{"id":235,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/shaft-whip\/"},"modified":"2026-07-03T10:10:47","modified_gmt":"2026-07-03T10:10:47","slug":"shaft-whip","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/fi\/glossary\/shaft-whip\/","title":{"rendered":"Mik\u00e4 on akselin piiskaaminen? Roottorin vakavan ep\u00e4vakauden selitys"},"content":{"rendered":"<h1>Akselin piiskauksen ymm\u00e4rt\u00e4minen py\u00f6riviss\u00e4 koneissa<\/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\/fi\/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\/fi\/product\/balanset-1\/\" title=\"Kannettava tasapainotin ja t\u00e4rin\u00e4analysaattori 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 kannettava tasapainotin ja v\u00e4r\u00e4htelyanalysaattori, t\u00e4ydellinen sarja\" 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\/fi\/product-category\/devices\/\" rel=\"tag\">Laitteet<\/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\/fi\/product\/balanset-1\/\" title=\"Kannettava tasapainotin ja t\u00e4rin\u00e4analysaattori Balanset-1A\">Kannettava tasapainotin &#038; t\u00e4rin\u00e4analysaattori 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\">&euro;<\/span>1,975.00<\/span> + ALV (jos sovellettavissa)<\/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=\"\/fi\/wp-json\/wp\/v2\/glossary\/235?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=\"Lis\u00e4\u00e4 ostoskoriin\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Lis\u00e4\u00e4 ostoskoriin\" 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=\"\/fi\/wp-json\/wp\/v2\/glossary\/235?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=\"Lis\u00e4\u00e4 ostoskoriin: \u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d on lis\u00e4tty ostoskoriin\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Lis\u00e4\u00e4 ostoskoriin<\/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\/fi\/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\/fi\/product\/vibration-sensor\/\" title=\"T\u00e4rin\u00e4anturi\">\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:n t\u00e4rin\u00e4anturin l\u00e4hikuva\" 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\/fi\/product-category\/parts\/\" rel=\"tag\">Osat<\/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\/fi\/product\/vibration-sensor\/\" title=\"T\u00e4rin\u00e4anturi\">T\u00e4rin\u00e4anturi<\/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\">&euro;<\/span>90.00<\/span> + ALV (jos sovellettavissa)<\/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=\"\/fi\/wp-json\/wp\/v2\/glossary\/235?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=\"Lis\u00e4\u00e4 ostoskoriin\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Lis\u00e4\u00e4 ostoskoriin\" 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=\"\/fi\/wp-json\/wp\/v2\/glossary\/235?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=\"Lis\u00e4\u00e4 ostoskoriin: \u201cVibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u201cVibration sensor\u201d on lis\u00e4tty ostoskoriin\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Lis\u00e4\u00e4 ostoskoriin<\/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\/fi\/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\/fi\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optinen anturi (lasertakometri)\">\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=\"Optinen anturi (lasertakometri)\" 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\/fi\/product-category\/parts\/\" rel=\"tag\">Osat<\/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\/fi\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optinen anturi (lasertakometri)\">Optinen anturi (lasertakometri)<\/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\">&euro;<\/span>124.00<\/span> + ALV (jos sovellettavissa)<\/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=\"\/fi\/wp-json\/wp\/v2\/glossary\/235?