{"id":219,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/rotor-instability\/"},"modified":"2026-05-23T22:53:31","modified_gmt":"2026-05-23T22:53:31","slug":"rotor-instability","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/bs\/glossary\/rotor-instability\/","title":{"rendered":"\u0160to je nestabilnost rotora? Samo-pobu\u0111ena vibracija"},"content":{"rendered":"<h1>Razumijevanje nestabilnosti rotora<\/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\/219?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\/219?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\/219?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\/219?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\/219?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\/219?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\/219?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\/219?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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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\/219?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\/219?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>Nestabilnost rotora<\/strong> je stanje u rotacijskoj machineri u kojem <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/self-excited-vibration\/\">samouzbudivana vibracija<\/a> razvija se i raste bez ograni\u010denja, ograni\u010dena samo nelinearnim efektima ili potpunim otkazom. Za razliku od vibracija iz <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/unbalance\/\">unbalance<\/a> ili <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/misalignment\/\">misalignment<\/a> \u2014 which are <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/forced-vibration\/\">prisilne vibracije<\/a> pogonjena vanjskim silama \u2014 nestabilnost je samoodr\u017eivaju\u0107a oscilacija koja kontinuirano crpi energiju iz stalne rotacije vratila i pumpa je u vibracijsko gibanje. To je jedan od najopasnijih fenomena u <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/rotor-dynamics\/\">rotor dynamics<\/a>: mo\u017ee se pojaviti odjednom, porasti na destruktivne amplitude unutar sekundi, te \u2014 odlu\u010duju\u0107e \u2014 ne mo\u017ee se lije\u010diti sa <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/balancing\/\">balansiranje<\/a> ili poravnavanjem. Zahtijeva odmah ga\u0161enje i korekciju temeljnog destabiliziraju\u0107eg mehanizma.<\/p>\n<h2>1. Prinu\u0111ena vs. Samo-pobu\u0111ena vibracija<\/h2>\n<p>Najva\u017eniji koncept za razumijevanje nestabilnosti je razlika izme\u0111u vibracija koje se nametaju izvanjskom silom i vibracija koje se same po sebi poja\u010davaju.<\/p>\n<h3>Prinudne vibracije (stabilne)<\/h3>\n<p>Ve\u0107ina vibracija u strojevima je prinudna. Vanjska sila \u2014 nebalansirani rotor, neporavnanje, savijeni vratilo \u2014 pokre\u0107e gibanje, a sustav jednostavno odgovara:<\/p>\n<ul>\n<li>Amplituda je proporcionalna veli\u010dini sile koja je pokre\u0107e.<\/li>\n<li>The frequency matches the forcing frequency (1\u00d7, 2\u00d7, and so on).<\/li>\n<li>Uklonite silu i vibracije nestaju.<\/li>\n<li>Sustav je stabilan; vibracije se nikada ne mogu pove\u0107avati bez ograni\u010denja.<\/li>\n<\/ul>\n<h3>Samouzbu\u0107ene vibracije (nestabilne)<\/h3>\n<p>Nestabilnost je bitno razli\u010dita. Energija se crpi iz samog vrtnje umjesto da je dostavi vanjska sila:<\/p>\n<ul>\n<li>Amplituda se eksponencijalno pove\u0107ava kada je prekora\u010dena kriti\u010dna brzina vrtnje.<\/li>\n<li>Frekvencija se obi\u010dno nalazi na ili blizu <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/natural-frequency\/\">prirodne frekvencije<\/a>, i obi\u010dno je <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/sub-synchronous\/\">sub-synchronous<\/a>.