{"id":255,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/steam-whirl\/"},"modified":"2026-05-23T22:54:27","modified_gmt":"2026-05-23T22:54:27","slug":"steam-whirl","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/sv\/glossary\/steam-whirl\/","title":{"rendered":"Vad \u00e4r \u00e5ngvirvel? Aerodynamisk instabilitet i turbiner"},"content":{"rendered":"<h1>F\u00f6rst\u00e5 \u00e5ngvirvel i turbomaskiner<\/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\/sv\/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\/sv\/product\/balanset-1\/\" title=\"Portabel balanserare &amp; 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 komplett kit med portabel balanserare och 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\/sv\/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\/sv\/product\/balanset-1\/\" title=\"Portabel balanserare &amp; vibrationsanalysator Balanset-1A\">Portabel balanserare &amp; 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 (om till\u00e4mpligt)<\/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=\"\/sv\/wp-json\/wp\/v2\/glossary\/255?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=\"L\u00e4gg till i varukorg\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"L\u00e4gg till i varukorg\" 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=\"\/sv\/wp-json\/wp\/v2\/glossary\/255?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\u00e4gg till i varukorgen: \u201dPortable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"&quot;Portable balancer &amp; Vibration analyzer Balanset-1A&quot; har lagts till i din varukorg\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">L\u00e4gg till i varukorg<\/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\/sv\/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\/sv\/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 - n\u00e4rbild\" 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\/sv\/product-category\/parts\/\" rel=\"tag\">Delar<\/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\/sv\/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 (om till\u00e4mpligt)<\/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=\"\/sv\/wp-json\/wp\/v2\/glossary\/255?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=\"L\u00e4gg till i varukorg\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"L\u00e4gg till i varukorg\" 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=\"\/sv\/wp-json\/wp\/v2\/glossary\/255?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\u00e4gg till i varukorgen: \u201dVibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"&quot;Vibration sensor&quot; har lagts till i din varukorg\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">L\u00e4gg till i varukorg<\/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\/sv\/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\/sv\/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\/sv\/product-category\/parts\/\" rel=\"tag\">Delar<\/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\/sv\/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> + moms (om till\u00e4mpligt)<\/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=\"\/sv\/wp-json\/wp\/v2\/glossary\/255?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=\"L\u00e4gg till i varukorg\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"L\u00e4gg till i varukorg\" 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=\"\/sv\/wp-json\/wp\/v2\/glossary\/255?