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=\"Lis\u00e4\u00e4 ostoskoriin\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Lis\u00e4\u00e4 ostoskoriin\" 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=\"\/fi\/wp-json\/wp\/v2\/glossary\/235?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=\"Lis\u00e4\u00e4 ostoskoriin: \u201cOptical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u201cOptical Sensor (Laser Tachometer)\u201d on lis\u00e4tty ostoskoriin\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Lis\u00e4\u00e4 ostoskoriin<\/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\/fi\/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\/fi\/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-roottorin tasapainotussarja: kantolaukku, monikanavainen signaalimuunnin, k\u00e4dess\u00e4 pidett\u00e4v\u00e4 analysaattori, magneettijalusta, t\u00e4rin\u00e4anturit ja kierretyt kaapelit.\" 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\/fi\/product-category\/devices\/\" rel=\"tag\">Laitteet<\/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\/fi\/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\">&euro;<\/span>6,803.00<\/span> + ALV (jos sovellettavissa)<\/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=\"\/fi\/wp-json\/wp\/v2\/glossary\/235?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=\"Lis\u00e4\u00e4 ostoskoriin\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Lis\u00e4\u00e4 ostoskoriin\" 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=\"\/fi\/wp-json\/wp\/v2\/glossary\/235?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=\"Lis\u00e4\u00e4 ostoskoriin: \u201cBalanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u201cBalanset-4\u201d on lis\u00e4tty ostoskoriin\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Lis\u00e4\u00e4 ostoskoriin<\/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\/fi\/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\/fi\/product\/magnet-stand\/\" title=\"Magneettinen jalusta 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=\"Magneettipohja.\" 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\/fi\/product-category\/parts\/\" rel=\"tag\">Osat<\/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\/fi\/product\/magnet-stand\/\" title=\"Magneettinen jalusta Insize-60-kgf\">Magneettinen jalusta 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\">&euro;<\/span>46.00<\/span> + ALV (jos sovellettavissa)<\/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=\"\/fi\/wp-json\/wp\/v2\/glossary\/235?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=\"Lis\u00e4\u00e4 ostoskoriin\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Lis\u00e4\u00e4 ostoskoriin\" 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=\"\/fi\/wp-json\/wp\/v2\/glossary\/235?