastigheten.<\/li>\n<li>Brukes hovedsakelig til omfattende dynamisk analyse og konstruksjon av rotorer.<\/li>\n<\/ul>\n<h3>Interferensdiagram Vektlegging<\/h3>\n<ul>\n<li>Fokuserer oppmerksomheten p\u00e5 de spesifikke problemomr\u00e5dene \u2013 skj\u00e6ringspunktene<\/li>\n<li>Ofte legges det inn skraverte \u00abforbudte soner\u00bb rundt hver kritisk hastighet.<\/li>\n<li>Har et mer operativt fokus og legger vekt p\u00e5 hvilke hastighetsomr\u00e5der man b\u00f8r unng\u00e5.<\/li>\n<li>Kan omfatte flere \u00e5rsaker til ubalansen enn bare ubalansen i seg selv.<\/li>\n<\/ul>\n<p>Kort sagt beskriver et Campbell-diagram maskinens dynamikk; et interferensdiagram omdanner denne beskrivelsen til driftsregler.<\/p>\n<h2>2. Opprettelse av et interferensdiagram<\/h2>\n<p>Den er bygget opp p\u00e5 samme m\u00e5te som et Campbell-diagram, og deretter utvidet med operasjonell kontekst.<\/p>\n<h3>Grunnleggende elementer<\/h3>\n<ul>\n<li><strong>Horisontal akse:<\/strong> rotasjonshastighet (RPM eller Hz).<\/li>\n<li><strong>Vertikal akse:<\/strong> svingsfrekvens eller egenfrekvens (Hz eller CPM).<\/li>\n<li><strong>Naturfrekvenslinjer:<\/strong> som viser hvordan systemets egenfrekvenser endrer seg med hastigheten.<\/li>\n<li><strong>Linjer i eksitasjonsrekkef\u00f8lge:<\/strong> diagonale linjer for 1X, 2X, 3X og andre eksitasjonskilder.<\/li>\n<\/ul>\n<h3>Tilleggsfunksjoner<\/h3>\n<ul>\n<li><strong>Kryssingspunkter er markert:<\/strong> <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/critical-speed\/\">kritiske hastigheter<\/a> tydelig merket med symboler eller merknader.<\/li>\n<li><strong>Fartsbegrensede soner:<\/strong> Skyggelagte b\u00e5nd rundt hver kritiske hastighet som viser omr\u00e5der som skal unng\u00e5s<\/li>\n<li><strong>Driftshastighetsomr\u00e5de:<\/strong> Tydelig angitt, ofte som et vertikalt b\u00e5nd eller et uthevet omr\u00e5de<\/li>\n<li><strong>Omr\u00e5der med rask bevegelse:<\/strong> hastighetsomr\u00e5der som skal gjennoml\u00f8pes raskt under oppstart og nedstengning.<\/li>\n<li><strong>Flere eksitasjonskilder:<\/strong> linjer for <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/blade-passing-frequency\/\">bladpasseringsfrekvens<\/a>, <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/gear-mesh-frequency\/\">girinngrepsfrekvens<\/a>, og <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/bearing-fault-frequencies\/\">frekvenser for lagerfeil<\/a>.<\/li>\n<\/ul>\n<h2>3. Typer av forstyrrelser<\/h2>\n<p>Ett diagram kan avdekke flere ulike typer problematisk samspill, hver med sine egne karakteristiske trekk.<\/p>\n<h3>Synkron interferens (1X)<\/h3>\n<p>Den vanligste typen, der ubalanskraften per omdreining faller sammen med en egenfrekvens. Dette er den klassiske situasjonen med kritisk hastighet, og den m\u00e5 alle rotorer forholde seg til.<\/p>\n<h3>Harmonisk forstyrrelse (2X, 3X, \u2026)<\/h3>\n<p>H\u00f8yere <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/harmonics\/\">harmoniske<\/a> L\u00f8pehastigheten kan ogs\u00e5 utl\u00f8se resonanser. Vanlige kilder er blant annet:<\/p>\n<ul>\n<li><strong>2X:<\/strong> fra <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/misalignment\/\">feiljustering<\/a>, mekanisk slark eller asymmetrisk akselstivhet.<\/li>\n<li><strong>3 ganger, 4 ganger:<\/strong> Fra tannhjulskontakter, flerlagslagre eller strukturelle asymmetrier<\/li>\n<\/ul>\n<h3>Interferens mellom blad og vinge<\/h3>\n<p>I turbomaskiner kan bladpassasjefrekvensen \u2013 antall blad \u00d7 omdreiningstall \u2013 utl\u00f8se strukturelle svingningsmoduser. Diagrammet viser hvor bladpassasjelinjen krysser en egenfrekvens.