{"id":232,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/shaft-bow\/"},"modified":"2026-05-23T23:06:20","modified_gmt":"2026-05-23T23:06:20","slug":"shaft-bow","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/bs\/glossary\/shaft-bow\/","title":{"rendered":"\u0160to je savijanje vratila? Uzroci, detekcija i korekcija"},"content":{"rendered":"<h1>Razumijevanje savijanja vratila u rotiraju\u0107im strojevima<\/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\/232?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\/232?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\/232?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\/232?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\/232?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\/232?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\/232?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\/232?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\/232?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\/232?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 bow<\/strong> (poznato i kao savijanje vratila, savijanje rotora ili jednostavno \"savijanje\") je stanje u kojem <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/rotor\/\">rotor<\/a> vratilo je razvilo stalnu ili polustalno zakrivljenost, \u010dime njegova geometrijska osa odstupa od ravne linije izme\u0111u le\u017eaja. Za razliku od privremenih <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/run-out\/\">run-out<\/a> uzrokovanih labavom komponentom ili ekscentri\u010dnom monta\u017eom, savijanje vratila predstavlja stvarnu deformaciju materijala vratila. Proizvodi <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/vibration\/\">vibration<\/a> simptome koji na prvi pogled nalikuju na <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/unbalance\/\">unbalance<\/a> \u2014 jaku, sinkronu, rotaciju jednom po okretaju \u2014 ali se ne mo\u017ee lije\u010diti konvencionalnim <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/balancing\/\">balansiranje<\/a>. Rana prepoznavanja te razlike ono je \u0161to dijeli brzu popravku od dana beskrajnog balansiranja na vratilu koje nikada ne bi trebalo reagirati.<\/p>\n<h2>1. Definicija: \u0160to je savijanje vratila zapravo<\/h2>\n<p>Savr\u0161eno zdravi rotor ima masnu os i geometrijsku os koje su obje ravne i gotovo podudaraju\u0107e. Savijanje vratila ru\u0161i tu sliku savijanjem geometrijske ose u luk. Savijanje mo\u017ee biti malo \u2014 nekoliko stotinki milimetra je dovoljno da bude va\u017eno na strojevima velike brzine \u2014 ali budu\u0107i da se savijena srednja linija vi\u0161e ne prolazi kroz centre le\u017eaja, rotor je prisiljen vratiti se oko linije koju ne \u017eeli da se vrti.<\/p>\n<p>Vrijedi odvojiti savijanje od njegovih bliskih srodnika. <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/bent-shaft\/\">bent shaft<\/a> je u osnovi ista gre\u0161ka opisana sa mehani\u010dke strane, dok <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/eccentricity\/\">eccentricity<\/a> opisuje rotor \u010diji je centar mase pomaknut bez da je vratilo samo zakrivljeno. Pravo <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/run-out\/\">run-out<\/a> mo\u017ee biti mehani\u010dko (stvarno geometrijsko odstupanje) ili elektri\u010dno (la\u017eno \u010ditanje od <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/proximity-probe\/\">sondu blizine<\/a> vi\u0111enja materijala ili magnetske varijacije). Savijanje vratila je specifi\u010dno geometrijska deformacija tela vratila, i zato nikakva dodana masa negdje drugdje ne mo\u017ee ga zaista \"uravnote\u017eiti.