{"id":215,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/rotor-bar-defects\/"},"modified":"2026-07-03T09:57:24","modified_gmt":"2026-07-03T09:57:24","slug":"rotor-bar-defects","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/pt\/glossary\/rotor-bar-defects\/","title":{"rendered":"O que s\u00e3o defeitos nas barras do rotor? Barras quebradas em motores"},"content":{"rendered":"<h1>Entendendo os defeitos das barras do rotor<\/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\/pt\/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\/pt\/product\/balanset-1\/\" title=\"Equilibrador port\u00e1til e analisador de vibra\u00e7\u00f5es 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 kit completo de balanceador port\u00e1til e analisador de vibra\u00e7\u00f5es\" 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\/pt\/product-category\/devices\/\" rel=\"tag\">Dispositivos<\/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\/pt\/product\/balanset-1\/\" title=\"Equilibrador port\u00e1til e analisador de vibra\u00e7\u00f5es Balanset-1A\">Equilibrador port\u00e1til e analisador de vibra\u00e7\u00f5es 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> + IVA (se aplic\u00e1vel)<\/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=\"\/pt\/wp-json\/wp\/v2\/glossary\/215?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=\"Adicionar\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar\" 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=\"\/pt\/wp-json\/wp\/v2\/glossary\/215?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=\"Adiciona ao carrinho: \u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar<\/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\/pt\/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\/pt\/product\/vibration-sensor\/\" title=\"Sensor de vibra\u00e7\u00e3o\">\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=\"Grande plano do sensor de vibra\u00e7\u00e3o Balanset-1A\" 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\/pt\/product-category\/parts\/\" rel=\"tag\">Pe\u00e7as<\/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\/pt\/product\/vibration-sensor\/\" title=\"Sensor de vibra\u00e7\u00e3o\">Sensor de vibra\u00e7\u00e3o<\/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> + IVA (se aplic\u00e1vel)<\/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=\"\/pt\/wp-json\/wp\/v2\/glossary\/215?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=\"Adicionar\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar\" 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=\"\/pt\/wp-json\/wp\/v2\/glossary\/215?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=\"Adiciona ao carrinho: \u201cVibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u201cVibration sensor\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar<\/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\/pt\/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\/pt\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Sensor \u00f3tico (tac\u00f3metro laser)\">\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=\"Sensor \u00f3tico (tac\u00f3metro laser)\" 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\/pt\/product-category\/parts\/\" rel=\"tag\">Pe\u00e7as<\/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\/pt\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Sensor \u00f3tico (tac\u00f3metro laser)\">Sensor \u00f3tico (tac\u00f3metro laser)<\/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> + IVA (se aplic\u00e1vel)<\/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=\"\/pt\/wp-json\/wp\/v2\/glossary\/215?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=\"Adicionar\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar\" 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=\"\/pt\/wp-json\/wp\/v2\/glossary\/215?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=\"Adiciona ao carrinho: \u201cOptical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u201cOptical Sensor (Laser Tachometer)\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar<\/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\/pt\/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\/pt\/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=\"Kit de balanceamento de rotor Vibromera: estojo de transporte, condicionador de sinal multicanal, analisador port\u00e1til, base magn\u00e9tica, sensores de vibra\u00e7\u00e3o e cabos espiralados.\" 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\/pt\/product-category\/devices\/\" rel=\"tag\">Dispositivos<\/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\/pt\/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> + IVA (se aplic\u00e1vel)<\/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=\"\/pt\/wp-json\/wp\/v2\/glossary\/215?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=\"Adicionar\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar\" 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=\"\/pt\/wp-json\/wp\/v2\/glossary\/215?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=\"Adiciona ao carrinho: \u201cBalanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u201cBalanset-4\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar<\/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\/pt\/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\/pt\/product\/magnet-stand\/\" title=\"Suporte magn\u00e9tico 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=\"Base magn\u00e9tica.