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\u00e4gg till i varukorgen: \u201dOptical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"&quot;Optical Sensor (Laser Tachometer)&quot; har lagts till i din varukorg\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">L\u00e4gg till i varukorg<\/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\/sv\/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\/sv\/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 rotorbalanseringssats: b\u00e4rv\u00e4ska, flerkanalig signalkonditionerare, handh\u00e5llen analysator, magnetisk bas, vibrationssensorer och spiralformade kablar.\" 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\/sv\/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\/sv\/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 (om till\u00e4mpligt)<\/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=\"\/sv\/wp-json\/wp\/v2\/glossary\/255?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=\"L\u00e4gg till i varukorg\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"L\u00e4gg till i varukorg\" 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=\"\/sv\/wp-json\/wp\/v2\/glossary\/255?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\u00e4gg till i varukorgen: \u201dBalanset-4\u201d\" rel=\"nofollow\" data-success_message=\"&quot;Balanset-4&quot; har lagts till i din varukorg\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">L\u00e4gg till i varukorg<\/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\/sv\/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\/sv\/product\/magnet-stand\/\" title=\"Magnetiskt 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=\"Magnetf\u00e4ste.\" 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\/sv\/product-category\/parts\/\" rel=\"tag\">Delar<\/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\/sv\/product\/magnet-stand\/\" title=\"Magnetiskt stativ Insize-60-kgf\">Magnetiskt 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 (om till\u00e4mpligt)<\/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=\"\/sv\/wp-json\/wp\/v2\/glossary\/255?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=\"L\u00e4gg till i varukorg\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"L\u00e4gg till i varukorg\" 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=\"\/sv\/wp-json\/wp\/v2\/glossary\/255?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=\"L\u00e4gg till i varukorgen: \u201dMagnetic Stand Insize-60-kgf\u201d\" rel=\"nofollow\" data-success_message=\"&quot;Magnetic Stand Insize-60-kgf&quot; har lagts till i din varukorg\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">L\u00e4gg till i varukorg<\/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\/sv\/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\/sv\/product\/reflective-tape\/\" title=\"Reflekterande tejp\">\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=\"Reflekterande tejp\" 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\/sv\/product-category\/parts\/\" rel=\"tag\">Delar<\/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\/sv\/product\/reflective-tape\/\" title=\"Reflekterande tejp\">Reflekterande tejp<\/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 (om till\u00e4mpligt)<\/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=\"\/sv\/wp-json\/wp\/v2\/glossary\/255?