\"<\/p>\n<h2>2. Vrste savijanja vratila<\/h2>\n<p>Savijanje osovine najbolje se kategorizira prema njenom uzroku i vremenu trajanja, jer svaki tip zahteva druga\u010diji pristup.<\/p>\n<h3>2.1 Trajno mehani\u010dko savijanje<\/h3>\n<p>Ovo je plasti\u010dna (trajna) deformacija materijala osovine \u2014 metal je prekora\u010dio granicu te\u010denja i ne\u0107e se vratiti u originalni oblik. \u010cesti uzroci uklju\u010duju:<\/p>\n<ul>\n<li>Mehani\u010dko preoptere\u0107enje ili udar<\/li>\n<li>Neprikladan transport ili rukovanje tokom odr\u017eavanja<\/li>\n<li>Pad rotora<\/li>\n<li>Prekomerne savijne napone tokom rada<\/li>\n<li>Gre\u0161ke pri proizvodnji ili neprikladan toplotni tretman<\/li>\n<\/ul>\n<p>\u010cim se osovina plasti\u010dno deformira, savijanje ostaje \u010dak i kada je osovina u mirovanju i sva spoljna optere\u0107enja su uklonjena. Ovo je karakteristika koja razlikuje trajno savijanje od toplinskog: prisutno je u hladnom stanju i prisutno na radnoj klupi.<\/p>\n<h3>2.2 Toplinsko savijanje (prolazno)<\/h3>\n<p>Also called <strong>thermal bow<\/strong> ili <strong>hot bow<\/strong>, ovo je privremeno stanje uzrokovano neujedna\u010denim zagrevanjem po obodu osovine. Toplija strana se \u0161iri vi\u0161e od hladnije strane, forsiraju\u0107i osovinu u krivinu sa toplom stranom na konveksnoj (spoljnoj) povr\u0161ini. Tipi\u010dni uzroci su:<\/p>\n<ul>\n<li>Asimetri\u010dni izvori toplote (vru\u0107i procesni fluid na jednoj strani, hladan vazduh na drugoj)<\/li>\n<li>Trenje le\u017eaja koje zageva jednu stranu osovine<\/li>\n<li>Trenje rotora koje generi\u0161e lokalizovano zagrevanje<\/li>\n<li>Zagrevanje suncem kod vanjske opreme<\/li>\n<li>Nepravilne procedure zagrevanja za velike turbine<\/li>\n<\/ul>\n<p>Toplinsko savijanje se obi\u010dno nestaje \u010dim se osovina ravnomerno ohladi ili postigne toplinsku ravnote\u017eu. Potpuni mehanizam, prevencija i praksa rada sa ure\u0111ajem za okretanje detaljno su pokriveni u <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/thermal-bow\/\">thermal bow<\/a>. Va\u017eno je napomenuti da ponovljeni ciklusi toplinskog savijanja mogu na kraju prisiliti osovinu da prema\u0161i granicu te\u010denja i ostavi\u0107e trajnu deformaciju \u2014 tako da &#8220;privremeni&#8221; problem koji se dugo ignori\u0161e postaje trajni.<\/p>\n<h3>2.3 Savijanje usled rezidualnog napona<\/h3>\n<p>Unutra\u0161nji reziduelni naponi ostali nakon zavarivanja, toplinskog tretmana ili obrade mogu uzrokovati da se osovina polako savija tokom vremena, posebno kada radne temperature ili radna optere\u0107enja dozvole da se ti zaklju\u010dani naponi opuste. Ova vrsta savijanja mo\u017ee se pojaviti mesecima ili godinama nakon pu\u0161tanja u rad, \u0161to \u010dini periodi\u010dke provere ravnosti vrednim na kriti\u010dnim rotorima.<\/p>\n<h2>3. Uzroci savijanja osovine<\/h2>\n<p>Razumijevanje osnovnog uzroka sprje\u010dava ponovljenu pojavu i pokazuje na ispravku. Uzroci padaju u tri kategorije.<\/p>\n<h3>3.1 Mehani\u010dki uzroci<\/h3>\n<ul>\n<li><strong>Overload:<\/strong> rad pri optere\u0107enjima koja prelaze projektovane granice.