{"id":78,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/coastdown-analysis\/"},"modified":"2026-05-23T22:41:11","modified_gmt":"2026-05-23T22:41:11","slug":"coastdown-analysis","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/fi\/glossary\/coastdown-analysis\/","title":{"rendered":"Mik\u00e4 on rullausanalyysi? Sammutuksen t\u00e4rin\u00e4testaus"},"content":{"rendered":"<h1>Alasajoanalyysin ymm\u00e4rt\u00e4minen<\/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\/78?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\/78?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\/78?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\/78?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\/78?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\/78?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\/78?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\/78?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\/78?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\/78?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\/78?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\/78?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\/78?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\/78?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>Alasajoanalyysi<\/strong> on koneen j\u00e4rjestelm\u00e4llinen mittaus ja arviointi <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/vibration\/\">t\u00e4rin\u00e4<\/a> hidastettaessa toimintanopeudesta pys\u00e4hdykseen virran katkaisun j\u00e4lkeen. Analysaattori tallentaa amplitudin koko nopeusalueella, <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/phase\/\">vaihe<\/a>, ja <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/spectrum\/\">spektraalinen sis\u00e4lt\u00f6<\/a>, jotta yhdell\u00e4 ainoalla tehottomalla ajokerralla saadaan selville, miten roottori k\u00e4ytt\u00e4ytyy kaikilla nopeuksilla, jotka sen on l\u00e4p\u00e4ist\u00e4v\u00e4. Tulkittuna <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/bode-plot\/\">Bode-kuvaajat<\/a> ja <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/waterfall-plot\/\">vesiputousn\u00e4yt\u00f6kset<\/a>, ett\u00e4 tiedot paljastavat <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/critical-speed\/\">kriittiset nopeudet<\/a>, <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/natural-frequency\/\">ominaistaajuudet<\/a>, <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/damping\/\">vaimennus<\/a> ominaisuudet ja laajempi <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/rotor-dynamics\/\">rotordynaaminen<\/a> k\u00e4ytt\u00e4ytyminen, joka on perustana k\u00e4ytt\u00f6\u00f6notolle, vianetsinn\u00e4lle ja s\u00e4\u00e4nn\u00f6lliselle kunnon tarkistamiselle.<\/p>\n<p>Alasajoanalyysi liittyy l\u00e4heisesti <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/run-up-analysis\/\">yl\u00f6sajoanalyysiin<\/a>, mutta siin\u00e4 on kaksi selv\u00e4\u00e4 etua: hidastaminen on luonnollista ja voimatonta, mik\u00e4 tekee testist\u00e4 yksinkertaisemman ja turvallisemman, ja se suoritetaan koneen ollessa viel\u00e4 k\u00e4ytt\u00f6l\u00e4mp\u00f6tilassa eik\u00e4 kylm\u00e4n\u00e4 k\u00e4ynnistyksen yhteydess\u00e4. Se on turbokoneiden vakiohyv\u00e4ksynt\u00e4testi ja eritt\u00e4in arvokas m\u00e4\u00e4r\u00e4aikaistesti, joka suoritetaan suunnitellun tarkastuksen yhteydess\u00e4. <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/shutdown\/\">sammutus<\/a>.