{"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\/bs\/glossary\/shaft-whip\/","title":{"rendered":"\u0160to je vrtnja vratila? Obja\u0161njenje ozbiljne nestabilnosti rotora"},"content":{"rendered":"<h1>Razumijevanje vrtnje vratila u rotacijskim ma\u0161inama<\/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\/bs\/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\/bs\/product\/balanset-1\/\" title=\"Prijenosni balanser i analizator vibracija 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 kompletan set prenosivi balanser i analizator vibracija\" 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\/bs\/product-category\/devices\/\" rel=\"tag\">Ure\u0111aji<\/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\/bs\/product\/balanset-1\/\" title=\"Prijenosni balanser i analizator vibracija Balanset-1A\">Prijenosni balanser i analizator vibracija 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> + PDV (ako se primjenjuje)<\/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=\"\/bs\/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=\"Dodaj u korpu\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj u korpu\" 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=\"\/bs\/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=\"Add to cart: \u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d has been added to your cart\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj u korpu<\/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\/bs\/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\/bs\/product\/vibration-sensor\/\" title=\"Senzor vibracija\">\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 senzor vibracija u detaljnom prikazu\" 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\/bs\/product-category\/parts\/\" rel=\"tag\">dijelovi<\/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\/bs\/product\/vibration-sensor\/\" title=\"Senzor vibracija\">Senzor vibracija<\/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> + PDV (ako se primjenjuje)<\/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=\"\/bs\/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=\"Dodaj u korpu\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj u korpu\" 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=\"\/bs\/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=\"Add to cart: \u201cVibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u201cVibration sensor\u201d has been added to your cart\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj u korpu<\/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\/bs\/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\/bs\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"opti\u010dki senzor (laserski tahometar)\">\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=\"opti\u010dki senzor (laserski tahometar)\" 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\/bs\/product-category\/parts\/\" rel=\"tag\">dijelovi<\/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\/bs\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"opti\u010dki senzor (laserski tahometar)\">opti\u010dki senzor (laserski tahometar)<\/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> + PDV (ako se primjenjuje)<\/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=\"\/bs\/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=\"Dodaj u korpu\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj u korpu\" 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=\"\/bs\/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=\"Add to cart: \u201cOptical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u201cOptical Sensor (Laser Tachometer)\u201d has been added to your cart\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj u korpu<\/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\/bs\/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\/bs\/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 set za balansiranje rotora: kofer za no\u0161enje, multikanalnu jedinicu za kondicioniranje signala, ru\u010dni analizator, magnetnu bazu, senzore vibracija i spiralne kablove.