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=\"L\u00e4gg till i varukorg\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"L\u00e4gg till i varukorg\" 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=\"\/sv\/wp-json\/wp\/v2\/glossary\/255?add-to-cart=2329\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_2329\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"2329\" data-product_sku=\"rt-1\" aria-label=\"L\u00e4gg till i varukorgen: \u201dReflective tape\u201d\" rel=\"nofollow\" data-success_message=\"&quot;Reflective tape&quot; har lagts till i din varukorg\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">L\u00e4gg till i varukorg<\/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\/sv\/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\/sv\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dynamisk balanserare &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-kit, inneh\u00e5ll med gr\u00e4nssnittsenhet, givare, varvr\u00e4knare och tillbeh\u00f6r\" 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\/sv\/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\/sv\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dynamisk balanserare &quot;Balanset-1A&quot; OEM\">Dynamisk balanserare \"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 (om till\u00e4mpligt)<\/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=\"\/sv\/wp-json\/wp\/v2\/glossary\/255?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=\"L\u00e4gg till i varukorg\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"L\u00e4gg till i varukorg\" 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=\"\/sv\/wp-json\/wp\/v2\/glossary\/255?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\u00e4gg till i varukorgen: \u201dDynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"&quot;Dynamic balancer \u201cBalanset-1A\u201d OEM&quot; har lagts till i din varukorg\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">L\u00e4gg till i varukorg<\/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>\u00c5ngvirvel<\/strong> \u2014 \u00e4ven kallat aerodynamisk tv\u00e4rkopplingsinstabilitet eller seal whirl \u2014 \u00e4r en <a href=\"https:\/\/vibromera.eu\/sv\/glossary\/self-excited-vibration\/\">sj\u00e4lvexciterad vibration<\/a> som uppst\u00e5r i \u00e5ng- och gasturbiner n\u00e4r aerodynamiska krafter inuti labyrintt\u00e4tningar, bladspetsavst\u00e5nd eller andra ringformade kanaler ger upphov till en destabiliserande tangentiell kraft p\u00e5 <a href=\"https:\/\/vibromera.eu\/sv\/glossary\/rotor\/\">rotor<\/a>. Gilla <a href=\"https:\/\/vibromera.eu\/sv\/glossary\/oil-whirl\/\">oljevirvel<\/a> i hydrodynamiska lager \u00e4r det en form av <a href=\"https:\/\/vibromera.eu\/sv\/glossary\/rotor-instability\/\">rotorinstabilitet<\/a> d\u00e4r energi kontinuerligt utvinns ur det j\u00e4mna fl\u00f6det av \u00e5nga eller gas och omvandlas till axelns omloppsr\u00f6relse. Resultatet blir sv\u00e4ngningar med stor amplitud <a href=\"https:\/\/vibromera.eu\/sv\/glossary\/sub-synchronous\/\">subsynkron<\/a> <a href=\"https:\/\/vibromera.eu\/sv\/glossary\/vibration\/\">vibrationer<\/a> vid en frekvens n\u00e4ra en av rotorns <a href=\"https:\/\/vibromera.eu\/sv\/glossary\/natural-frequency\/\">naturliga frekvenser<\/a> \u2014 och om det inte uppt\u00e4cks och \u00e5tg\u00e4rdas snabbt kan det leda till att maskinen drabbas av ett katastrofalt haveri.<\/p>\n<h2>1. Fysikalisk mekanism<\/h2>\n<p>\u00c5ngvirvlar \u00e4r i grunden ett samspel mellan v\u00e4tska och struktur i de tr\u00e5nga spalterna i turbinpackningarna. De utvecklas i tre sammanh\u00e4ngande steg.<\/p>\n<h3>Spel i labyrintt\u00e4tningar<\/h3>\n<ul>\n<li>\u00c5nga eller gas str\u00f6mmar genom smala ringformade passager mellan roterande och station\u00e4ra t\u00e4tningskomponenter<\/li>\n<li>En stor tryckskillnad verkar p\u00e5 t\u00e4tningarna \u2013 ofta 50\u2013200 bar i stora maskiner.