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=\"Lis\u00e4\u00e4 ostoskoriin: \u201cMagnetic Stand Insize-60-kgf\u201d\" rel=\"nofollow\" data-success_message=\"\u201cMagnetic Stand Insize-60-kgf\u201d on lis\u00e4tty ostoskoriin\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Lis\u00e4\u00e4 ostoskoriin<\/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\/fi\/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\/fi\/product\/reflective-tape\/\" title=\"Heijastava nauha\">\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=\"Heijastava nauha\" 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\/fi\/product-category\/parts\/\" rel=\"tag\">Osat<\/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\/fi\/product\/reflective-tape\/\" title=\"Heijastava nauha\">Heijastava nauha<\/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\">&euro;<\/span>10.00<\/span> + ALV (jos sovellettavissa)<\/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=\"\/fi\/wp-json\/wp\/v2\/glossary\/235?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=\"Lis\u00e4\u00e4 ostoskoriin\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Lis\u00e4\u00e4 ostoskoriin\" 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=\"\/fi\/wp-json\/wp\/v2\/glossary\/235?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=\"Lis\u00e4\u00e4 ostoskoriin: \u201cReflective tape\u201d\" rel=\"nofollow\" data-success_message=\"\u201cReflective tape\u201d on lis\u00e4tty ostoskoriin\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Lis\u00e4\u00e4 ostoskoriin<\/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\/fi\/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\/fi\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dynaaminen tasapainotin &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-pakkauksen sis\u00e4lt\u00f6, jossa on liit\u00e4nt\u00e4yksikk\u00f6, anturit, kierroslukumittari ja lis\u00e4varusteet\" 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\/fi\/product-category\/devices\/\" rel=\"tag\">Laitteet<\/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\/fi\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dynaaminen tasapainotin &quot;Balanset-1A&quot; OEM\">Dynaaminen tasapainotin \"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\">&euro;<\/span>1,735.00<\/span> + ALV (jos sovellettavissa)<\/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=\"\/fi\/wp-json\/wp\/v2\/glossary\/235?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=\"Lis\u00e4\u00e4 ostoskoriin\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Lis\u00e4\u00e4 ostoskoriin\" 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=\"\/fi\/wp-json\/wp\/v2\/glossary\/235?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=\"Lis\u00e4\u00e4 ostoskoriin: \u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"\u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d on lis\u00e4tty ostoskoriin\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Lis\u00e4\u00e4 ostoskoriin<\/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>Akselin piiska<\/strong> \u2014 known as <em>\u00f6ljypiiska<\/em> kun se on per\u00e4isin hydrodynaamisista laakereista \u2014 on vakava muoto <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/rotor-instability\/\">roottorin ep\u00e4vakaus<\/a> jolle on ominaista v\u00e4kivaltainen <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/self-excited-vibration\/\">itsevirittyv\u00e4 v\u00e4r\u00e4htely<\/a>. Se ilmenee, kun nestokalvosessa laakereissa py\u00f6riv\u00e4 roottori ylitt\u00e4\u00e4 kriittisen kynnysnopeuden, tyypillisesti noin kaksinkertaisena