\" 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\/bs\/product-category\/devices\/\" rel=\"tag\">Ure\u0111aji<\/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\/bs\/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> + PDV (ako se primjenjuje)<\/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=\"\/bs\/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=\"Dodaj u korpu\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj u korpu\" 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=\"\/bs\/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=\"Add to cart: \u201cBalanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u201cBalanset-4\u201d has been added to your cart\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj u korpu<\/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\/bs\/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\/bs\/product\/magnet-stand\/\" title=\"Magnetno postolje 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=\"Magnet base.\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36.webp 1280w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span 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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 sadr\u017eaj seta sa interfejsnom jedinicom, senzorima, tahometrom i dodatnom opremom\" 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\/bs\/product-category\/devices\/\" rel=\"tag\">Ure\u0111aji<\/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\/bs\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dinami\u010dki balanser \u201cBalanset-1A\u201d OEM\">Dinami\u010dki balanser \u201cBalanset-1A\u201d 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> + PDV (ako se primjenjuje)<\/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=\"\/bs\/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=\"Dodaj u korpu\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj u korpu\" 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=\"\/bs\/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=\"Add to cart: \u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"\u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d has been added to your cart\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj u korpu<\/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>Shaft whip<\/strong> \u2014 known as <em>oil whip<\/em> kada nastane u hidrodinami\u010dkim le\u017eajevima \u2014 je ozbiljan oblik <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/rotor-instability\/\">nestabilnost rotora<\/a> obilje\u017een nasilnim <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/self-excited-vibration\/\">samouzbudivana vibracija<\/a>. Javlja se kada rotor koji radi u le\u017eajevima sa uljnim filmom prekora\u010di kriti\u010dnu grani\u010dnu brzinu, obi\u010dno oko dvostruke prve <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/critical-speed\/\">critical speed<\/a>. Kada uhvati vrtnju, frekvencija vibracija se \"zaklju\u010da\" na prvu prirodnu frekvenciju rotora <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/natural-frequency\/\">prirodne frekvencije<\/a> i ostaje tu bez obzira na dalji porast brzine, sa amplitudom ograni\u010denom samo zazorima le\u017eaja \u2014 ili katastrofalnim otkazom. To je jedan od najopasnih stanja u ma\u0161inama visoke brzine jer se javlja odjednom, brzo dosti\u017ee destruktivne nivoe u roku od nekoliko sekundi, i ne mo\u017ee se ispraviti <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/balancing\/\">balansiranje<\/a> ili bilo kojom drugom konvencionalnom korekcijom. Zahteva neposredan prestanak rada pra\u0107en promenama sistema le\u017eaja da se sprekne ponovna pojava.