<\/li>\n<li>Nastavlja se i poja\u010dava \u010dak i kada je nebalansirani rotor savr\u0161eno ispravljen.<\/li>\n<li>Sustav je nestabilan; samo zaustavljanje ili fizi\u010dka promjena mogu ga zaustaviti.<\/li>\n<\/ul>\n<h2>2. \u010cesti tipovi nestabilnosti rotora<\/h2>\n<h3>Oil whirl<\/h3>\n<p><a href=\"https:\/\/vibromera.eu\/bs\/glossary\/oil-whirl\/\">Oil whirl<\/a> je naj\u010de\u0161\u0107a nestabilnost u le\u017eajima sa <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/journal-bearing\/\">le\u017eaja<\/a> sustavima. Uljni klin koji podupire vratilo razvija tangencijalnu silu koja prisiljava osnovu le\u017eaja u zrazmak le\u017eaja. Pojavljuje se pri pribli\u017eno 0,42\u20130,48\u00d7 brzine vrtnje (subsinkreno), obi\u010dno kada brzina prema\u0161uje dva puta prvi <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/critical-speed\/\">critical speed<\/a>, i pokazuje se kao visoka subsinkrena vibracija koja se pogor\u0161ava pove\u0107anjem brzine. Promjene dizajna le\u017eaja, dodani <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/preload\/\">preload<\/a>, ili offsetne konfiguracije su obi\u010dni remediji.<\/p>\n<h3>Uljno vrtlarenje (te\u0161ka nestabilnost)<\/h3>\n<p>Oil whip is the dangerous mature form of oil whirl. As the rotor accelerates, the whirl frequency rises until it locks onto the first natural frequency and then stays there, regardless of further speed increases. The result is very high amplitude at a constant frequency, capable of destroying bearings and shaft within minutes. The transition from a manageable whirl to a destructive whip is the reason instability is never to be tolerated.<\/p>\n<h3>Vrtlarenje pare i aerodinami\u010dke nestabilnosti<\/h3>\n<p><a href=\"https:\/\/vibromera.eu\/bs\/glossary\/steam-whirl\/\">Steam whirl<\/a> javlja se u parnim turbinama opremljenim labiryntskim brtvama, gdje aerodinami\u010dke cross-coupling sile u procjepima brtvila uzrokuju sub-sinkronu oscilaciju blizu prirodne frekvencije pri visokim diferencijalnim pritiscima. Ko\u010dnice za okretanje, anti-vortex ure\u0111aji i revidirana geometrija brtvila su tipi\u010dna rje\u0161enja.<\/p>\n<h3>Shaft whip<\/h3>\n<p><a href=\"https:\/\/vibromera.eu\/bs\/glossary\/shaft-whip\/\">Shaft whip<\/a> je op\u0161ta oznaka za nekoliko mehanizama samouzbu\u0111ivanja, uklju\u010duju\u0107i unutra\u0161nje (histerezno) prigu\u0161enje u materijalu vratila, dry-friction whip nastao na brtvilima ili trenjem, te aerodinami\u010dke ili hidrodinami\u010dke cross-coupling sile. \u0160ira porodica <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/whirl\/\">whirl and whip<\/a> pojave sve dijele isti samoprotjecaju\u0107i prijenos energije.<\/p>\n<h2>3. Karakteristike i simptomi<\/h2>\n<h3>Potpis vibracija<\/h3>\n<p>Nestabilnost stvara karakteristi\u010dan skup otisaka u podacima:<\/p>\n<ul>\n<li><strong>Sub-sinkrona frekvencija:<\/strong> a dominant component below 1\u00d7 running speed, typically around 0.4\u20130.5\u00d7.<\/li>\n<li><strong>Nezavisnost od brzine:<\/strong> kada nestabilnost zaprije\u010di, frekvencija ostaje nepromijenjena \u010dak i pri promjenama brzine.<\/li>\n<li><strong>Rapid growth:<\/strong> amplituda raste eksponencijalno \u010dim se prije\u0111e kriti\u010dna brzina.<\/li>\n<li><strong>Velika amplituda:<\/strong> mo\u017ee dosegnuti 2\u201310 puta ve\u0107u amplitudu od obi\u010dne vibracije neuravnote\u017eenosti.<\/li>\n<li><strong>Napredna precesija:<\/strong> the <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/orbit\/\">shaft orbit<\/a> rotira u istom smjeru kao i samo vratilo.