<\/li>\n<li>De radiella spelrummen \u00e4r sm\u00e5, vanligtvis 0,2\u20130,5 mm.<\/li>\n<li>Str\u00f6mningen f\u00e5r en virvel, en tangentiell hastighetskomponent, n\u00e4r den passerar genom t\u00e4tningens t\u00e4nder.<\/li>\n<\/ul>\n<h3>Aerodynamisk tv\u00e4rkoppling<\/h3>\n<p>Instabiliteten uppst\u00e5r i det \u00f6gonblick som rotorn f\u00f6rskjuts fr\u00e5n sitt mittl\u00e4ge:<\/p>\n<ul>\n<li>Spelet blir asymmetriskt \u2013 mindre p\u00e5 ena sidan, st\u00f6rre p\u00e5 den andra.<\/li>\n<li>Fl\u00f6det och tryckf\u00f6rdelningen runt t\u00e4tningen blir oj\u00e4mn.<\/li>\n<li>Den aerodynamiska nettokraften f\u00e5r en <em>tangentiell<\/em> komponent som verkar vinkelr\u00e4tt mot f\u00f6rskjutningen ist\u00e4llet f\u00f6r att motverka den.<\/li>\n<li>Den tangentiella kraften upptr\u00e4der som en destabiliserande \u201dnegativ <a href=\"https:\/\/vibromera.eu\/sv\/glossary\/stiffness\/\">styvhet<\/a>\u201d, vilket driver rotorn l\u00e4ngs dess bana ist\u00e4llet f\u00f6r tillbaka mot centrum.<\/li>\n<\/ul>\n<h3>Sj\u00e4lvexciterad vibration<\/h3>\n<ul>\n<li>Den tangentiella kraften driver rotorn in i en fram\u00e5triktad <a href=\"https:\/\/vibromera.eu\/sv\/glossary\/whirl\/\">virvel<\/a> orbit.<\/li>\n<li>Omloppsfrekvensen stabiliseras n\u00e4ra en egenfrekvens och \u00e4r d\u00e4rmed subsynkron.<\/li>\n<li>Energi utvinns kontinuerligt ur \u00e5ngfl\u00f6det f\u00f6r att uppr\u00e4tth\u00e5lla r\u00f6relsen.<\/li>\n<li>Amplituden \u00f6kar tills den begr\u00e4nsas av det tillg\u00e4ngliga spelet \u2013 eller tills maskinen havererar.<\/li>\n<\/ul>\n<h2>2. F\u00f6rh\u00e5llanden som fr\u00e4mjar \u00e5ngvirvlar<\/h2>\n<p>Huruvida en viss maskin blir instabil beror p\u00e5 balansen mellan destabiliserande t\u00e4tningskrafter och den tillg\u00e4ngliga d\u00e4mpningen <a href=\"https:\/\/vibromera.eu\/sv\/glossary\/damping\/\">d\u00e4mpning<\/a>. Tre grupper av faktorer tippar den balansen.<\/p>\n<h3>Geometriska faktorer<\/h3>\n<ul>\n<li><strong>Smala t\u00e4tningsspalter:<\/strong> Mindre avst\u00e5nd ger starkare aerodynamiska krafter.<\/li>\n<li><strong>L\u00e5nga t\u00e4tningsl\u00e4ngder:<\/strong> fler t\u00e4tningst\u00e4nder eller l\u00e4ngre t\u00e4tningssektioner \u00f6kar den destabiliserande kraften.<\/li>\n<li><strong>H\u00f6g virvelhastighet:<\/strong> fl\u00f6det som str\u00f6mmar in i t\u00e4tningen med en stor tangentiell komponent \u00e4r s\u00e4rskilt destabiliserande.<\/li>\n<li><strong>Stora t\u00e4tningsdiametrar:<\/strong> En st\u00f6rre radie f\u00f6rst\u00e4rker det vridmoment som uppst\u00e5r till f\u00f6ljd av den aerodynamiska kraften.<\/li>\n<\/ul>\n<h3>Driftsf\u00f6rh\u00e5llanden<\/h3>\n<ul>\n<li><strong>Stora tryckskillnader:<\/strong> Ett st\u00f6rre tryckfall \u00f6ver t\u00e4tningen \u00f6kar kraften.<\/li>\n<li><strong>H\u00f6g rotorhastighet:<\/strong> b\u00e5de centrifugalkraften och virvelhastigheten \u00f6kar med hastigheten.<\/li>\n<li><strong>L\u00e5g lagerd\u00e4mpning:<\/strong> Otillr\u00e4cklig d\u00e4mpning kan inte motverka t\u00e4tningskrafterna.<\/li>\n<li><strong>Vid l\u00e5g belastning:<\/strong> L\u00e5ga lagerbelastningar minskar den effektiva d\u00e4mpningen och <a href=\"https:\/\/vibromera.eu\/sv\/glossary\/journal-bearing\/\">axeltappslager<\/a> kan ge.<\/li>\n<\/ul>\n<h3>Rotorns egenskaper<\/h3>\n<ul>\n<li><strong>Flexibla rotorer:<\/strong> a <a href=\"https:\/\/vibromera.eu\/sv\/glossary\/flexible-rotor\/\">flexibel rotor<\/a> ligger \u00f6ver sin <a href=\"https:\/\/vibromera.eu\/sv\/glossary\/critical-speed\/\">kritiska hastigheter<\/a> \u00e4r mer mottaglig.