<\/p>\n<h2>1. Tok razvoja: Od vrtnje ulja do vrtnje vratila<\/h2>\n<p>Vrtnja vratila se retko javlja bez upozorenja \u2014 to je krajnja ta\u010dka \u010detvorostepene progresije koju pa\u017eljivi analiziraju\u0107i in\u017eenjer mo\u017ee zaustaviti mnogo pre destruktivne faze.<\/p>\n<h3>Faza 1 \u2014 Stabilan rad<\/h3>\n<ul>\n<li>Rotor radi ispod praga nestabilnosti.<\/li>\n<li>Only normal <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/forced-vibration\/\">prisilna vibracija<\/a> from <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/unbalance\/\">unbalance<\/a> is present.<\/li>\n<li>Uljni film le\u017eaja obezbe\u0111uje stabilnu, dobro prigu\u0161enu podr\u0161ku.<\/li>\n<\/ul>\n<h3>Faza 2 \u2014 Po\u010detak vrtnje ulja<\/h3>\n<p>Kako brzina raste iznad otprilike 2\u00d7 prve kriti\u010dne brzine, <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/oil-whirl\/\">oil whirl<\/a> begins:<\/p>\n<ul>\n<li>A <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/sub-synchronous\/\">sub-synchronous<\/a> vibracija se pojavljuje sa oko 0,43\u20130,48\u00d7 brzine vratila.<\/li>\n<li>Amplituda je u po\u010detku umerena i zavisi od brzine.<\/li>\n<li>Frekvencija vrtnje proporcionalno raste sa brzinom vratila.<\/li>\n<li>Mo\u017ee biti povremena ili kontinuirana.<\/li>\n<li>Mo\u017ee koegzistirati sa normalnom 1\u00d7 vibracijom od neuravnote\u017eenosti.<\/li>\n<\/ul>\n<h3>Faza 3 \u2014 Prelazna vrtnja<\/h3>\n<p>Kada rastu\u0107a frekvencija vrtnje ulja dostigne dovoljno da se poklopi sa prvom prirodnom frekvencijom, pona\u0161anje se odjednom menja:<\/p>\n<ul>\n<li><strong>Zaklju\u010davanje frekvencije:<\/strong> frekvencija vibracija prestaje da prati brzinu i fiksira se na prirodnu frekvenciju.<\/li>\n<li><strong>Rezonantna amplifikacija:<\/strong> amplituda drasti\u010dno raste jer je sistem sada u <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/resonance\/\">resonance<\/a>.<\/li>\n<li><strong>Sudden onset:<\/strong> prelazak od precesije na vrtnju mo\u017ee biti prakti\u010dki trenuta\u010dan.<\/li>\n<li><strong>Nezavisnost od brzine:<\/strong> daljnje pove\u0107anje brzine vi\u0161e ne mijenja frekvenciju \u2014 samo amplitudu.<\/li>\n<\/ul>\n<h3>Faza 4 \u2014 Vrtnja vratila (kriti\u010dno stanje)<\/h3>\n<ul>\n<li>Vibracija ostaje na konstantnoj frekvenciji \u2014 prvoj prirodnoj frekvenciji, obi\u010dno 40\u201360 Hz.<\/li>\n<li>Amplituda dosti\u017ee 5\u201320 puta ve\u0107u od normalne vibracije neubalanserosti.<\/li>\n<li>Vratilo mo\u017ee udariti u limite zazora le\u017eaja.<\/li>\n<li>Le\u017eaji i ulje se brzo zagrijavaju.<\/li>\n<li>Catastrophic failure can follow within minutes if the machine is not stopped.<\/li>\n<\/ul>\n<h2>2. Fizi\u010dki mehanizam<\/h2>\n<p>Vrtnja je pokretana dinamikom fluidnog filma ulja u le\u017eaju, \u0161to je razlog za\u0161to se ne mo\u017ee uravnote\u017eiti \u2014 destabiliziraju\u0107a energija dolazi iz maziva, a ne iz te\u0161ke to\u010dke. Niz se odvija na sljede\u0107i na\u010din:<\/p>\n<ol>\n<li><strong>Formiranje uljnog klina:<\/strong> rotiraju\u0107e vratilo vu\u010de mazivo kroz le\u017eaj, grade\u0107i visokopritisni klin.<\/li>\n<li><strong>Tangencijalna sila:<\/strong> taj klin tla\u010di na oslonac u smjeru okomitom na radijalni pomak \u2014 unakrsna, tangencijalna sila.