<\/p>\n<h2>1. Testimenettely<\/h2>\n<p>Vapaajarrutus on helppo toteuttaa, mutta se vaatii huolellista valmistelua. Koska tapahtuma tapahtuu vain kerran eik\u00e4 sit\u00e4 voi keskeytt\u00e4\u00e4, jokainen kanava on m\u00e4\u00e4ritett\u00e4v\u00e4 ja viritett\u00e4v\u00e4 ennen virran katkaisua.<\/p>\n<h3>Valmistelu<\/h3>\n<ul>\n<li><strong>Anturit:<\/strong> asenna <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/accelerometer\/\">kiihtyvyysmittarit<\/a> kaikissa laakeripaikoissa; koneissa, joissa on nestekalvolaakerit, <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/proximity-probe\/\">l\u00e4heisyysanturit<\/a> X-Y-parissa lis\u00e4t\u00e4\u00e4n, jotta akselin liike voidaan tallentaa suoraan.<\/li>\n<li><strong>Nopeuden viite:<\/strong> kytke <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/tachometer\/\">kierroslukumittari<\/a> nopeuden ja, mik\u00e4 t\u00e4rkeint\u00e4, <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/phase\/\">vaihe<\/a> referenssi, jonka avulla amplitudia ja vaihetta voidaan seurata suhteessa kierroslukuun.<\/li>\n<li><strong>Tiedonhankinta:<\/strong> konfiguroi j\u00e4rjestelm\u00e4 jatkuvaa tallennusta varten n\u00e4ytteenottotaajuudella, joka on riitt\u00e4v\u00e4 suurimmalle kiinnostavalle taajuudelle.<\/li>\n<li><strong>Laukaisu:<\/strong> M\u00e4\u00e4rit\u00e4 laukaisuehdot - kuvattava nopeusalue ja kesto.<\/li>\n<\/ul>\n<h3>Suoritus<\/h3>\n<ol>\n<li><strong>Vakauta:<\/strong> pid\u00e4 laite tasaisella k\u00e4yntinopeudella.<\/li>\n<li><strong>Aloita tallennus:<\/strong> aloittaa tiedonkeruun ennen kuin mik\u00e4\u00e4n muu muuttuu.<\/li>\n<li><strong>Katkaise virta:<\/strong> katkaise moottorin virta, katkaise turbiinipolttoaine tai poista muutoin ajov\u00e4\u00e4nt\u00f6momentti.<\/li>\n<li><strong>Seuranta:<\/strong> tarkkaile t\u00e4rin\u00e4n kehittymist\u00e4 koneen hidastuessa.<\/li>\n<li><strong>Tallennus valmis:<\/strong> jatkaa kaappausta pys\u00e4htymiseen tai kiinnostavaan v\u00e4himm\u00e4isnopeuteen.<\/li>\n<li><strong>Tallenna tiedot:<\/strong> arkistoida koko coastdown-tietokokonaisuus analysointia ja tulevaa vertailua varten.<\/li>\n<\/ol>\n<h3>Kesto<\/h3>\n<p>Se, kuinka kauan vapaajarrutus kest\u00e4\u00e4, riippuu roottorin hitausmomentista ja sit\u00e4 jarruttavasta kitkasta ja ilmanvastuksesta. Pienet moottorit voivat pys\u00e4hty\u00e4 30\u201360 sekunnissa, kun taas suurten turbiinien pys\u00e4htyminen voi kest\u00e4\u00e4 10\u201330 minuuttia. Pidempi alasajo tarkoittaa yleens\u00e4 parempaa dataa: roottori viipyy jokaisella nopeudella, jolloin saadaan enemm\u00e4n mittauspisteit\u00e4 ja tarkempi erottelukyky t\u00e4rkeimpien resonanssien kautta.<\/p>\n<h2>2. Tietojen analysointi<\/h2>\n<p>Samaa tallennetta voidaan k\u00e4sitell\u00e4 useilla eri tavoilla, joista jokainen korostaa koneen k\u00e4ytt\u00e4ytymisen eri puolia.<\/p>\n<h3>Bode-kuvaajan luominen<\/h3>\n<ul>\n<li>Poimitaan synkroninen (1 \u00d7) v\u00e4r\u00e4htelyamplitudi kullakin nopeudella k\u00e4ytt\u00e4m\u00e4ll\u00e4 <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/tracking-filter\/\">seurantasuodatin<\/a>.<\/li>\n<li>Poimi vastaava <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/phase-angle\/\">vaihekulma<\/a> kullakin nopeudella.<\/li>\n<li>Piirr\u00e4 sek\u00e4 amplitudi ett\u00e4 vaihe nopeuden suhteen.