<\/p>\n<h3>Subsynkron interferens<\/h3>\n<p>Fenomener som <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/oil-whirl\/\">oljevirvel<\/a>, vanligvis p\u00e5 0,43\u20130,48 ganger, skaper <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/sub-synchronous\/\">subsynkron<\/a> forstyrrelser som m\u00e5 identifiseres og h\u00e5ndteres, fordi de indikerer et stabilitetsproblem snarere enn en ren tvungen respons.<\/p>\n<h3>Interferens fra beatfrekvens<\/h3>\n<p>I koblede systemer, eller systemer med flere roterende elementer, <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/beating\/\">blandingsfrekvenser<\/a> som skyldes sm\u00e5 hastighetsforskjeller, kan for\u00e5rsake egne interferenser. Disse fremst\u00e5r som en langsom \u00f8kning og avtagning i amplituden snarere enn en fast topp, slik at de lett kan overses i et enkelt spektrum i likevekt, og oppdages best n\u00e5r diagrammet leses sammen med en tidsdomeneopptak.<\/p>\n<h2>4. Praktisk anvendelse i maskinutforming<\/h2>\n<h3>Programmer for designfasen<\/h3>\n<ol>\n<li><strong>Unng\u00e5else av kritisk hastighet:<\/strong> S\u00f8rg for at driftshastighetsomr\u00e5det ikke overlapper en interferanssone.<\/li>\n<li><strong>Kontroll av separasjonsmargin:<\/strong> sikre tilstrekkelige marginer \u2013 vanligvis \u00b115 % til \u00b130 % \u2013 rundt alle kritiske hastigheter.<\/li>\n<li><strong>H\u00e5ndtering av eksitasjonskilder:<\/strong> der det ikke er mulig \u00e5 unng\u00e5 forstyrrelser, b\u00f8r man redusere kildens styrke ved \u00e5 forbedre balanseringen, korrigere feiljusteringer og s\u00e5 videre.<\/li>\n<li><strong>Krav til demping:<\/strong> finne ut hvor det er lagt til <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/damping\/\">demping<\/a> er n\u00f8dvendig for \u00e5 regulere resonansresponsen.<\/li>\n<\/ol>\n<h3>Modifisering og feils\u00f8king<\/h3>\n<p>N\u00e5r en eksisterende maskin vibrerer for mye, er interferensdiagrammet til hjelp for analytikeren:<\/p>\n<ul>\n<li>avklare om problemet skyldes at man opererer for n\u00e6r en kritisk hastighet;<\/li>\n<li>vurdere foresl\u00e5tte tiltak \u2014 endringer i lagre, \u00f8kt masse, justering av stivhet;<\/li>\n<li>forutsi virkningen av hastighetsendringer eller drift med variabel hastighet;<\/li>\n<li>finne ut om det skyldes en uventet eksitasjonskilde.<\/li>\n<\/ul>\n<h2>5. Innf\u00f8ring av fartsbegrensede soner<\/h2>\n<p>Det som i st\u00f8rst grad skiller et interferensdiagram fra et vanlig Campbell-diagram, er muligheten til \u00e5 definere soner med forbudt eller begrenset hastighet.<\/p>\n<h3>Bestemmelse av sonebredde<\/h3>\n<p>Hvor bredt hvert forbudt b\u00e5nd m\u00e5 v\u00e6re, avhenger av flere faktorer:<\/p>\n<ul>\n<li><strong>Systemdemping:<\/strong> Lav demping krever bredere soner; h\u00f8y demping tillater smalere soner.<\/li>\n<li><strong>Svingningsamplitude:<\/strong> Kraftigere kilder krever bredere sikkerhetsavstander.<\/li>\n<li><strong>Operasjonelle konsekvenser:<\/strong> kritisk utstyr krever mer konservative, bredere soner.<\/li>\n<li><strong>Typiske verdier:<\/strong> \u00b115 % for godt dempede systemer, \u00b120\u201330 % for d\u00e5rlig dempede systemer.<\/li>\n<\/ul>\n<h3>Driftsprosedyrer<\/h3>\n<p>Ut fra diagrammet utarbeides driftsregler:<\/p>\n<ul>\n<li><strong>Kontinuerlig drift tillatt:<\/strong> hastighetsomr\u00e5der uten forstyrrelser.<\/li>\n<li><strong>Det kreves hurtig forflytning:<\/strong> forbudte soner som m\u00e5 passeres raskt under oppstart og nedstengning.<\/li>\n<li><strong>Strengt forbudt:<\/strong> Alvorlige resonanssoner der drift aldri er tillatt<\/li>\n<\/ul>\n<h2>6. Eksempel: En dampturbin<\/h2>\n<p>Tenk deg en dampturbin med f\u00f8lgende egenskaper:<\/p>\n<ul>\n<li><strong>Driftshastighet:<\/strong> 3000 o\/min (50 Hz).