ensimm\u00e4iseen <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/critical-speed\/\">kriittinen nopeus<\/a>. Kun sivuttaisv\u00e4r\u00e4htely vakiintuu, t\u00e4rin\u00e4taajuus &#8220;lukittuu&#8221; roottorin ensimm\u00e4iseen <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/natural-frequency\/\">ominaistaajuus<\/a> ja pysyy siell\u00e4 riippumatta nopeuden lis\u00e4yksest\u00e4, amplitudin rajoittaessa vain laakerointiv\u00e4lys \u2014 tai katastrofaalinen vaurio. Se on yksi vaarallisimmista tiloista suurinopeuksisissa koneissa, koska se kehittyy \u00e4killisesti, kasvaa tuhoisiin tasoihin sekunteissa eik\u00e4 sit\u00e4 pysty korjaamaan <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/tasapainottaminen\/\">tasapainottaminen<\/a> tai mill\u00e4\u00e4n muulla tavanomaisella korjaustoimenpiteell\u00e4. Se vaatii v\u00e4litt\u00f6m\u00e4n alasajon, jonka j\u00e4lkeen laakerointij\u00e4rjestelm\u00e4\u00e4 on muutettava uusiutumisen est\u00e4miseksi.<\/p>\n<h2>1. Eteneminen: \u00f6ljyhuojunnasta akseliv\u00e4r\u00e4hdykseen<\/h2>\n<p>Akseliv\u00e4r\u00e4htely harvoin ilmenee varoittamatta \u2014 se on nelivaiheisen etenemisen p\u00e4\u00e4tepiste, jonka tarkkaavainen analyytikko voi katkaista kauan ennen tuhoisaa vaihetta.<\/p>\n<h3>Vaihe 1 \u2014 Vakaa toiminta<\/h3>\n<ul>\n<li>Roottori py\u00f6rii ep\u00e4vakauden kynnyksen alapuolella.<\/li>\n<li>Only normal <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/forced-vibration\/\">pakotettu v\u00e4r\u00e4htely<\/a> alkaen <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/unbalance\/\">ep\u00e4tasapaino<\/a> is present.<\/li>\n<li>Laakerin \u00f6ljykalvo tarjoaa vakaan ja hyvin vaimennetun tuen.<\/li>\n<\/ul>\n<h3>Vaihe 2 \u2014 \u00d6ljyyn muodostuva py\u00f6riminen alkaa<\/h3>\n<p>Kun nopeus nousee yli noin 2\u00d7 ensimm\u00e4isen kriittisen nopeuden, <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/oil-whirl\/\">\u00f6ljypy\u00f6rre<\/a> begins:<\/p>\n<ul>\n<li>A <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/sub-synchronous\/\">alisynkroninen<\/a> vibr\u00e1atio ilmaantuu noin 0,43\u20130,48 kertaa akselin nopeudella.<\/li>\n<li>Amplitudi on aluksi kohtalainen ja nopeudesta riippuvainen<\/li>\n<li>Huojunnan taajuus kasvaa suhteessa akselin nopeuteen.<\/li>\n<li>Se voi olla satunnainen tai jatkuva.<\/li>\n<li>Se voi esiinty\u00e4 samanaikaisesti normaalin 1\u00d7 t\u00e4rin\u00e4n kanssa, joka aiheutuu ep\u00e4tasapainosta.<\/li>\n<\/ul>\n<h3>Vaihe 3 \u2014 Siirtym\u00e4 akseliv\u00e4r\u00e4hdykseen<\/h3>\n<p>Kun nouseva \u00f6ljyhuojunnan taajuus kasvaa riitt\u00e4v\u00e4sti vastaamaan ensimm\u00e4ist\u00e4 ominaistaajuutta, k\u00e4ytt\u00e4ytyminen muuttuu luonteeltaan \u00e4killisesti:<\/p>\n<ul>\n<li><strong>Taajuuslukitus:<\/strong> t\u00e4rin\u00e4n taajuus lakkaa seuraamasta nopeutta ja kiinnittyy ominaistaajuuteen.<\/li>\n<li><strong>Resonanssivahvistus:<\/strong> amplitudi kasvaa dramaattisesti, koska j\u00e4rjestelm\u00e4 on nyt <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/resonance\/\">resonanssi<\/a>.<\/li>\n<li><strong>\u00c4killinen puhkeaminen:<\/strong> siirtym\u00e4 huojunnasta akseliv\u00e4r\u00e4hdykseen voi tapahtua k\u00e4yt\u00e4nn\u00f6ss\u00e4 v\u00e4litt\u00f6m\u00e4sti.<\/li>\n<li><strong>Nopeudesta riippumattomuus:<\/strong> nopeuden edelleen lis\u00e4\u00e4ntyess\u00e4 taajuus ei en\u00e4\u00e4 muutu \u2014 ainoastaan amplitudi muuttuu.