<\/li>\n<li><strong>Neispravno skladi\u0161tenje:<\/strong> skladi\u0161tenje osovina horizontalno bez odgovaraju\u0107e podr\u0161ke, dozvoljavanje slijeganja od te\u010denja tokom vremena \u2014 posebno na dugim, vitkim rotorijima ostavljenim mjesecima na dva krajnja oslonca.<\/li>\n<li><strong>Mishandling:<\/strong> dizanje pomo\u0107u osovine umjesto propisanih mjesta za dizanje.<\/li>\n<li><strong>Nesre\u0107a ili udar:<\/strong> pad, sudar ili \u0161teta od stranog objekta.<\/li>\n<li><strong>Zablokirana le\u017eaja:<\/strong> zablokirani le\u017eaj mo\u017ee uzrokovati savijanje osovine pod pogonskim momentom.<\/li>\n<\/ul>\n<h3>3.2 Termi\u010dki uzroci<\/h3>\n<ul>\n<li><strong>Neravnomjerna zagrijanja:<\/strong> neujedna\u010dena raspodjela temperature oko opsega osovine.<\/li>\n<li><strong>Brze promjene temperature:<\/strong> termi\u010dki \u0161ok tijekom pokretanja ili zaustavljanja.<\/li>\n<li><strong>Hot spots:<\/strong> lokalizirano zagrijavanje od trenja, kontakta ili procesnih uvjeta.<\/li>\n<li><strong>Neadekvatno zagrijavanje:<\/strong> pokretanje hladnih turbina ili velikih ma\u0161ina prebrzo.<\/li>\n<li><strong>Postupci zaustavljanja:<\/strong> dozvoliti da vru\u0107i osovinu prestane da se rotira prije nego \u0161to se ohladi (termi\u010dka sag).<\/li>\n<\/ul>\n<h3>3.3 Materijalni i proizvodni uzroci<\/h3>\n<ul>\n<li><strong>Lo\u0161a kvaliteta materijala:<\/strong> uklju\u010dci, praznine ili nehomogenosti materijala.<\/li>\n<li><strong>Nepravilna toplinska obrada:<\/strong> preostale napetosti od \u0437\u0430\u043a\u0430\u0459\u0438\u0432\u0430\u045a\u0430 ili otpu\u0161tanja.<\/li>\n<li><strong>Deformacija pri zavarivanju:<\/strong> asimetri\u010dno zavarivanje koje stvara preostale napetosti.<\/li>\n<li><strong>Napetosti pri ob\u0440\u0430\u0434\u0438:<\/strong> napetosti inducirane tijekom proizvodnje koje se osloba\u0111aju tijekom rada.<\/li>\n<\/ul>\n<h2>4. Kako savljena osovina uzrokuje vibracije<\/h2>\n<p>Savljena osovina generi\u0161e vibracije kroz dva razli\u010dita ali me\u0111usobno djeluju\u0107a mehanizma.<\/p>\n<h3>4.1 Geometrijska nebalansiranost<\/h3>\n<p>Kada se savljena osovina rotira, njezina zakrivljena sredinska linija opisuje konus ili drugi necirkularan putanju. \u010cak i ako je raspodjela mase rotora savr\u0161eno ujedna\u010dena, savljena geometrija se pona\u0161a kao ekscentri\u010dna rotiraju\u0107a masa: baca centar gravitacije izvan ose vrtnje i generi\u0161e <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/centrifugal-force\/\">centrifugalna sila<\/a> koja se pove\u0107ava kvadratom brzine, proizvodeci jaku 1\u00d7 vibraciju na <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/running-speed\/\">running speed<\/a>. Upravo je zato savijanje maskirano kao nebalansiranost u spektru.<\/p>\n<h3>4.2 Momentno optere\u0107enje le\u017eajeva<\/h3>\n<p>Zakrivljenost tako\u0111er name\u0107e stati\u010dki i rotiraju\u0107i moment savijanja koji se prenosi direktno na le\u017eajeve, \u0161to uzrokuje kolebaju\u0107a optere\u0107enja le\u017eajeva i vibraciju sjedi\u0161ta. Na ve\u0107im rotorima je upravo to momentno optere\u0107enje ono \u0161to pokre\u0107e ubrzano tro\u0161enje le\u017eaja i, u ekstremnim slu\u010dajevima, kontakt izme\u0111u rotora i stacionarnih brtvi. Te\u0161ko savljen rotor \u010dija se savijanje nalazi blizu <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/critical-speed\/\">critical speed<\/a> mo\u017ee proizvesti poja\u010dan, ponekad alarmantan, odziv tijekom pokretanja.