<\/li>\n<li><strong>System med l\u00e5g d\u00e4mpning:<\/strong> Om d\u00e4mpningen i konstruktionen eller lagren \u00e4r minimal finns det inget som kan ta upp energin.<\/li>\n<li><strong>H\u00f6gt f\u00f6rh\u00e5llande mellan l\u00e4ngd och diameter:<\/strong> Smala rotorer \u00e4r i sig mer ben\u00e4gna att bli instabila.<\/li>\n<\/ul>\n<h2>3. Diagnostiska k\u00e4nnetecken<\/h2>\n<h3>Vibrationssignatur<\/h3>\n<p>En \u00e5ngvirvel l\u00e4mnar ett karakteristiskt m\u00f6nster som <a href=\"https:\/\/vibromera.eu\/sv\/glossary\/vibration-analysis\/\">vibrationsanalys<\/a> kan k\u00e4nna igen med s\u00e4kerhet:<\/p>\n<table border=\"1\" style=\"width:100%; border-collapse:collapse;\">\n<tr>\n<th>Parameter<\/th>\n<th>Karakteristik<\/th>\n<\/tr>\n<tr>\n<td>Frekvens<\/td>\n<td>Subsynkron, vanligtvis 0,3\u20130,6 g\u00e5nger driftshastigheten, och g\u00e5r ofta i resonans med en egenfrekvens<\/td>\n<\/tr>\n<tr>\n<td>Amplitud<\/td>\n<td>H\u00f6g \u2014 ofta 5\u201320 g\u00e5nger h\u00f6gre \u00e4n den normala obalansvibrationen<\/td>\n<\/tr>\n<tr>\n<td>B\u00f6rjan<\/td>\n<td>Pl\u00f6tsligt, vid en viss hastighet eller ett visst tryck<\/td>\n<\/tr>\n<tr>\n<td>Hastighetsberoende<\/td>\n<td>Frekvensen kan l\u00e5sa sig och sluta f\u00f6lja hastighetsf\u00f6r\u00e4ndringar<\/td>\n<\/tr>\n<tr>\n<td>Bana<\/td>\n<td>Stor cirkul\u00e4r eller elliptisk, fram\u00e5triktad precession<\/td>\n<\/tr>\n<tr>\n<td>Spektrum<\/td>\n<td>Dominant subsynkron topp<\/td>\n<\/tr>\n<\/table>\n<h3>Differentiering fr\u00e5n andra instabiliteter<\/h3>\n<ul>\n<li><strong>j\u00e4mf\u00f6rt med oljevirvel\/oljepiska:<\/strong> \u00c5ngvirvlar uppst\u00e5r i turbiner med labyrintt\u00e4tningar, medan oljevirvlar uppst\u00e5r i glidlager <a href=\"https:\/\/vibromera.eu\/sv\/glossary\/journal-bearing\/\">glidlager<\/a>.<\/li>\n<li><strong>mot obalans:<\/strong> \u00e5ngvirveln \u00e4r subsynkron, medan <a href=\"https:\/\/vibromera.eu\/sv\/glossary\/imbalance\/\">obalans<\/a> \u00e4r en 1\u00d7 <a href=\"https:\/\/vibromera.eu\/sv\/glossary\/synchronous-vibration\/\">synkron<\/a> svar.<\/li>\n<li><strong>mot rub:<\/strong> \u00e5ngvirvel kan uppst\u00e5 utan n\u00e5gon fysisk kontakt, och dess frekvens \u00e4r mer stabil \u00e4n den oregelbundna vibrationen hos en <a href=\"https:\/\/vibromera.eu\/sv\/glossary\/rotor-rub\/\">rotor gnuggar<\/a>.<\/li>\n<\/ul>\n<h2>4. Metoder f\u00f6r f\u00f6rebyggande och begr\u00e4nsning<\/h2>\n<p>De flesta mot\u00e5tg\u00e4rderna riktar sig mot ett av tv\u00e5 m\u00e5l: att minska den destabiliserande virveln vid k\u00e4llan, eller att tillf\u00f6ra d\u00e4mpning s\u00e5 att rotorn kan absorbera den. T\u00e4tningskonstruktionen hanterar det f\u00f6rsta m\u00e5let, medan f\u00f6rb\u00e4ttringar av lagren och driftsgr\u00e4nserna hanterar det andra.<\/p>\n<h3>Modifieringar av t\u00e4tningsdesign<\/h3>\n<ul>\n<li><strong>Antivirvelanordningar (virvelbromsar):<\/strong> Fasta vingar eller avledare placerade uppstr\u00f6ms t\u00e4tningslisten avleder den tangentiella hastigheten fr\u00e5n det inkommande fl\u00f6det, vilket kraftigt minskar tv\u00e4rkopplingskraften. Detta \u00e4r den mest effektiva och vanligaste l\u00f6sningen.<\/li>\n<li><strong>T\u00e4tningar av bikaketyp:<\/strong> Genom att ers\u00e4tta de sl\u00e4ta labyrintkanalerna med en bikakestruktur skapas turbulens som bryter ner virvelenergin och \u00f6kar den effektiva d\u00e4mpningen i t\u00e4tningsomr\u00e5det; en teknik som \u00e4r mycket vanlig i moderna gasturbiner.<\/li>\n<li><strong>\u00d6kade t\u00e4tningsavst\u00e5nd:<\/strong> St\u00f6rre radiella spelrum minskar den aerodynamiska kraften, men detta sker p\u00e5 bekostnad av \u00f6kade l\u00e4ckage och s\u00e4nkt turbinverkningsgrad, varf\u00f6r detta vanligtvis endast \u00e4r en tillf\u00e4llig \u00e5tg\u00e4rd.