<\/li>\n<li><a href=\"https:\/\/vibromera.eu\/fi\/glossary\/critical-speed\/\">Kriittiset nopeudet<\/a> ilmoittautuvat amplitudihuippuina, joihin liittyy tyypillinen vaiheen siirtym\u00e4 - mieluiten l\u00e4hell\u00e4 180\u00b0 resonanssin kautta.<\/li>\n<\/ul>\n<h3>Vesiputouskaavio<\/h3>\n<ul>\n<li>Laske <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/fft\/\">FFT<\/a> s\u00e4\u00e4nn\u00f6llisin nopeusaskelin.<\/li>\n<li>Pinoamalla spektrit muodostetaan kolmiulotteinen <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/waterfall-plot\/\">vesiputousn\u00e4ytt\u00f6<\/a>.<\/li>\n<li>Nopeussynkroniset komponentit (1\u00d7, 2\u00d7 ja suuremmat <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/harmonics\/\">yliaallot<\/a>) kulkevat diagonaalisesti nopeuden laskiessa.<\/li>\n<li>Kiinte\u00e4taajuiset komponentit - rakenteiden ominaistaajuudet - n\u00e4kyv\u00e4t pystysuorina harjanteina, jotka eiv\u00e4t liiku nopeuden mukana.<\/li>\n<li>Kriittiset nopeudet n\u00e4kyv\u00e4t, kun synkroninen harmoninen ylitt\u00e4\u00e4 jonkin n\u00e4ist\u00e4 kiinte\u00e4taajuisista harjanteista.<\/li>\n<\/ul>\n<h3>Kiertoradan analyysi<\/h3>\n<ul>\n<li>Kun X-Y-l\u00e4hestymisanturit on asennettu, akselin <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/orbit\/\">kiertorata<\/a> voidaan rekonstruoida mill\u00e4 tahansa nopeudella.<\/li>\n<li>Rata muuttaa muotoaan, kun roottori kulkee kriittisen nopeuden l\u00e4pi.<\/li>\n<li>Sek\u00e4 prekessiosuunta ett\u00e4 kiertoradan muodon kehitys kirjataan.<\/li>\n<li>Yhdess\u00e4 n\u00e4m\u00e4 antavat kehittyneen kuvauksen roottorin dynaamisesta k\u00e4ytt\u00e4ytymisest\u00e4, jota pelkk\u00e4 skalaarinen amplitudi ei pysty kuvaamaan.<\/li>\n<\/ul>\n<h2>3. Ker\u00e4tyt tiedot<\/h2>\n<p>Hyvin toteutettu coastdown vastaa useisiin eri teknisiin kysymyksiin yhdess\u00e4 testiss\u00e4.<\/p>\n<h3>Kriittiset nopeuspaikat<\/h3>\n<ul>\n<li>Tarkka kierrosluku, jolla kukin resonanssi esiintyy.<\/li>\n<li>Ensimm\u00e4inen, toinen ja kolmas kriittinen nopeus, jos ne ovat toiminta-alueella.<\/li>\n<li>Mitattujen arvojen vertaaminen alkuper\u00e4isiin suunnittelulaskelmiin.<\/li>\n<li>Toimintanopeuden ja l\u00e4himm\u00e4n kriittisen nopeuden v\u00e4lisen erotusmarginaalin arviointi.<\/li>\n<\/ul>\n<h3>Resonanssin voimakkuus<\/h3>\n<ul>\n<li>Huippuamplitudi ilmaisee vahvistuskertoimen arvolla <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/resonance\/\">resonanssi<\/a>.<\/li>\n<li>Korkeat huippuarvot - noin 5-10-kertaiset l\u00e4ht\u00f6tasoon verrattuna - viittaavat heikkoon vaimennukseen.<\/li>\n<li>Ter\u00e4v\u00e4, kapea piikki on huolestuttavampi kuin leve\u00e4, loiva piikki.<\/li>\n<li>Tiedot osoittavat, pysyyk\u00f6 t\u00e4rin\u00e4 hyv\u00e4ksytt\u00e4v\u00e4n\u00e4 koneen kulkiessa resonanssin l\u00e4pi.<\/li>\n<\/ul>\n<h3>Vaimennuskvantifiointi<\/h3>\n<ul>\n<li>Vaimennus voidaan laskea piikin ter\u00e4vyyden perusteella (Q-kerroinmenetelm\u00e4).<\/li>\n<li>Se voidaan johtaa my\u00f6s hajoamisnopeudesta aika-alueella.<\/li>\n<li>Tyypillisiss\u00e4 teollisuuskoneissa vaimennussuhde on v\u00e4lill\u00e4 0,01-0,10.<\/li>\n<li>Pienempi vaimennus tarkoittaa aina suurempia resonanssipiikkej\u00e4, joten t\u00e4m\u00e4 luku m\u00e4\u00e4r\u00e4\u00e4 suoraan, kuinka paljon t\u00e4rin\u00e4\u00e4 kriittinen nopeus tuottaa.<\/li>\n<\/ul>\n<h2>4. Sovellukset<\/h2>\n<h3>Uuden laitteiston k\u00e4ytt\u00f6\u00f6notto<\/h3>\n<ul>\n<li>Vasta asennetun koneen ensimm\u00e4inen validointi.