<\/p>\n<h2>5. Detektovanje savijanja osovine<\/h2>\n<p>Po\u0161to se savijanje i prava masenena neravnote\u017ea dijele istu 1\u00d7 signaturu, razlikovanje izme\u0111u njih je su\u0161tina dijagnoze. Najmo\u0107niji diskriminator je pona\u0161anje pri vrlo malim brzinama i tijekom promjene temperature.<\/p>\n<h3>5.1 Usporedba Simptoma: Savijanje nasuprot Neravnote\u017ei<\/h3>\n<table border=\"1\" style=\"width:100%; border-collapse:collapse;\">\n<tr>\n<th>Characteristic<\/th>\n<th>Unbalance<\/th>\n<th>Shaft Bow<\/th>\n<\/tr>\n<tr>\n<td>Frekvencija Vibracija<\/td>\n<td>1\u00d7 brzinu vrtnje<\/td>\n<td>1\u00d7 brzinu vrtnje<\/td>\n<\/tr>\n<tr>\n<td>Odnos faze<\/td>\n<td>Konzistentna, ista u svakom trenutku<\/td>\n<td>Mo\u017ee se mijenjati tijekom zagrijavanja<\/td>\n<\/tr>\n<tr>\n<td>Vibracija pri Sporom Okretanju<\/td>\n<td>Prisutna (proporcionalna brzini\u00b2)<\/td>\n<td>Prisutna i \u010desto zna\u010dajna \u010dak i pri vrlo malim brzinama<\/td>\n<\/tr>\n<tr>\n<td>Odgovor na Balansiranje<\/td>\n<td>Vibracija smanjena ispravnim balansiranm<\/td>\n<td>Minimalno ili nikakvo pobolj\u0161anje; mo\u017ee se pogr\u0161ati<\/td>\n<\/tr>\n<tr>\n<td>Toplinska Osjetljivost<\/td>\n<td>Relativno stabilna s temperaturom<\/td>\n<td>Zna\u010dajno se mijenja tijekom zagrijavanja\/hla\u0111enja<\/td>\n<\/tr>\n<tr>\n<td>Mjerenje Trkanja<\/td>\n<td>Malo kada je rotor u mirovanju<\/td>\n<td>Veliko trkanje \u010dak i u mirovanju (trajno savijanje)<\/td>\n<\/tr>\n<\/table>\n<p>Najtipi\u010dniji red je linija sporog okretanja. Sila neravnote\u017ee pada prema nuli dok brzina pada jer se skalira s kvadratom brzine vrtnje; trajno savijanje, koje je fiksni geometrijski pomak, i dalje pokazuje znatno trkanje i 1\u00d7 gibanje pri kretanju brzinom hoda. To je test koji razrije\u0161ava izlazak iz sumnje.<\/p>\n<h3>5.2 Dijagnosti\u010dki Testovi<\/h3>\n<h4>5.2.1 Mjerenje Sporog Okretanja<\/h4>\n<p>Rotiraite vratilo veoma sporo \u2014 obi\u010dno 5\u201310% radne brzine \u2014 i mjerite <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/run-out\/\">run-out<\/a> with a <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/proximity-probe\/\">sondu blizine<\/a> ili pomo\u0107u komparatora. \u0412\u0435\u043b\u0438\u043a runout pri sporom okretanju ukazuje na savijanje vratila ili mehani\u010dki runout, a ne na nebalansu \u010dija je centrifugalna sila zanemariva pri tako niskoj brzini. Vektor spor\u043e\u0433 okretanja se tako\u0111e bele\u017ei kako bi mogao biti oduzet od podataka vibracija pri radu, izoliraju\u0107i pravi dinami\u010dki odgov\u043e\u0440 od komponente stati\u010dkog savijanja.<\/p>\n<h4>5.2.2 Fazni Pomak pri Ga\u0161enju<\/h4>\n<p>Pratite vibracijom <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/phase-angle\/\">phase angle<\/a> dok ma\u0161ina spokojno usporava. Pravi nebalans odr\u017eava konstantnu <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/phase\/\">phase<\/a> bez obzira na brzinu (dalje od rezonancije). Termi\u010dki savijeno vratilo obi\u010dno pokazuje fazu koja se pomera kako se rotor hladi, i crtanjem amplitude i faze zajedno na <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/bode-plot\/\">Bode plot<\/a> ili <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/polar-plot\/\">polar plot<\/a> \u010dini razliku mnogo lak\u0161om za \u010ditanje nego neobra\u0111eni brojevi.