<\/li>\n<li><strong>F\u00f8rste kritiske hastighet:<\/strong> 2400 o\/min (40 Hz).<\/li>\n<li><strong>Andre kritiske hastighet:<\/strong> 4200 o\/min (70 Hz).<\/li>\n<li><strong>Antall blader:<\/strong> 60.<\/li>\n<li><strong>Bladets svingfrekvens ved 3000 o\/min:<\/strong> 60 \u00d7 50 Hz = 3000 Hz.<\/li>\n<\/ul>\n<h3>Hva diagrammet viser<\/h3>\n<ul>\n<li><strong>1X-linjen krysser den f\u00f8rste egenfrekvensen:<\/strong> Kritisk hastighet ved 2400 o\/min \u2013 Forbudt sone: 2040\u20132760 o\/min (\u00b115%)<\/li>\n<li><strong>1X-linjen krysser den andre egenfrekvensen:<\/strong> kritisk hastighet p\u00e5 4200 o\/min \u2013 dette er ikke noe problem, siden driftshastigheten ligger godt under dette.<\/li>\n<li><strong>Driftshastighet (3000 o\/min):<\/strong> ligger trygt mellom de to kritiske hastighetene med god sikkerhetsmargin.<\/li>\n<li><strong>Frekvens for bladpassering:<\/strong> ved 3000 Hz, ingen interferens med strukturmoduser i driftsomr\u00e5det.<\/li>\n<\/ul>\n<h3>Operative retningslinjer<\/h3>\n<ul>\n<li>Under oppstart, akselerer gjennom 2040\u20132760 o\/min-omr\u00e5det p\u00e5 under 30 sekunder<\/li>\n<li>Kontinuerlig drift mellom 2800-3200 o\/min er akseptabelt<\/li>\n<li>Ikke fors\u00f8k \u00e5 bruke kontinuerlig mellom 2040\u20132760 o\/min.<\/li>\n<\/ul>\n<p>Beregningene som fastsl\u00e5r en slik f\u00f8rste kritisk b\u00f8yehastighet, kan estimeres p\u00e5 forh\u00e5nd ved hjelp av en <a href=\"https:\/\/vibromera.eu\/nb\/calculators\/rotor-critical-speed\/\">Kalkulator for kritisk rotorhastighet<\/a>, og alle kryssingene mellom ordrelinjene kan plottes med en <a href=\"https:\/\/vibromera.eu\/nb\/calculators\/campbell-diagram-calculator\/\">Campbell-diagramkalkulator<\/a> f\u00f8r testkj\u00f8ringen starter.<\/p>\n<h2>7. Videreg\u00e5ende hensyn<\/h2>\n<h3>Temperatureffekter<\/h3>\n<p>Noen interferensdiagrammer inneholder flere kurver som viser hvordan egenfrekvensene endrer seg med temperaturen, fordi <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/thermal-bow\/\">termisk vekst<\/a> endrer b\u00e5de stivhet og lageregenskaper. Kritiske hastigheter kan forskyve seg etter hvert som maskinen varmes opp fra kaldstart til stabil drift, og det er derfor en forbudssone som er definert for en kald maskin, noen ganger utvides for \u00e5 omfatte det omr\u00e5det den kritiske hastigheten beveger seg gjennom under oppvarmingen.<\/p>\n<h3>Last inn effekter<\/h3>\n<p>For maskiner der prosessbelastningen har stor innvirkning p\u00e5 lagerstivheten eller rotorens gjennomb\u00f8yning, kan diagrammet inneholde en rekke kurver for ulike belastningsforhold.<\/p>\n<h3>Koblede systemer<\/h3>\n<p>N\u00e5r flere rotorer er koblet sammen \u2013 motor-pumpe-enheter, turbin-generator-enheter \u2013 m\u00e5 diagrammet ogs\u00e5 ta hensyn til de koblede <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/torsional-vibration\/\">torsjonell<\/a> og <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/lateral-vibration\/\">sideveis<\/a> moduser, som kan gi opphav til ytterligere kritiske hastigheter som ingen av maskinene viser hver for seg.<\/p>\n<h2>8. Opprette et interferensdiagram<\/h2>\n<h3>Fra analytiske modeller<\/h3>\n<ol>\n<li>Utvikle en finitelementmodell av rotor-lagersystemet.<\/li>\n<li>Beregn egenfrekvensene ved flere hastigheter.<\/li>\n<li>Plott naturfrekvenskurvene mot hastigheten.<\/li>\n<li>Legg inn linjene for eksitasjonsrekkef\u00f8lge (1X, 2X, bladpassering osv.).<\/li>\n<li>Merk av krysspunktene og avgrens de forbudte sonene.<\/li>\n<li>Angi driftshastighetsomr\u00e5det og fremgangsm\u00e5tene.<\/li>\n<\/ol>\n<h3>Fra eksperimentelle data<\/h3>\n<ol>\n<li>Utf\u00f8re <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/run-up-analysis\/\">oppstart<\/a> og <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/coastdown-analysis\/\">kystned<\/a> tester med vibrasjonsoverv\u00e5king.