<\/li>\n<li>Vahvistetaan, ett\u00e4 mitatut kriittiset nopeudet vastaavat ennustettuja arvoja, yleens\u00e4 \u00b110-15%:n tarkkuudella.<\/li>\n<li>Riitt\u00e4vien erotusmarginaalien tarkistaminen.<\/li>\n<li>Perustetaan <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/baseline\/\">l\u00e4ht\u00f6taso<\/a> tulevaa vertailua varten.<\/li>\n<li>Sopimuksen tai standardin hyv\u00e4ksymistestausvaatimuksen t\u00e4ytt\u00e4minen.<\/li>\n<\/ul>\n<h3>Voimakkaan t\u00e4rin\u00e4n vianm\u00e4\u00e4ritys<\/h3>\n<ul>\n<li>Sen m\u00e4\u00e4ritt\u00e4minen, onko kone k\u00e4ynniss\u00e4 liian l\u00e4hell\u00e4 kriittist\u00e4 nopeutta.<\/li>\n<li>aiemmin tuntemattomien resonanssien tunnistaminen rakenteessa tai <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/rotor-bearing-system\/\">roottorin laakerij\u00e4rjestelm\u00e4<\/a>.<\/li>\n<li>Arvioidaan muutosten, kuten laakerimuutosten tai lis\u00e4tyn massan, vaikutusta.<\/li>\n<li>Verrataan ennen ja j\u00e4lkeen tehtyj\u00e4 coastdown-mittauksia korjauksen toimivuuden varmistamiseksi.<\/li>\n<\/ul>\n<h3>S\u00e4\u00e4nn\u00f6llinen terveystarkastus<\/h3>\n<ul>\n<li>Suunnitellun seisokin aikana tehty vuosittainen coastdown-mittaus.<\/li>\n<li>Vertailu tilauksen perustasoon osana k\u00e4ytt\u00f6\u00f6nottoa koskevaa <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/condition-monitoring\/\">kunnonvalvonta<\/a> ohjelma.<\/li>\n<li>Kriittisten nopeusmuutosten havaitseminen, jotka merkitsev\u00e4t mekaanisia muutoksia, kuten seuraavia asioita <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/looseness\/\">l\u00f6ysyys<\/a> tai tuen j\u00e4ykkyyden muutos.<\/li>\n<li>Seurataan vaimennuksen heikkenemist\u00e4 koneen k\u00e4ytt\u00f6i\u00e4n aikana.<\/li>\n<\/ul>\n<h2>5. Mihin Balanset-1A sopii, ja miksi Coastdownit voittavat Run-Upit<\/h2>\n<p>Kent\u00e4ll\u00e4 rantautumisessa ei tarvita muuta kuin kiihtyvyysmittarit, vaihevertailu ja analysaattori, joka pystyy seuraamaan amplitudia ja vaihetta suhteessa putoamisnopeuteen. Kannettava kaksikanavainen laite, kuten <a href=\"https:\/\/vibromera.eu\/fi\/tuote\/balanset-1\/\">Balanset-1A<\/a> tallentaa synkronisen amplitudin ja vaiheen koko ajon ajan ja muodostaa suoraan Bode- ja spektrin\u00e4k\u00f6kulmat, joten insin\u00f6\u00f6ri voi varmistaa koneen kriittiset nopeudet ja erottelumarginaalit paikan p\u00e4\u00e4ll\u00e4. <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/unbalance\/\">ep\u00e4tasapaino<\/a> resonanssin sijaan, siirty\u00e4 suoraan <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/kenttatasapaino\/\">kentt\u00e4tasapainotus<\/a> samalla sarjalla.<\/p>\n<p>Coastdown-testausta suositaan usein powered run-upin sijaan kolmesta syyst\u00e4:<\/p>\n<ul>\n<li><strong>Tehoton hidastaminen:<\/strong> Kone hidastuu luonnollisesti kitkan ja ilmanvastuksen ansiosta ilman ohjausj\u00e4rjestelm\u00e4n monimutkaisuutta, mik\u00e4 tekee ty\u00f6n suorittamisesta yksinkertaisempaa.<\/li>\n<li><strong>Hitaammat nopeuden muutokset:<\/strong> roottori viipyy kullakin nopeudella pidemp\u00e4\u00e4n, jolloin tietojen erottelukyky paranee, kunkin kriittisen nopeuden kautta saadaan enemm\u00e4n pisteit\u00e4 ja vaimennuksen mittaus paranee.<\/li>\n<li><strong>Kuumakuntotestaus:<\/strong> laite on k\u00e4ytt\u00f6l\u00e4mp\u00f6tilassa laakereiden ollessa todellisessa toimintav\u00e4lyksess\u00e4, joten mitattu dynamiikka edustaa konetta sellaisena kuin se todella toimii - ei kylm\u00e4n\u00e4 likiarvona.