<\/p>\n<h4>5.2.3 Test Termi\u010dkog Savijanja<\/h4>\n<p>Za sumnjano termi\u010dko savijanje, pratite vibracijom tokom pokretanja i zagrevanja. Termi\u010dko savijanje obi\u010dno pokazuje vibracijom <em>increasing<\/em> kako se ma\u0161ina zagrev\u0430, zatim se stabilizuje ili pada jednom nakon dostizanja termi\u010dke ravnote\u017ee \u2014 zrcalna slika gre\u0161ke koja se \u010disto pove\u0107ava sa brzinom.<\/p>\n<h4>5.2.4 Proveravanje Runout-\u0430 izvan Ma\u0161ine<\/h4>\n<p>Uklonite rotor, podr\u017eite ga na V-blokovima ili izme\u0111u ste\u017enjaka tokarilice, i polako ga rotiraite dok mjerite radijalni runout pomo\u0107u komparatora. Zna\u010dajan runout \u2014 obi\u010dno ve\u0107i od 0,001 in (25 \u00b5m) \u2014 potvr\u0111uje trajno savijanje. Ova laboratorijska proverka je definitivni dokaz, jer vratilo koje gleda ravno na ma\u0161ini ali savijeno na V-blokovima govori sasvim drugu pri\u010du od onog \u0161to je savijeno na oba mjesta.<\/p>\n<h4>5.2.5 Vizuelna Inspekcija<\/h4>\n<p>Na velikim vratilima, gledanje du\u017e du\u017eine vratila ili kori\u0161\u0107enje opti\u010dkih metoda kao \u0161to su <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/laser-shaft-alignment\/\">lasersko poravnanje<\/a> oprema mo\u017ee otkriti o\u010digledan savoj koji samo oko mogu\u0107no ne bi moglo detektovati.<\/p>\n<h2>6. Metode Korekcije<\/h2>\n<p>Ispravna korekcija zavisi od te\u017eine i tipa savijanja. Nema jedinstvenog re\u0161enja koje odgovara svakom slu\u010daju.<\/p>\n<h3>6.1 Za Trajno Mehani\u010dko Savijanje<\/h3>\n<h4>6.1.1 Pravljenje Vratila<\/h4>\n<p>Za blago do umjereno savijanje \u2014 obi\u010dno ispod 0,005 in (125 \u00b5m) \u2014 vratilo se ponekad mo\u017ee hladn\u043e ili toplo ispravljati pomo\u0107u hidrauli\u010dnih pre\u0161\u0430. Vratilo je podr\u017eano i pa\u017eljivo prekriveno kako bi se plasti\u010dno deformisalo natrag prema ravnom, proces koji zahteva speci\u0458alizovanu opremu, ve\u0161te tehni\u010dare, i strpljenje, jer prekomer\u0442o ispravljanje jednostavno stvara savoj u suprotnom smery.<\/p>\n<h4>6.1.2 Toplotno rastere\u0107enje naprezanja<\/h4>\n<p>Toplinska obrada vratila kako bi se oslobodila rezidualna naprezanja mo\u017ee smanjiti ili eliminisati savijanje koje je poticalo iz zaklju\u010danog proizvodnog ili zavarenog naprezanja. Ovo zahteva odgovaraju\u0107u opremu pe\u0107nice i strogu kontrolu procesa kako bi se izbeglo uno\u0161enje nove deformacije.<\/p>\n<h4>6.1.3 Zamjena vratila<\/h4>\n<p>Za te\u0161ko savijanje, ili u kriti\u010dnoj primeni, zamjena je \u010desto najpouzdaniji odgovor. Tro\u0161ak novog vratila mora se vagati prema vremenu zastoja i stvarnom riziku da poku\u0161aj ispravljanja ne uspe ili se vremenom vratili oporavi.<\/p>\n<h4>6.1.4 &#8220;Balansiranje oko savijanja&#8221;<\/h4>\n<p>U nekim slu\u010dajevima \u2014 posebno u velikim turbinama \u2014 <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/correction-weight\/\">tegovi za korekciju<\/a> mo\u017ee se izra\u010dunati i postaviti kako bi se suprotstavila <em>effect<\/em> savijanja na radnoj brzini. Ovo ne ispravljanja vratila; samo poni\u0161tava 1\u00d7 silu koju savijanje proizvodi. To je ograni\u010dena, generalno privremena mera, i ostavlja rotor \u010dija <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/residual-unbalance\/\">rezidualnu neuravnote\u017eenost<\/a> samo izgleda prihvatljivo na jednoj specifi\u010dnoj brzini i temperaturi.