<\/li>\n<\/ul>\n<h3>Pona\u0161anje pri po\u010detku<\/h3>\n<p>Nestabilnost se upravlja grani\u010dnom brzinom. Ispod nje sistem je stabilan i prisutna je samo prisilna vibracija; pri grani\u010dnoj brzini mali poreme\u0107aj je dovoljan da okine po\u010detak; i iznad nje nestabilnost se brzo razvija. Rano u \u017eivotu stroja mo\u017ee se povremeno bljeskaviti prije nego \u0161to se stabilizira u kontinuiranu rastu\u0107i oscillaciju.<\/p>\n<h2>4. Dijagnosti\u010dka identifikacija<\/h2>\n<p>Klju\u010d za dijagnozu je odvajanje samouzbu\u0111ene nestabilnosti od obi\u010dne prisilne vibracije. Kontrast je jasan:<\/p>\n<table border=\"1\" style=\"width:100%; border-collapse:collapse;\">\n<tr>\n<th>Characteristic<\/th>\n<th>Neuravnote\u017eenost (prisilna)<\/th>\n<th>Nestabilnost (samouzbu\u0111ena)<\/th>\n<\/tr>\n<tr>\n<td>Frequency<\/td>\n<td>1\u00d7 brzinu vrtnje<\/td>\n<td>Sub-sinkrona (\u010desto ~0,45\u00d7)<\/td>\n<\/tr>\n<tr>\n<td>Amplituda u odnosu na brzinu<\/td>\n<td>Raste glatko sa brzinom\u00b2<\/td>\n<td>Nagao po\u010detak iznad granice<\/td>\n<\/tr>\n<tr>\n<td>Odgovor na uravnote\u017eavanje<\/td>\n<td>Vibracija smanjena<\/td>\n<td>Nema pobolj\u0161anja uop\u0107e<\/td>\n<\/tr>\n<tr>\n<td>Frekvencija u odnosu na brzinu<\/td>\n<td>Prati brzinu (konstantan red)<\/td>\n<td>Konstantna frekvencija (promenljiv red)<\/td>\n<\/tr>\n<tr>\n<td>Pona\u0161anje pri zaustavljanju<\/td>\n<td>Smanjuje se sa brzinom<\/td>\n<td>Mo\u017ee da persisira kratko nakon pada brzine<\/td>\n<\/tr>\n<\/table>\n<h3>Potvr\u0111ivanje nestabilnosti<\/h3>\n<p>Nekoliko tehnika re\u0161ava pitanje odlu\u010duju\u0107e. <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/order-analysis\/\">Order analysis<\/a> pokazuje komponentu koja zadr\u017eava konstantnu frekvenciju dok se njen red menja; a <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/waterfall-plot\/\">waterfall plot<\/a> otkriva liniju frekvencije koja odbija da prati brzinu; balansiranje nema uticaja na subsinhronog vrh; i <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/orbit\/\">orbit analysis<\/a> pokazuje precessiju unapred na prirodnoj frekvenciji. Prenosivi dvokanalski analizator kao \u0161to je <a href=\"https:\/\/vibromera.eu\/bs\/proizvod\/balanset-1\/\">Balanset-1A<\/a> je dobro prilago\u0111en za prikupljanje ovog dokaza na terenu \u2014 bele\u017eenjem subsinhronog komponente, rastom njene amplitude sa brzinom, i linije 1\u00d7 sa oba strane \u2014 tako da in\u017eenjer mo\u017ee razlikovati pravu nestabilnost od jednostavnog neuravnote\u017eenosti pre nego \u0161to odlu\u010di da li je balansiranje \u010dak i vredno poku\u0161aja. Potvr\u0111ivanje da je gre\u0161ka samoobustavljena spre\u010dava skupu gre\u0161ku poku\u0161aja balansiranja problema koji balansiranje ne mo\u017ee re\u0161iti.<\/p>\n<h2>5. Prevencija i ubla\u017eavanje<\/h2>\n<h3>Razmatranja dizajna<\/h3>\n<ul>\n<li><strong>Odgovaraju\u0107e prigu\u0161enje:<\/strong> sistemi le\u017eajeva moraju da obezbede dovoljno <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/damping\/\">damping<\/a> da potisnu po\u010detak nestabilnosti.<\/li>\n<li><strong>Izbor le\u017eaja:<\/strong> odaberite vrste i konfiguracije sa dobrim uro\u0111enim prigu\u0161enjem, kao \u0161to su le\u017eajevi sa nagnute podmeta\u010de ili prednagnutom.<\/li>\n<li><strong>Optimizacija krutosti:<\/strong> postavite razumnu razmenu vratilo-le\u017eaja <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/stiffness\/\">stiffness<\/a> ratios.<\/li>\n<li><strong>Margina radne brzine:<\/strong> projektujem ma\u0161inu da radi ispod pragova njene nestabilnosti brzine.<\/li>\n<\/ul>\n<h3>Rje\u0161enja za dizajn le\u017eaja<\/h3>\n<ul>\n<li><strong>Le\u017eaji sa nagibnom plo\u010dom:<\/strong> inherentno stabilni, standardan izbor za rad na visokim brzinama.<\/li>\n<li><strong>Le\u017eaji sa prigu\u0161enim tlakom:<\/strong> modificirana geometrija koja pove\u0107ava efektivno prigu\u0161enje.