<\/li>\n<\/ul>\n<h2>6. K\u00e4yt\u00e4nn\u00f6n n\u00e4k\u00f6kohtia<\/h2>\n<h3>Turvallisuus<\/h3>\n<ul>\n<li>Seuraa t\u00e4rin\u00e4\u00e4 jatkuvasti alasajon aikana.<\/li>\n<li>Jos se kasvaa liialliseksi, p\u00e4\u00e4t\u00e4 harkitusti h\u00e4t\u00e4pys\u00e4ytyksen ja resonanssin l\u00e4pi ajamisen v\u00e4lill\u00e4.<\/li>\n<li>Pid\u00e4 henkil\u00f6kunta koko ajan poissa laitteiden l\u00e4heisyydest\u00e4.<\/li>\n<li>Vahvista, ett\u00e4 kaikki <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/machinery-protection\/\">koneiden suojaus<\/a> ja turvaj\u00e4rjestelm\u00e4t toimivat ennen k\u00e4ynnist\u00e4mist\u00e4.<\/li>\n<\/ul>\n<h3>Tiedon laatu<\/h3>\n<ul>\n<li>Varmista, ett\u00e4 hidastuminen on vakaata ja tasaista eik\u00e4 ep\u00e4s\u00e4\u00e4nn\u00f6llist\u00e4.<\/li>\n<li>K\u00e4yt\u00e4 n\u00e4ytteenottotaajuutta, joka on riitt\u00e4v\u00e4 korkeimmille kiinnostaville taajuuksille, jotta v\u00e4ltet\u00e4\u00e4n <a href=\"https:\/\/vibromera.eu\/fi\/glossary\/aliasing\/\">aliasointi<\/a>.<\/li>\n<li>Pid\u00e4 kierroslukumittarin signaali koko ajan hyv\u00e4n\u00e4 - katkos turmelee vaihej\u00e4ljen.<\/li>\n<li>Ker\u00e4\u00e4 riitt\u00e4v\u00e4sti keskiarvoja kullakin nopeudella.<\/li>\n<\/ul>\n<h3>Toistettavuus<\/h3>\n<ul>\n<li>Suorita useita coastdown-kokeita tuloksen tarkistamiseksi.<\/li>\n<li>Vertaile niit\u00e4 yhdenmukaisuuden vuoksi.<\/li>\n<li>Merkitt\u00e4v\u00e4 vaihtelu eri ajojen v\u00e4lill\u00e4 viittaa pikemminkin muuttuviin olosuhteisiin tai mittausongelmaan kuin koneen todelliseen muutokseen.<\/li>\n<\/ul>\n<p>Coastdown-analyysi on roottoridynamiikan perusdiagnostiikka, joka antaa kattavan kuvan koneen dynaamisesta k\u00e4ytt\u00e4ytymisest\u00e4 yhden luonnollisen hidastuksen perusteella. Tuloksena saadut Bode- ja vesiputousdiagrammit paikallistavat kriittiset nopeudet, m\u00e4\u00e4ritt\u00e4v\u00e4t vaimennuksen ja antavat insin\u00f6\u00f6rille mahdollisuuden verrata konetta suunnitteluennusteisiin tai historiallisiin perustasoihin. Juuri t\u00e4m\u00e4n vuoksi coastdown-testaus on olennaisen t\u00e4rke\u00e4\u00e4 py\u00f6rivien laitteiden k\u00e4ytt\u00f6\u00f6noton validoinnissa, jaksottaisessa kunnonarvioinnissa ja resonanssivianetsinn\u00e4ss\u00e4.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/fi\/glossary\/\">\u2190 Takaisin p\u00e4\u00e4hakemistoon<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Opi rullausanalyysist\u00e4, v\u00e4r\u00e4htelyn mittaamisesta luonnollisen hidastuvuuden aikana kriittisten nopeuksien tunnistamiseksi, vaimennuksen arvioimiseksi ja roottorin dynamiikan k\u00e4ytt\u00e4ytymisen kuvaamiseksi.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[114,109],"tags":[],"class_list":["post-78","glossary","type-glossary","status-publish","hentry","category-analysis","category-glossary"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/glossary\/78","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":1,"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/glossary\/78\/revisions"}],"predecessor-version":[{"id":101328,"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/glossary\/78\/revisions\/101328"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/media?parent=78"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/categories?post=78"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/fi\/wp-json\/wp\/v2\/tags?post=78"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}