<\/p>\n<h3>6.2 Za toplisko savijanje<\/h3>\n<h4>6.2.1 Promene u proceduri rada<\/h4>\n<ul>\n<li>Primeni sporo, stepenaste procedure zagrevanja.<\/li>\n<li>Odr\u017eavaj kontinuiranu operaciju okretnog mehanizma tokom ga\u0161enja kako bi se spre\u010dilo toplinsko padanje.<\/li>\n<li>Pa\u017eljivije kontroli\u0161i pripu\u0161tanja pare ili temperature procesne te\u010dnosti.<\/li>\n<li>Osiguraj simetri\u010dno zagrevanje i hla\u0111enje.<\/li>\n<\/ul>\n<h4>6.2.2 Modifikacije dizajna<\/h4>\n<ul>\n<li>Dodaj izolaciju kako bi se smanjili toplotni gradijenti.<\/li>\n<li>Instaliraj grejne jakne za uniformno zagrevanje.<\/li>\n<li>Pobolj\u0161aj sistem hla\u0111enja kako bi se izjedna\u010dila distribucija temperature.<\/li>\n<\/ul>\n<h4>6.2.3 Operacija okretnog mehanizma<\/h4>\n<p>Za velike turbine, pokretanje dovodnog zup\u010danika (spora rotacijska pogonska jedinica) tijekom zagrijavanja i hla\u0111enja dr\u017ei osovinu u rotaciji tako da se toplina ravnomjerno distribuira du\u017e perimetra, \u010dime se sprje\u010dava temperatura gradijent koja bi ina\u010de mogla saviti rotor.<\/p>\n<h2>7. Provjera Rotora na Terenu<\/h2>\n<p>Kada je osovina ispravljena, zamijenjena ili procjenjena dovoljno ravna za rad, rotor se i dalje mora dinami\u010dki provjeriti u vlastitim le\u017eajima \u2014 samo mjerenje radijalne tolerancije na radnoj klupi ne dokazuje da \u0107e se vrtiti glatko pri brzini rada. Prenosivi dvokanalnih analizator poput <a href=\"https:\/\/vibromera.eu\/bs\/proizvod\/balanset-1\/\">Balanset-1A<\/a> \u010dini to prakti\u010dnim na terenu: hvata vektor spore rotacije, zatim mjeri 1\u00d7 <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/phase\/\">amplitudu i fazu<\/a> kroz cijelim rasponom brzine tako da in\u017eenjer mo\u017ee odvojiti bilo koju preostalu komponentu savijanja od stvarnog neuravnote\u017eenosti mase. Samo kada spora rotacija potvrdi da je osovina dovoljno ravna, ima smisla krenuti s trn balansom <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/balancing\/\">balance<\/a> \u2014 u kojem trenutku isti instrument izra\u010dunava <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/influence-coefficient\/\">koeficijenti utjecaja<\/a> i provjerava kona\u010dan rezultat prema <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/iso-21940-11\/\">ISO 21940-11<\/a> razred balansiranja. Tu dozvoljenu vrijednost preostale neuravnote\u017eenosti mo\u017eete unaprijed izra\u010dunati sa <a href=\"https:\/\/vibromera.eu\/bs\/calculators\/residual-unbalance-iso1940\/\">Kalkulator rezidualne nebalanciranosti (ISO 21940-11)<\/a> prije nego \u0161to po\u010dnete.<\/p>\n<h2>8. Strategije Prevencije<\/h2>\n<p>Sprje\u010davanje savijanja osovine je daleko jeftinije i br\u017ee od ispravljanja.<\/p>\n<h3>8.1 Dizajn i Proizvodnja<\/h3>\n<ul>\n<li>Koristite odgovaraju\u0107e postupke toplinskog tretiranja kako biste minimizirali preostale naprezanja.<\/li>\n<li>Dizajnirajte odgovaraju\u0107u krutost osovine za aplikaciju.