<\/li>\n<li><strong>Spj\u00e4llt\u00e4tningar:<\/strong> specialkonstruerade t\u00e4tningar \u2013 fickd\u00e4mpart\u00e4tningar och t\u00e4tningar med h\u00e5lm\u00f6nster \u2013 som ger d\u00e4mpning samtidigt som de t\u00e4tar, vilket tillf\u00f6r en stabiliserande kraft som motverkar tv\u00e4rkopplingen.<\/li>\n<\/ul>\n<h3>F\u00f6rb\u00e4ttringar av lagersystemet<\/h3>\n<ul>\n<li><strong>\u00d6ka lagrets d\u00e4mpning:<\/strong> montera segmentglidlager eller installera en <a href=\"https:\/\/vibromera.eu\/sv\/glossary\/squeeze-film-damper\/\">tryckfilmsd\u00e4mpare<\/a>.<\/li>\n<li><strong>Lagrets f\u00f6rsp\u00e4nning:<\/strong> ans\u00f6kan <a href=\"https:\/\/vibromera.eu\/sv\/glossary\/preload\/\">f\u00f6rladdning<\/a> \u00f6kar b\u00e5de den effektiva styvheten och d\u00e4mpningen.<\/li>\n<li><strong>Optimerad lagerkonstruktion:<\/strong> val av lagertyp och konfiguration f\u00f6r maximal stabilitetsmarginal.<\/li>\n<\/ul>\n<h3>Driftskontroller<\/h3>\n<ul>\n<li><strong>Hastighetsbegr\u00e4nsningar:<\/strong> H\u00e5ll driftshastigheten under instabilitetsgr\u00e4nsen.<\/li>\n<li><strong>Laststyrning:<\/strong> Undvik att k\u00f6ra med l\u00e5g belastning, eftersom det minskar lagrens d\u00e4mpningsf\u00f6rm\u00e5ga.<\/li>\n<li><strong>Tryckreglering:<\/strong> minska tryckskillnaderna i t\u00e4tningarna d\u00e4r processen till\u00e5ter det.<\/li>\n<li><strong>Kontinuerlig \u00f6vervakning:<\/strong> i realtid <a href=\"https:\/\/vibromera.eu\/sv\/glossary\/condition-monitoring\/\">tillst\u00e5nds\u00f6vervakning<\/a> med s\u00e4rskilda larm f\u00f6r subsynkrona vibrationer.<\/li>\n<\/ul>\n<h2>5. Uppt\u00e4ckt och akuta insatser<\/h2>\n<h3>Tidiga varningstecken<\/h3>\n<ul>\n<li>Sm\u00e5 subsynkrona toppar som b\u00f6rjar synas i vibrationssignalen <a href=\"https:\/\/vibromera.eu\/sv\/glossary\/spectrum\/\">spektrum<\/a>.<\/li>\n<li>Intermittenta h\u00f6gfrekventa komponenter.<\/li>\n<li>En gradvis \u00f6kning av den totala vibrationsniv\u00e5n <a href=\"https:\/\/vibromera.eu\/sv\/glossary\/vibration-severity\/\">vibrationsniv\u00e5n<\/a> n\u00e4r hastigheten n\u00e4rmar sig tr\u00f6skelv\u00e4rdet.<\/li>\n<li>F\u00f6r\u00e4ndringar i <a href=\"https:\/\/vibromera.eu\/sv\/glossary\/orbit\/\">bana<\/a> form som registreras av n\u00e4rhetssensorer.<\/li>\n<\/ul>\n<h3>Omedelbara \u00e5tg\u00e4rder n\u00e4r \u00e5ngvirvel uppt\u00e4cks<\/h3>\n<ol>\n<li><strong>S\u00e4nk hastigheten:<\/strong> omedelbart s\u00e4nka hastigheten till under gr\u00e4nsv\u00e4rdet.<\/li>\n<li><strong>V\u00e4nta inte f\u00f6r l\u00e4nge:<\/strong> Amplituden kan v\u00e4xa fr\u00e5n acceptabel till destruktiv p\u00e5 30\u201360 sekunder<\/li>\n<li><strong>N\u00f6dstopp:<\/strong> st\u00e4nga av maskinen om hastighetsminskningen \u00e4r otillr\u00e4cklig eller om\u00f6jlig.<\/li>\n<li><strong>Dokumentera h\u00e4ndelsen:<\/strong> Registrera hastigheten vid start, frekvensen, toppamplituden och driftsf\u00f6rh\u00e5llandena.<\/li>\n<li><strong>Starta inte om:<\/strong> H\u00e5ll maskinen ur drift tills den bakomliggande orsaken har identifierats och \u00e5tg\u00e4rdats.