<\/li>\n<li><strong>Orbit motion:<\/strong> tangencijalna sila tjera sredi\u0161te vratila da se <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/whirl\/\">whirl<\/a> in an <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/orbit\/\">orbit<\/a> otprilike polovinom brzine vratila.<\/li>\n<li><strong>Ekstrakcija energije:<\/strong> orbitalno gibanje izvla\u010di energiju iz rotacije vratila da bi se odr\u017ealo \u2014 karakteristika samouzbunjene vibracije.<\/li>\n<li><strong>Zaklju\u010davanje u rezonanciji:<\/strong> kada se frekvencija orbite podudari s prirodnom frekvencijom, rezonancija amplificira gibanje.<\/li>\n<li><strong>Limit cycle:<\/strong> amplituda se pove\u0107ava dok je ne ograni\u010di zazor le\u017eaja ili neuspeh.<\/li>\n<\/ol>\n<p>Po\u0161to se pobuda skalira sa pona\u0161anjem maziva, bilo \u0161ta \u0161to pove\u0107ava krutost filmskog sloja maziva ili sistem <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/damping\/\">damping<\/a> pove\u0107ava brzinu pri kojoj po\u010dinje nestabilnost.<\/p>\n<h2>3. Dijagnosti\u010dka identifikacija<\/h2>\n<p>Vibriranje vratila ostavlja nepogre\u0161ivog otiska u podacima vibracija, \u0161to omogu\u0107ava ranoj prepoznavanju ako se pregledavaju pravi dijagrami.<\/p>\n<h3>Karakteristika vibracije<\/h3>\n<ul>\n<li><strong><a href=\"https:\/\/vibromera.eu\/bs\/glossary\/spectrum\/\">Spectrum<\/a>:<\/strong> veliki vrh na podsinhronoj (prvoj prirodnoj) frekvenciji koji ostaje na mjestu bez obzira na promjene brzine.<\/li>\n<li><strong><a href=\"https:\/\/vibromera.eu\/bs\/glossary\/waterfall-plot\/\">Waterfall plot<\/a>:<\/strong> podsinhronog komponenta se pojavljuje kao vertikalna linija (konstantna frekvencija) umjesto dijagonalne linije komponente proporcijalne brzini.<\/li>\n<li><strong><a href=\"https:\/\/vibromera.eu\/bs\/glossary\/order-analysis\/\">Order analysis<\/a>:<\/strong> razlomljeni red koji <em>decreases<\/em> as speed rises \u2014 for example drifting from 0.5\u00d7 to 0.4\u00d7 to 0.35\u00d7 \u2014 because the frequency is fixed while speed climbs.<\/li>\n<li><strong>Orbit:<\/strong> veliki kru\u017ena ili elipti\u010dna orbita na prirodnoj frekvenciji.<\/li>\n<\/ul>\n<p>A <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/bode-plot\/\">Bode plot<\/a> taken on <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/coastdown\/\">coastdown<\/a> dalje razdvaja pravu rezonanciu od vibriranja, po\u0161to se zaklju\u010dana podsinhkrona linija pona\u0161a bitno druga\u010dije od sinhronog vrha kriti\u010dne brzine.<\/p>\n<h3>Onset Speed<\/h3>\n<ul>\n<li><strong>Tipi\u010dni prag:<\/strong> 2,0\u20132,5\u00d7 prve kriti\u010dne brzine.<\/li>\n<li><strong>Bearing-dependent:<\/strong> ta\u010dan prag varira sa kon\u0441\u0442\u0440\u0443kcijom le\u017eaja, <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/preload\/\">preload<\/a>, i viskoznosti maziva.<\/li>\n<li><strong>Sudden onset:<\/strong> malo pove\u0107anje brzine mo\u017ee baciti rotor iz stabilnog u potpuno nestabilan.<\/li>\n<\/ul>\n<h2>4. Strategije prevencije<\/h2>\n<p>Po\u0161to vibriranje ne mo\u017ee biti balansirano, prevencija se fokusira na <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/journal-bearing\/\">le\u017eaja<\/a> i na kako se ma\u0161ina koristi.<\/p>\n<h3>Izmjene Konstrukcije Le\u017eaja<\/h3>\n<p><strong>1. Le\u017eaji sa pokretnim plo\u010dama<\/strong> \u2014 najjednostavnije rje\u0161enje. Plo\u010de se neovisno kre\u0107u, eliminiraju\u0107i destabiliziraju\u0107u unakrsnu silu; inherentno su stabilne u \u0161irokom rasponu brzina i predstavljaju industrijski standard za brzohodnu turboma\u0161ineriju.