<\/li>\n<li>Odredite materijale prikladne za toplinsku okru\u017eenja.<\/li>\n<\/ul>\n<h3>8.2 Instalacija i Odr\u017eavanje<\/h3>\n<ul>\n<li>Uvijek podizite rotore koriste\u0107i ozna\u010dene to\u010dke za dizanje, nikada ne putem osovine.<\/li>\n<li>Skladi\u0161tite rezervne rotore sa odgovaraju\u0107om potporom kako biste sprije\u010dili propadanje \u2014 idealno rotirane povremeno ili potporane blizu \u017eurnala.<\/li>\n<li>Izbjegavajte mehani\u010dki \u0161ok tijekom rukovanja.<\/li>\n<li>Periodi\u010dki provjerite ravnost osovine (godi\u0161nje ili prema rasporedu proizvo\u0111a\u010da&#8217;s).<\/li>\n<\/ul>\n<h3>8.3 Operation<\/h3>\n<ul>\n<li>Pratite procedure zagrijavanja i zaustavljanja proizvod\u017ea\u010da.<\/li>\n<li>Izbjegavajte brze promjene temperature.<\/li>\n<li>Pratite znakove termi\u010dkog savijanja tijekom pokretanja.<\/li>\n<li>Odmah istra\u017eite sve neo\u010dekivane promjene u fazi vibracija.<\/li>\n<\/ul>\n<h2>9. Utjecaj na procedure uravnote\u017eivanja<\/h2>\n<p>Poku\u0161aj uravnote\u017eivanja savijenog vratila je op\u0107enito neuspje\u0161an i mo\u017ee biti aktivno kontraproduktivan:<\/p>\n<ul>\n<li><strong>Neu\u010dinkovite korekcije:<\/strong> te\u017eine izra\u010dunate za neuravnote\u017eenost mase ne mogu ispraviti geometrijsko savijanje.<\/li>\n<li><strong>Maskiranje problema:<\/strong> djelomi\u010dno &#8220;uspje\u0161no&#8221; uravnote\u017eivanje savijenog vratila mo\u017ee privremeno smanjiti vibracije dok ostaje pravi defekt \u2014 i njegov utjecaj na le\u017eajeve \u2014 nepromijenjen.<\/li>\n<li><strong>Wasted time:<\/strong> ponovljeni poku\u0161aji uravnote\u017eivanja koji se odbijaju konvergirati sami su \u043a\u0440\u0430\u0441\u043d\u0438 znak za savijanje.<\/li>\n<li><strong>Mogu\u0107nostna o\u0161te\u0107enja:<\/strong> nakupljanje velikih korekcijskih te\u017eina na savijenom vratilu pove\u0107ava naprezanja i mo\u017ee izazvati dalja o\u0161te\u0107enja ili \u010dak umor materijala s pucanjima.<\/li>\n<\/ul>\n<p><strong>Best practice:<\/strong> always check for shaft bow before you begin balancing, especially if the rotor has any history of rough handling, thermal events, or vibration that no one has been able to explain. A two-minute slow-roll check can save a wasted afternoon and a damaged shaft.<\/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 o savijanju vratila, stalnoj ili privremeno zakrivljenosti vratila rotora koja uzrokuje simptome vibracije sli\u010dne neuravnote\u017eenosti, ali zahtijeva razli\u010dite dijagnosti\u010dke i korekcijske pristupe.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,110],"tags":[],"class_list":["post-232","glossary","type-glossary","status-publish","hentry","category-glossary","category-vibration-diagnostics"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/bs\/wp-json\/wp\/v2\/glossary\/232","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\/232\/revisions"}],"predecessor-version":[{"id":101458,"href":"https:\/\/vibromera.eu\/bs\/wp-json\/wp\/v2\/glossary\/232\/revisions\/101458"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/bs\/wp-json\/wp\/v2\/media?parent=232"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/bs\/wp-json\/wp\/v2\/categories?post=232"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/bs\/wp-json\/wp\/v2\/tags?post=232"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}