<\/li>\n<li><strong>Prednapregnu\u0107e le\u017eaja:<\/strong> pove\u0107ava krutost i prigu\u0161enje te podi\u017ee prag brzine.<\/li>\n<li><strong><a href=\"https:\/\/vibromera.eu\/bs\/glossary\/squeeze-film-damper\/\">Prigu\u0161iva\u010di sa film-om od ulja<\/a>:<\/strong> elementi vanjskog prigu\u0161enja postavljeni oko le\u017eaja.<\/li>\n<\/ul>\n<h3>Operacijska rje\u0161enja<\/h3>\n<ul>\n<li><strong>Ograni\u010denje brzine:<\/strong> ograni\u010di maksimalnu brzinu ispod praga.<\/li>\n<li><strong>Load increase:<\/strong> ve\u0107e optere\u0107enje le\u017eaja mo\u017ee pro\u0161iriti marginu stabilnosti.<\/li>\n<li><strong>Kontrola temperature:<\/strong> temperatura ulja postavlja viskoznost, a viskoznost postavlja prigu\u0161enje.<\/li>\n<li><strong>Kontinuirano nadziranje:<\/strong> rana detekcija daje vrijeme za ga\u0161enje prije nego \u0161to do\u0111e do o\u0161te\u0107enja.<\/li>\n<\/ul>\n<h2>6. Hitna intervencija i analiza stabilnosti<\/h2>\n<p>Ako se nestabilnost pojavi tijekom rada, redoslijed reagiranja je jasan:<\/p>\n<ol>\n<li><strong>Djeluj odmah:<\/strong> smanjite brzinu ili zaustavite se odmah.<\/li>\n<li><strong>Nemojte poku\u0161avati uravnote\u017eavanje:<\/strong> ne mo\u017ee ispraviti nestabilnost i samo gubi kriti\u010dno vrijeme.<\/li>\n<li><strong>Dokumentiraj uvjete:<\/strong> zabele\u017ei brzinu po\u010detka, frekvenciju i napredovanje amplitude.<\/li>\n<li><strong>Istra\u017eite osnovni uzrok:<\/strong> identificirajte koji mehanizam \u2014 uljno vrtljanje, udar, parno vrtljanje ili vrtljanje izazvano trenjem \u2014 je u radu.<\/li>\n<li><strong>Primeni korekciju:<\/strong> promenite le\u017eajeve, zaptiva\u010de ili radne uslove u skladu sa tim.<\/li>\n<li><strong>Verifikuj ispravku:<\/strong> vratite u pogon oprezno, pod bliskom kontrolom.<\/li>\n<\/ol>\n<p>In\u017eenjeri predvi\u0111aju i projektuju stabilnost kroz formalnu analizu stabilnosti. Ovo uklju\u010duje izra\u010dunavanje svojstvenih vrednosti <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/rotor-bearing-system\/\">sistema rotor-le\u017eaja<\/a>: realni deo svake svojstvene vrednosti signalizira stabilnost \u2014 negativan je stabilan, pozitivan je nestabilan \u2014 dok izra\u010dunavanje locira grani\u010dne brzine na kojima se stabilnost menja. Rad obi\u010dno zavisi od specijalizovanog softvera za dinamiku rotora i uti\u010de na izbore dizajna koji garantuju adekvatne margine stabilnosti. Mada je znatno manje \u010desta od neuravnote\u017eenosti ili neuskla\u0111enosti, nestabilnost rotora je me\u0111u najozbiljnijim vibracijskih stanjima u rotacijskim ma\u0161inama, a prepoznavanje njenih mehanizama i simptoma je neophodno znanje za sve koji rade sa brzim ure\u0111ajima.<\/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 nestabilnosti rotora, opasnom stanju samouzbu\u017eene vibracije gdje energija rotacije odr\u017eava ili poja\u010dava oscilacije, \u0161to mo\u017ee dovesti do katastrofalnog otkaza.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,111],"tags":[],"class_list":["post-219","glossary","type-glossary","status-publish","hentry","category-glossary","category-rotor-balancing"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/bs\/wp-json\/wp\/v2\/glossary\/219","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":1,"href":"https:\/\/vibromera.eu\/bs\/wp-json\/wp\/v2\/glossary\/219\/revisions"}],"predecessor-version":[{"id":101404,"href":"https:\/\/vibromera.eu\/bs\/wp-json\/wp\/v2\/glossary\/219\/revisions\/101404"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/bs\/wp-json\/wp\/v2\/media?parent=219"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/bs\/wp-json\/wp\/v2\/categories?post=219"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/bs\/wp-json\/wp\/v2\/tags?post=219"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}