<\/p>\n<p><strong>2. Le\u017eaji sa pritiskom brane<\/strong> \u2014 modificirani cilindri\u010dni le\u017eaj sa \u017eljebom ili branom koji pove\u0107avaju efektivno prigu\u0161enje i krutost; jeftiniji od plo\u010de naginju\u0107eg tipa, ali manje efikasan.<\/p>\n<p><strong>3. Predzoptere\u0107enje le\u017eaja<\/strong> \u2014 primjena radijalnog predzoptere\u0107enja (\u010desto kroz dizajn sa ekscentri\u010dnom rupom) pove\u0107ava krutost i podi\u017ee prag nestabilnosti.<\/p>\n<p><strong>4. <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/squeeze-film-damper\/\">Prigu\u0161iva\u010di sa film-om od ulja<\/a><\/strong> \u2014 vanjski element prigu\u0161enja koji okru\u017euje le\u017eaj i dodaje prigu\u0161enje bez redizajniranja samog le\u017eaja, pogodno za nadogradnje.<\/p>\n<h3>Operativne mjere<\/h3>\n<ul>\n<li><strong>Ograni\u010denje brzine:<\/strong> odr\u017eavati maksimalnu brzinu ispod praga \u2014 tipi\u010dno ispod 1,8\u00d7 prve kriti\u010dne brzine.<\/li>\n<li><strong>Upravljanje optere\u0107enjem:<\/strong> raditi sa ve\u0107imoptere\u0107enjima le\u017eaja gdje je mogu\u0107e, jeroptere\u0107enje pove\u0107ava prigu\u0161enje.<\/li>\n<li><strong>Kontrola temperature ulja:<\/strong> hladnije ulje je viskoznije i stabilizuju\u0107e.<\/li>\n<li><strong>Monitoring:<\/strong> continuous <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/vibration-monitoring\/\">monitoringa vibracija<\/a> sa alarmima koji specifi\u010dno prate sub-sinhronog frekvencijskog opsega.<\/li>\n<\/ul>\n<h2>5. Posledice i O\u0161te\u0107enja<\/h2>\n<h3>Neposredni u\u010dinci<\/h3>\n<ul>\n<li><strong>Nasilna vibracija:<\/strong> amplitude mogu dosegnuti nekoliko milimetara (stotine mil).<\/li>\n<li><strong>Noise:<\/strong> glasan, karakteristi\u010dan zvuk potpuno razli\u010dit od normalnog rada.<\/li>\n<li><strong>Brzo zagrijavanje le\u017eaja:<\/strong> temperatures can climb 20\u201350 \u00b0C in minutes.<\/li>\n<li><strong>Degradacija ulja:<\/strong> visoka temperatura i intenzivno smicanje naru\u0161avaju mazivo.<\/li>\n<\/ul>\n<h3>Potencijalni kvarovi<\/h3>\n<ul>\n<li><strong>Bearing wipe:<\/strong> babbit obloga se topi i o\u010disti.<\/li>\n<li><strong>Shaft damage:<\/strong> ogrebotine, pucanja ili trajno savijanje.<\/li>\n<li><strong><a href=\"https:\/\/vibromera.eu\/bs\/glossary\/seal-defects\/\">Seal failure<\/a>:<\/strong> preteranska gibanja vratila uni\u0161tavaju zaptivke.<\/li>\n<li><strong>Lom vratila:<\/strong> high-cycle <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/fatigue\/\">fatigue<\/a> od nasilne oscilacije.<\/li>\n<li><strong><a href=\"https:\/\/vibromera.eu\/bs\/glossary\/coupling-defects\/\">O\u0161te\u0107enje spojnice<\/a>:<\/strong> prenesene sile uni\u0161tavaju spojnice.<\/li>\n<\/ul>\n<h2>6. Srodne pojave<\/h2>\n<h3>Oil Whirl<\/h3>\n<p><a href=\"https:\/\/vibromera.eu\/bs\/glossary\/oil-whirl\/\">Oil whirl<\/a> je pretkazatelj vrtnje: isti mehanizam, ali frekvencija se jo\u0161 nije zakovala na prirodnu frekvenciju. Njena amplituda je ni\u017ea, njena frekvencija prati brzinu pri ~0.43\u20130.48\u00d7, i u nekim primjenama je dozvoljiva.<\/p>\n<h3>Steam Whirl<\/h3>\n<p><a href=\"https:\/\/vibromera.eu\/bs\/glossary\/steam-whirl\/\">Steam whirl<\/a> je sli\u010dna nestabilnost u parnim turbinama, pokretana aerodinami\u010dkim silama u labirintnim zaptivkama umjesto u filmom ulja le\u017eaja. Pokazuje istu podsinkrenu vibraciju zakovanja na prirodnu frekvenciju.<\/p>\n<h3>Vrtnja sa suhim trenjem<\/h3>\n<p>Ova varijanta nastaje na mjestima zaptivki ili od <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/rotor-rub\/\">kontakta rotor-stator<\/a>. Trenje osigurava destabiliziraju\u0107i mehanizam; rje\u0111a je od uljne vrtnje ali jednako opasna i zahtijeva druga\u010dije rje\u0161enje \u2014 eliminisanje kontakta ili pobolj\u0161anje zaptivke.