<\/li>\n<\/ol>\n<h3>Var f\u00e4ltinstrumenten passar in<\/h3>\n<p>Fast installerade skyddssystem hanterar utl\u00f6sningen p\u00e5 br\u00e5kdelen av en sekund, men en b\u00e4rbar tv\u00e5kanalsanalysator \u00e4r ov\u00e4rderlig f\u00f6r att utreda orsaken till instabiliteten n\u00e4r maskinen har stannat och f\u00f6r att utf\u00f6ra drifts\u00e4ttningskontroller i efterhand. Ett instrument som <a href=\"https:\/\/vibromera.eu\/sv\/produkt\/balanset-1\/\">Balanset-1A<\/a> registrerar FFT-spektrumet f\u00f6r att bekr\u00e4fta den subsynkrona toppen, \u00f6vervakar dess amplitud under en kontrollerad uppk\u00f6rning och g\u00f6r det m\u00f6jligt f\u00f6r en tekniker att f\u00f6rst utesluta en 1\u00d7 <a href=\"https:\/\/vibromera.eu\/sv\/glossary\/imbalance\/\">obalans<\/a> problemet \u2013 genom att m\u00e4ta amplitud och fas vid driftvarvtal \u2013 innan man tillskriver vibrationen en verklig sj\u00e4lvupphetsad instabilitet i t\u00e4tningen. Att skilja p\u00e5 en vanlig obalans, som <a href=\"https:\/\/vibromera.eu\/sv\/glossary\/faltbalansering\/\">f\u00e4ltbalansering<\/a> f\u00e4ltbalansering kan \u00e5tg\u00e4rda, fr\u00e5n en verklig \u00e5ngvirvel, vilket den inte kan, \u00e4r ett avg\u00f6rande tidigt steg i vibrationsdiagnostiken.<\/p>\n<h2>6. Branscher, till\u00e4mpningar och relaterade fenomen<\/h2>\n<p>\u00c5ngvirvel \u00e4r s\u00e4rskilt problematisk i:<\/p>\n<ul>\n<li><strong>Kraftproduktion:<\/strong> stora \u00e5ngturbingeneratorer.<\/li>\n<li><strong>Petrokemisk:<\/strong> \u00e5ngdrivna kompressorer och pumpar.<\/li>\n<li><strong>Gasturbiner:<\/strong> flygmotorer och industriella gasturbiner.<\/li>\n<li><strong>Processindustrier:<\/strong> alla h\u00f6ghastighetsturbomaskiner som \u00e4r f\u00f6rsedda med labyrintt\u00e4tningar.<\/li>\n<\/ul>\n<p>Den ing\u00e5r ocks\u00e5 i en grupp av n\u00e4ra besl\u00e4ktade instabiliteter. <a href=\"https:\/\/vibromera.eu\/sv\/glossary\/oil-whirl\/\">Oljevirvel<\/a> har samma destabiliserande mekanism, men i en sm\u00f6rjfilm i ett lager ist\u00e4llet f\u00f6r i en t\u00e4tning; <a href=\"https:\/\/vibromera.eu\/sv\/glossary\/shaft-whip\/\">axelpiska<\/a> uppvisar samma frekvensl\u00e5sning vid en egenfrekvens; och alla tillh\u00f6r den bredare kategorin av sj\u00e4lvexciterade <a href=\"https:\/\/vibromera.eu\/sv\/glossary\/rotor-instability\/\">rotorinstabilitet<\/a>. \u00c4ven om framsteg inom t\u00e4tningsteknik och lagerkonstruktion har minskat f\u00f6rekomsten av fenomenet, \u00e4r det fortfarande avg\u00f6rande att f\u00f6rst\u00e5 \u00e5ngvirvlar f\u00f6r alla som konstruerar eller driver h\u00f6ghastighets- och h\u00f6gtrycksturbomaskiner.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/sv\/glossary\/\">\u2190 Tillbaka till huvudregistret<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>L\u00e4r dig om \u00e5ngvirvel, en sj\u00e4lvexciterad vibrationsinstabilitet i \u00e5ngturbiner orsakad av aerodynamiska korskopplingskrafter i labyrintt\u00e4tningar och bladspetsspel.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,110],"tags":[],"class_list":["post-255","glossary","type-glossary","status-publish","hentry","category-glossary","category-vibration-diagnostics"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/sv\/wp-json\/wp\/v2\/glossary\/255","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/sv\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/sv\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/sv\/wp-json\/wp\/v2\/glossary\/255\/revisions"}],"predecessor-version":[{"id":101413,"href":"https:\/\/vibromera.eu\/sv\/wp-json\/wp\/v2\/glossary\/255\/revisions\/101413"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/sv\/wp-json\/wp\/v2\/media?parent=255"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/sv\/wp-json\/wp\/v2\/categories?post=255"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/sv\/wp-json\/wp\/v2\/tags?post=255"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}