<\/li>\n<\/ul>\n<h3>Vaihe 4 \u2014 Akselin heilahdus (kriittinen kunto)<\/h3>\n<ul>\n<li>V\u00e4r\u00e4htely pysyy vakiotaajuudella \u2014 ensimm\u00e4isell\u00e4 ominaistaajuudella, tyypillisesti 40\u201360 Hz.<\/li>\n<li>Amplitudi voi olla 5\u201320-kertainen normaaliin ep\u00e4tasapainosta johtuvaan v\u00e4r\u00e4htelyyn verrattuna.<\/li>\n<li>Akseli voi iske\u00e4 laakeriv\u00e4lyksen rajoihin.<\/li>\n<li>Laakerit ja \u00f6ljy kuumenevat nopeasti.<\/li>\n<li>Katastrofaalinen vaurio voi seurata muutamassa minuutissa, jos konetta ei pys\u00e4ytet\u00e4.<\/li>\n<\/ul>\n<h2>2. Fyysinen mekanismi<\/h2>\n<p>Akselin vipuilu johtuu laakerin \u00f6ljykalvon nestodynamiikasta, mink\u00e4 vuoksi sit\u00e4 ei voida poistaa tasapainottamalla \u2014 ep\u00e4vakauttava energia tulee voiteluaineesta, ei ep\u00e4tasapainosta. Tapahtumaketju etenee seuraavasti:<\/p>\n<ol>\n<li><strong>\u00d6ljykiilan muodostuminen:<\/strong> py\u00f6riv\u00e4 akseli vet\u00e4\u00e4 voiteluaineen laakerin ymp\u00e4ri muodostaen paineistetun kiilan.<\/li>\n<li><strong>Tangentiaalinen voima:<\/strong> kiila ty\u00f6nt\u00e4\u00e4 laakeritappiin radiaaliseen siirtym\u00e4\u00e4n n\u00e4hden kohtisuoraan suuntaan \u2014 ristikk\u00e4iskytkent\u00e4inen, tangentiaalinen voima.<\/li>\n<li><strong>Kiertoliike:<\/strong> tangentiaalinen voima ajaa akselin keskipisteen <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/whirl\/\">py\u00f6rimisliike<\/a> in an <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/orbit\/\">kiertorata<\/a> noin puolella akselin nopeudella.<\/li>\n<li><strong>Energian otto:<\/strong> kiertoliike ottaa energiaa akselin py\u00f6rimisest\u00e4 yll\u00e4pit\u00e4\u00e4kseen itsens\u00e4 \u2014 t\u00e4m\u00e4 on itsehere\u00e4v\u00e4n v\u00e4r\u00e4htelyn tunnusmerkki.<\/li>\n<li><strong>Resonanssikierto:<\/strong> kun kiertoliikkeen taajuus on sama kuin ominaistaajuus, resonanssi vahvistaa liikett\u00e4.<\/li>\n<li><strong>Rajakierto:<\/strong> amplitudi kasvaa, kunnes laakeriv\u00e4lyksen tai vaurion aiheuttama raja rajoittaa sit\u00e4.<\/li>\n<\/ol>\n<p>Koska her\u00e4tt\u00e4v\u00e4 voima on verrannollinen voiteluaineen k\u00e4ytt\u00e4ytymiseen, kaikki mik\u00e4 kasvattaa \u00f6ljykalvon j\u00e4ykkyytt\u00e4 tai j\u00e4rjestelm\u00e4n <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/damping\/\">vaimennus<\/a> nostaa nopeutta, jolla ep\u00e4stabiilisuus alkaa.<\/p>\n<h2>3. Diagnoosin tunnistaminen<\/h2>\n<p>Akselin vipuilu j\u00e4tt\u00e4\u00e4 selke\u00e4n j\u00e4ljen v\u00e4r\u00e4htelydataan, mik\u00e4 mahdollistaa varhaisen tunnistamisen, jos oikeat kuvaajat tarkastetaan.<\/p>\n<h3>T\u00e4rin\u00e4signaali<\/h3>\n<ul>\n<li><strong><a href=\"https:\/\/vibromera.eu\/fi\/glossary\/spectrum\/\">Spektri<\/a>:<\/strong> suuri huippu aliksynkronisella (ensimm\u00e4isell\u00e4 luonnollisella) taajuudella, joka pysyy paikallaan nopeuden muutoksista riippumatta.<\/li>\n<li><strong><a href=\"https:\/\/vibromera.eu\/fi\/glossary\/waterfall-plot\/\">Vesiputouskaavio<\/a>:<\/strong> aliksynkroninen komponentti n\u00e4kyy pystysuorana viivana (vakiotaajuus) eik\u00e4 nopeudesta riippuvan komponentin vinoviivana.<\/li>\n<li><strong><a href=\"https:\/\/vibromera.eu\/fi\/glossary\/order-analysis\/\">Kertalukuanalyysi<\/a>:<\/strong> murtolukukerroin, joka <em>v\u00e4henee<\/em> nopeuden noustessa \u2014 esimerkiksi liukuen arvosta 0,5\u00d7 arvoon 0,4\u00d7 ja edelleen 0,35\u00d7 \u2014 koska taajuus on kiinte\u00e4 nopeuden kasvaessa.