<\/p>\n<h2>7. Studija slu\u010daja: Vrtnja vratila kompresora<\/h2>\n<p><strong>Scenario:<\/strong> brzohodnog centrifugalnog kompresora na obi\u010dnim cilindri\u010dnim le\u017eajima.<\/p>\n<ul>\n<li><strong>Normalan rad:<\/strong> 12.000 o\/min sa vibracijama od 2.5 mm\/s.<\/li>\n<li><strong>Pove\u0107anje brzine:<\/strong> operator je pove\u0107ao na 13.500 o\/min za ve\u0107i kapacitet.<\/li>\n<li><strong>Onset:<\/strong> pri 13.200 o\/min razvila se najednom nasilna vibracija.<\/li>\n<li><strong>Symptoms:<\/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>Hitna akcija:<\/strong> hitan obustav je sprije\u010dio o\u0161te\u0107enje le\u017eaja.<\/li>\n<li><strong>Root cause:<\/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>Rje\u0161enje:<\/strong> plain bearings were replaced with tilting-pad bearings, allowing safe operation to 15,000 rpm.<\/li>\n<\/ul>\n<h2>8. Standards, Practice, and Field Tools<\/h2>\n<ul>\n<li><strong><a href=\"https:\/\/vibromera.eu\/bs\/glossary\/api-684\/\">API 684<\/a>:<\/strong> requires a rotordynamic stability analysis for high-speed turbomachinery.<\/li>\n<li><strong>API 617:<\/strong> specifies bearing types and stability requirements for centrifugal compressors.<\/li>\n<li><strong>ISO 10814:<\/strong> provides guidance on bearing selection for stability.<\/li>\n<li><strong>Industry practice:<\/strong> tilting-pad bearings are standard for equipment running above 2\u00d7 the first critical speed.<\/li>\n<\/ul>\n<p>In the field, the everyday safeguard is to catch the precursor before the rotor ever reaches whip. A portable two-channel analyser such as the <a href=\"https:\/\/vibromera.eu\/bs\/proizvod\/balanset-1\/\">Balanset-1A<\/a> lets an engineer record amplitude, <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/phase\/\">phase<\/a> and spectrum during a controlled run-up and watch the sub-synchronous band directly \u2014 if a stable 1\u00d7 signature suddenly grows a locked, speed-independent peak near the first natural frequency, the rotor is on the edge of whip and the speed must be backed off. The same instrument confirms afterwards that the underlying unbalance is within tolerance, ruling it out as a contributing excitation. Shaft whip remains a catastrophic failure mode best handled by correct bearing selection and design; recognising its distinctive sub-synchronous, frequency-locked signature is what enables rapid diagnosis and the decisive emergency response that protects expensive high-speed equipment.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/bs\/glossary\/\">\u2190 Povratak na glavnu stranicu<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Saznajte vi\u0161e o bi\u010danju vratila, ozbiljnoj nestabilnosti samobuzbudne vibracije u le\u017eajima s teku\u0107om folijom koja se javlja pri visokim brzinama, uzrokuju\u0107i nasilne oscilacije na prirodnoj frekvenciji.<\/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\/bs\/wp-json\/wp\/v2\/glossary\/235","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/bs\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/bs\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":2,"href":"https:\/\/vibromera.eu\/bs\/wp-json\/wp\/v2\/glossary\/235\/revisions"}],"predecessor-version":[{"id":102183,"href":"https:\/\/vibromera.eu\/bs\/wp-json\/wp\/v2\/glossary\/235\/revisions\/102183"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/bs\/wp-json\/wp\/v2\/media?parent=235"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/bs\/wp-json\/wp\/v2\/categories?post=235"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/bs\/wp-json\/wp\/v2\/tags?post=235"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}