<\/li>\n<li>Generere <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/waterfall-plot\/\">fossefalltomter<\/a> eller <a href=\"https:\/\/vibromera.eu\/nb\/glossary\/bode-plot\/\">Bode-plott<\/a>.<\/li>\n<li>Identifiser stedene for kritisk hastighet ut fra amplitudetopper og faseforskyvninger.<\/li>\n<li>Lag et svingningsdiagram der de observerte kritiske hastighetene er markert.<\/li>\n<li>Fastsett empiriske forbudssoner ut fra de m\u00e5lte vibrasjonsniv\u00e5ene.<\/li>\n<\/ol>\n<p>Den eksperimentelle tiln\u00e6rmingen avhenger av \u00e5 registrere rene amplitude- og<a href=\"https:\/\/vibromera.eu\/nb\/glossary\/phase\/\">fase<\/a> data mens hastigheten endres gjennom hver resonans. En b\u00e6rbar tokanalsanalysator som for eksempel <a href=\"https:\/\/vibromera.eu\/nb\/produkt\/balanset-1\/\">Balanset-1A<\/a>, ved \u00e5 registrere 1\u00d7 amplitude og fase mot en turtellerreferanse under oppkj\u00f8ring eller utkj\u00f8ring, fanger n\u00f8yaktig opp toppene og fasevendingene som fastsl\u00e5r en kritisk hastighet p\u00e5 en ekte maskin \u2013 og gj\u00f8r dermed et teoretisk diagram om til et diagram som er valideret gjennom m\u00e5linger.<\/p>\n<h2>9. Fordeler for drift og vedlikehold<\/h2>\n<p>Et godt utarbeidet interferensdiagram er et arbeidsdokument, ikke bare et designprodukt:<\/p>\n<ul>\n<li><strong>Tydelige driftsgrenser:<\/strong> en visuell fremstilling av sikre og usikre hastighetsomr\u00e5der.<\/li>\n<li><strong>Prosedyrer for oppstart og nedstengning:<\/strong> den angir hastighetene man b\u00f8r holde for \u00e5 komme seg raskt frem.<\/li>\n<li><strong>Drift med variabel hastighet:<\/strong> den angir de tillatte hastighetsomr\u00e5dene for en frekvensomformer.<\/li>\n<li><strong>Feils\u00f8kingsverkt\u00f8y:<\/strong> Det hjelper med \u00e5 avgj\u00f8re om et vibrasjonsproblem er hastighetsavhengig.<\/li>\n<li><strong>Planlegging av endringer:<\/strong> det viser virkningen av en foresl\u00e5tt endring f\u00f8r den gjennomf\u00f8res.<\/li>\n<li><strong>Oppl\u00e6ringshjelpemiddel:<\/strong> Det er en utmerket m\u00e5te \u00e5 l\u00e6re om en maskins dynamiske oppf\u00f8rsel p\u00e5.<\/li>\n<\/ul>\n<p>For kritisk roterende maskineri er interferensdiagrammet en viktig referanse som b\u00f8r v\u00e6re tilgjengelig for b\u00e5de operat\u00f8rer, vedlikeholdsteknikere og ingeni\u00f8rer \u2013 slik at alle forst\u00e5r maskinens dynamiske egenskaper og holder den i drift innenfor sikre hastighetsomr\u00e5der.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/nb\/glossary\/\">\u2190 Tilbake til hovedindeksen<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>L\u00e6r om interferensdiagrammer, grafiske verkt\u00f8y som identifiserer hastighetsomr\u00e5der der eksitasjonsfrekvenser forstyrrer naturlige frekvenser, noe som for\u00e5rsaker resonans i roterende maskineri.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,110],"tags":[],"class_list":["post-149","glossary","type-glossary","status-publish","hentry","category-glossary","category-vibration-diagnostics"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/glossary\/149","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/glossary\/149\/revisions"}],"predecessor-version":[{"id":101435,"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/glossary\/149\/revisions\/101435"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/media?parent=149"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/categories?post=149"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/nb\/wp-json\/wp\/v2\/tags?post=149"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}