<\/li>\n<li><strong>Kiertorata:<\/strong> suuri py\u00f6re\u00e4 tai elliptinen kiertorata luonnollisella taajuudella.<\/li>\n<\/ul>\n<p>A <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/bode-plot\/\">Bode-diagrammi<\/a> taken on <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/coastdown\/\">alasajo<\/a> erottaa todellisen resonanssin selv\u00e4sti \u00f6ljyhypist\u00e4, koska lukittunut aliksynkroninen viiva k\u00e4ytt\u00e4ytyy hyvin eri tavalla kuin synkroninen kriittisen nopeuden huippu.<\/p>\n<h3>Aloitusnopeus<\/h3>\n<ul>\n<li><strong>Tyypillinen raja:<\/strong> 2,0\u20132,5-kertainen ensimm\u00e4inen kriittinen nopeus.<\/li>\n<li><strong>Bearing-dependent:<\/strong> tarkka kynnysarvo vaihtelee laakerin rakenteen mukaan, <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/preload\/\">esikuormitus<\/a>, ja \u00f6ljyn viskositeetin mukaan.<\/li>\n<li><strong>\u00c4killinen puhkeaminen:<\/strong> pieni nopeuden lis\u00e4ys voi siirt\u00e4\u00e4 roottorin vakaasta t\u00e4ysin ep\u00e4vakaaseen tilaan.<\/li>\n<\/ul>\n<h2>4. Ennaltaehk\u00e4isystrategiat<\/h2>\n<p>Koska \u00f6ljyhypy\u00e4 ei voida poistaa tasapainottamalla, ennaltaehk\u00e4isy perustuu <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/journal-bearing\/\">liukulaakeri<\/a> sek\u00e4 koneen k\u00e4ytt\u00f6tapaan.<\/p>\n<h3>Laakerisuunnittelun muutokset<\/h3>\n<p><strong>1. Kallistuvat laajerit<\/strong> \u2014 tehokkain ratkaisu. Kenk\u00e4t k\u00e4\u00e4ntyv\u00e4t itsen\u00e4isesti, mik\u00e4 poistaa destablilisoivan ristiinkytkeytymisvoiman; ne ovat luonnostaan vakaita laajalla nopeusalueella ja ovat toimialan standardi suurinopeuksisille turbokoneikoille.<\/p>\n<p><strong>2. Painepato-laajerit<\/strong> \u2014 muunnettu sylinterim\u00e4inen laakeri, jossa on ura tai pato, joka nostaa tehollista vaimennusta ja j\u00e4ykkyytt\u00e4; halvempi kuin kallistuvakenk\u00e4laakeri mutta v\u00e4hemm\u00e4n tehokas.<\/p>\n<p><strong>3. Laakerin esij\u00e4nnitys<\/strong> \u2014 radiaalisen esij\u00e4nnityksen lis\u00e4\u00e4minen (usein ep\u00e4keskoportaiden avulla) nostaa j\u00e4ykkyytt\u00e4 ja siirt\u00e4\u00e4 ep\u00e4vakauden kynnysarvoa ylemm\u00e4s.<\/p>\n<p><strong>4. <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/squeeze-film-damper\/\">Puristekalvon vaimentimet<\/a><\/strong> \u2014 laakerin ymp\u00e4rill\u00e4 oleva ulkoinen vaimennuselementti, joka lis\u00e4\u00e4 vaimennusta vaatimatta laakerin uudelleensuunnittelua; soveltuu hyvin j\u00e4lkiasennuksiin.<\/p>\n<h3>Operatiiviset toimenpiteet<\/h3>\n<ul>\n<li><strong>Nopeusrajoitus:<\/strong> pid\u00e4 enimm\u00e4isnopeus kynnysarvon alapuolella \u2014 tyypillisesti alle 1,8-kertainen ensimm\u00e4inen kriittinen nopeus.<\/li>\n<li><strong>Kuormituksen hallinta:<\/strong> K\u00e4yt\u00e4 suurempia laakerikuormia, jos mahdollista, koska kuorma lis\u00e4\u00e4 vaimennusta.<\/li>\n<li><strong>\u00d6ljyn l\u00e4mp\u00f6tilan s\u00e4\u00e4t\u00f6:<\/strong> viile\u00e4mpi \u00f6ljy on viskositeettisemp\u00e4\u00e4 ja stabiloivampaa.<\/li>\n<li><strong>Seuranta:<\/strong> jatkuva <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/vibration-monitoring\/\">t\u00e4rin\u00e4nvalvonta<\/a> h\u00e4lytyksill\u00e4, jotka tarkkailevat erityisesti alisynkronista taajuuskaistaa.<\/li>\n<\/ul>\n<h2>5. Seuraukset ja vahingot<\/h2>\n<h3>V\u00e4litt\u00f6m\u00e4t vaikutukset<\/h3>\n<ul>\n<li><strong>Voimakas t\u00e4rin\u00e4:<\/strong> amplitudit voivat nousta useisiin millimetreihin (satoja mils-yksik\u00f6it\u00e4).<\/li>\n<li><strong>Melu:<\/strong> voimakas, erillinen \u00e4\u00e4ni, t\u00e4ysin erilainen normaalista k\u00e4yt\u00f6st\u00e4.<\/li>\n<li><strong>Laakerien nopea kuumeneminen:<\/strong> l\u00e4mp\u00f6tila voi nousta 20\u201350 \u00b0C muutamassa minuutissa.<\/li>\n<li><strong>\u00d6ljyn hajoaminen:<\/strong> korkea l\u00e4mp\u00f6tila ja voimakas leikkausvaikutus hajottavat voiteluaineen.<\/li>\n<\/ul>\n<h3>Mahdolliset viat<\/h3>\n<ul>\n<li><strong>Laakerin pyyhk\u00e4isyvaurio:<\/strong> babbit-vuoraus sulaa ja pyyhkiytyy pois.<\/li>\n<li><strong>Akselivaurio:<\/strong> pinnan sy\u00f6pyminen, haittautuminen tai pysyv\u00e4 muodonmuutos.<\/li>\n<li><strong><a href=\"https:\/\/vibromera.eu\/fi\/glossary\/seal-defects\/\">Seal failure<\/a>:<\/strong> liiallinen akselin liike tuhoaa tiivisteet.<\/li>\n<li><strong>Akselin murtuminen:<\/strong> korkean syklin <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/fatigue\/\">v\u00e4symys<\/a> v\u00e4kivaltaisesta v\u00e4r\u00e4httelyst\u00e4.<\/li>\n<li><strong><a href=\"https:\/\/vibromera.eu\/fi\/glossary\/coupling-defects\/\">Kytkimen vauriot<\/a>:<\/strong> siirretyt voimat rikkovat kytkimet.<\/li>\n<\/ul>\n<h2>6. Liittyv\u00e4t ilmi\u00f6t<\/h2>\n<h3>\u00d6ljypy\u00f6rre<\/h3>\n<p><a href=\"https:\/\/vibromera.eu\/fi\/glossary\/oil-whirl\/\">\u00d6ljypy\u00f6rre<\/a> on whip-ilmi\u00f6n esiaste: sama mekanismi, mutta taajuus ei ole viel\u00e4 lukittunut ominaistaajuudelle. Sen amplitudi on pienempi, taajuus seuraa py\u00f6rimisnopeutta noin 0,43\u20130,48\u00d7 tahdilla, ja joissakin sovelluksissa se on hyv\u00e4ksytt\u00e4viss\u00e4.<\/p>\n<h3>H\u00f6yrypy\u00f6rre<\/h3>\n<p><a href=\"https:\/\/vibromera.eu\/fi\/glossary\/steam-whirl\/\">H\u00f6yrypy\u00f6rre<\/a> on vastaava ep\u00e4stabiilisuus h\u00f6yryturbiineissa; sen aiheuttavat labyrinttitiivisteiss\u00e4 esiintyv\u00e4t aerodynaamiset voimat \u00f6ljykalvon sijaan. Se ilmenee samana alisynkronisena t\u00e4rin\u00e4n\u00e4, joka lukittuu ominaistaajuudelle.<\/p>\n<h3>Kuiva-kitka-p\u00f6yriminen<\/h3>\n<p>T\u00e4m\u00e4 variantti syntyy tiivisteiden kohdalla tai <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/rotor-rub\/\">roottorin ja staattorin v\u00e4linen kontakti<\/a>. Kitka tarjoaa ep\u00e4vakauttavan mekanismin; se on harvinaisempi kuin \u00f6ljy-whip, mutta yht\u00e4 vaarallinen ja vaatii erilaisen korjaustoimenpiteen \u2014 kontaktin poistamisen tai tiivisteen parantamisen.<\/p>\n<h2>7. Tapaustutkimus: Kompressorin akselin p\u00f6yriminen<\/h2>\n<p><strong>Skenaario:<\/strong> suurinopeuksinen keskipakoiskompressori sylinterim\u00e4isill\u00e4 liukulaakereilla.<\/p>\n<ul>\n<li><strong>Normaali toiminta:<\/strong> 12 000 rpm, t\u00e4rin\u00e4 2,5 mm\/s.<\/li>\n<li><strong>Nopeuden lis\u00e4ys:<\/strong> operaattori nosti kierroksia 13 500 rpm:iin kapasiteetin lis\u00e4\u00e4miseksi.<\/li>\n<li><strong>Alku:<\/strong> 13 200 kierroksella minuutissa kehittyi \u00e4killinen voimakas v\u00e4r\u00e4htely.<\/li>\n<li><strong>Oireet:<\/strong> 25 mm\/s at a constant 105 Hz; bearing temperature rose from 70 \u00b0C to 95 \u00b0C in three minutes.<\/li>\n<li><strong>H\u00e4t\u00e4toimenpide:<\/strong> v\u00e4lit\u00f6n pys\u00e4ytys esti laakerivaurion.<\/li>\n<li><strong>Perimm\u00e4inen syy:<\/strong> the first critical speed was 6,300 rpm (105 Hz); at 13,200 rpm the rotor crossed the whip threshold of roughly 2\u00d7 critical \u2248 12,600 rpm, and the vibration locked onto the 105 Hz first natural frequency.<\/li>\n<li><strong>Ratkaisu:<\/strong> tavalliset laakerit korvattiin kalvolaakereilla, mik\u00e4 mahdollistaa turvallisen k\u00e4yt\u00f6n 15 000 rpm:\u00e4\u00e4n asti.<\/li>\n<\/ul>\n<h2>8. Standardit, k\u00e4yt\u00e4nt\u00f6 ja kentt\u00e4ty\u00f6kalut<\/h2>\n<ul>\n<li><strong><a href=\"https:\/\/vibromera.eu\/fi\/glossary\/api-684\/\">API 684<\/a>:<\/strong> edellytt\u00e4\u00e4 roottoridynamiikan stabiilisuusanalyysi\u00e4 nopeatoimisille turbokonej\u00e4rjestelmille.<\/li>\n<li><strong>API 617:<\/strong> m\u00e4\u00e4rittelee laakerointityypit ja stabiilisuusvaatimukset sentrifugaalicompressoreille.<\/li>\n<li><strong>ISO 10814:<\/strong> Antaa ohjeita laakerin valintaan vakauden varmistamiseksi<\/li>\n<li><strong>Teollisuuden k\u00e4yt\u00e4nt\u00f6:<\/strong> kalvolaakerit ovat vakioratkaisu laitteistoille, jotka toimivat yli 2-kertaisen ensimm\u00e4isen kriittisen nopeuden yl\u00e4puolella.<\/li>\n<\/ul>\n<p>Kent\u00e4ll\u00e4 jokap\u00e4iv\u00e4inen suojakeino on havaita ennakkovaroitusmerkki ennen kuin roottori saavuttaa py\u00f6rimisep\u00e4stabiiliuden. Kannettava kaksikaavainen analysaattori, kuten <a href=\"https:\/\/vibromera.eu\/fi\/tuote\/balanset-1\/\">Balanset-1A<\/a> antaa insin\u00f6\u00f6rille mahdollisuuden tallentaa amplitudi, <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/phase\/\">vaihe<\/a> ja spektri hallitun k\u00e4ynnistyksen aikana sek\u00e4 tarkkaile ali-synkronista kaistaa suoraan \u2014 jos vakaa 1\u00d7-signatuuri alkaa \u00e4killisesti kasvattaa lukittua, nopeudesta riippumatonta huippua l\u00e4hell\u00e4 ensimm\u00e4ist\u00e4 ominaistaajuutta, roottori on py\u00f6rimisep\u00e4stabiiliuden reunalla ja nopeus on pudotettava. Sama laite vahvistaa j\u00e4lkeenp\u00e4in, ett\u00e4 pohjana oleva ep\u00e4tasapaino on toleranssin sis\u00e4ll\u00e4, sulkien sen pois mahdollisena her\u00e4ttel\u00e4hteen\u00e4. Akselin py\u00f6rimisep\u00e4stabiilisuus on edelleen katastrofaalinen vikamuoto, joka hallitaan parhaiten oikealla laakerivalinnalla ja -suunnittelulla; sen tyypillisen ali-synkronisen, taajuuslukitun signatuurin tunnistaminen mahdollistaa nopean diagnoosin ja p\u00e4\u00e4tt\u00e4v\u00e4isen h\u00e4t\u00e4toimenpiteen, joka suojaa kallista nopeatoimista laitteistoa.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/fi\/glossary\/\">\u2190 Takaisin p\u00e4\u00e4hakemistoon<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Perehdy akselin piiskahtaumaan, joka on voimakas itsest\u00e4\u00e4n her\u00e4tty v\u00e4r\u00e4htelyilmi\u00f6 nestekalvolaakereissa suurilla nopeuksilla ja aiheuttaa voimakkaita v\u00e4r\u00e4htelyj\u00e4 omalla taajuudellaan.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,111],"tags":[],"class_list":["post-235","glossary","type-glossary","status-publish","hentry","category-glossary","category-rotor-balancing"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/glossary\/235","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":2,"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/glossary\/235\/revisions"}],"predecessor-version":[{"id":102183,"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/glossary\/235\/revisions\/102183"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/media?parent=235"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/categories?post=235"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/tags?post=235"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}