\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36.webp 1280w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/pt\/product-category\/parts\/\" rel=\"tag\">Pe\u00e7as<\/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\/pt\/product\/magnet-stand\/\" title=\"Suporte magn\u00e9tico Insize-60-kgf\">Suporte magn\u00e9tico Insize-60-kgf<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>46.00<\/span> + IVA (se aplic\u00e1vel)<\/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=\"\/pt\/wp-json\/wp\/v2\/glossary\/215?add-to-cart=1852\" data-quantity=\"1\" data-product_id=\"1852\" data-product_sku=\"MS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple 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https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-272x182.webp 272w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/pt\/product-category\/parts\/\" rel=\"tag\">Pe\u00e7as<\/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\/pt\/product\/reflective-tape\/\" title=\"Fita refletora\">Fita refletora<\/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>10.00<\/span> + IVA (se aplic\u00e1vel)<\/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=\"\/pt\/wp-json\/wp\/v2\/glossary\/215?add-to-cart=2329\" data-quantity=\"1\" data-product_id=\"2329\" data-product_sku=\"rt-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adicionar\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar\" 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=\"\/pt\/wp-json\/wp\/v2\/glossary\/215?add-to-cart=2329\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_2329\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"2329\" data-product_sku=\"rt-1\" aria-label=\"Adiciona ao carrinho: \u201cReflective tape\u201d\" rel=\"nofollow\" data-success_message=\"\u201cReflective tape\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_2329\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt\/product\/dynamic-balancer-balanset-1a\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt\/product\/dynamic-balancer-balanset-1a\/\" title=\"Balanceador din\u00e2mico &quot;Balanset-1A&quot; OEM\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Conte\u00fado do kit Balanset-1A com unidade de interface, sensores, tac\u00f3metro e acess\u00f3rios\" 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\/pt\/product-category\/devices\/\" rel=\"tag\">Dispositivos<\/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\/pt\/product\/dynamic-balancer-balanset-1a\/\" title=\"Balanceador din\u00e2mico &quot;Balanset-1A&quot; OEM\">Balanceador din\u00e2mico \"Balanset-1A\" OEM<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>1,735.00<\/span> + IVA (se aplic\u00e1vel)<\/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=\"\/pt\/wp-json\/wp\/v2\/glossary\/215?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=\"Adicionar\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar\" 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=\"\/pt\/wp-json\/wp\/v2\/glossary\/215?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=\"Adiciona ao carrinho: \u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"\u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar<\/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>Defeitos na barra do rotor<\/strong> \u2014 tamb\u00e9m designadas barras partidas ou fissuradas \u2014 s\u00e3o fraturas, fissuras ou liga\u00e7\u00f5es de alta resist\u00eancia nas barras condutoras de um motor de indu\u00e7\u00e3o de <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/motor-defects\/\">motor<\/a> rotor em gaiola de esquilo. Um rotor em gaiola de esquilo \u00e9 constitu\u00eddo por barras de alum\u00ednio ou cobre inseridas nas ranhuras de um n\u00facleo de ferro laminado, com ambas as extremidades de cada barra unidas por um par de an\u00e9is de curto-circuito (an\u00e9is de extremidade). Quando uma barra se fratura, ou a liga\u00e7\u00e3o de um anel de extremidade fissura, a corrente deixa de fluir corretamente pelo condutor danificado. O resultado \u00e9 assimetria eletromagn\u00e9tica, bin\u00e1rio pulsante e uma <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/vibration\/\">vibra\u00e7\u00e3o<\/a> e assinatura de corrente bem identific\u00e1vel, marcada por <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/sidebands\/\">faixas laterais<\/a> spaced at the <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/pole-pass-frequency\/\">frequ\u00eancia de passagem polar<\/a> (o n\u00famero de polos \u00d7 a frequ\u00eancia de escorregamento).<\/p>\n<p>As avarias nas barras do rotor representam aproximadamente 10\u201315% das falhas em motores de indu\u00e7\u00e3o. S\u00e3o particularmente perigosas porque s\u00e3o progressivas: uma \u00fanica <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/broken-rotor-bars\/\">barra de rotor partida<\/a> sobrecarrega as barras vizinhas, e o que come\u00e7a como um \u00fanico condutor fissurado pode propagar-se em m\u00faltiplas roturas, pulsa\u00e7\u00e3o severa de bin\u00e1rio e eventual destrui\u00e7\u00e3o do rotor se n\u00e3o for detetado atempadamente.<\/p>\n<h2>1. Tipos de Defeitos nas Barras do Rotor<\/h2>\n<p>Esta fam\u00edlia de avarias abrange v\u00e1rios mecanismos distintos, todos os quais perturbam a simetria el\u00e9trica do rotor de forma semelhante:<\/p>\n<ul>\n<li><strong>Barras de rotor partidas:<\/strong> Uma fratura completa de uma barra condutora, geralmente localizada pr\u00f3ximo de um anel de extremidade, onde se concentram as tens\u00f5es t\u00e9rmicas e mec\u00e2nicas. Uma rotura come\u00e7a quase sempre como uma fissura de fadiga e progride at\u00e9 uma separa\u00e7\u00e3o total.<\/li>\n<li><strong>An\u00e9is de curto-circuito fissurados:<\/strong> Fraturas nos an\u00e9is de curto-circuito que ligam as barras entre si, mais frequentemente na jun\u00e7\u00e3o barra-anel. O seu efeito el\u00e9trico \u00e9 id\u00eantico ao de uma barra partida. S\u00e3o mais comuns em m\u00e1quinas de grande porte, em motores com arranques frequentes e em cargas de elevada in\u00e9rcia.<\/li>\n<li><strong>Juntas de alta resist\u00eancia:<\/strong> Uma liga\u00e7\u00e3o el\u00e9trica deficiente entre a barra e o anel de extremidade, causada por defeitos de fabrico, ciclos t\u00e9rmicos ou corros\u00e3o. Os sintomas assemelham-se aos de uma barra partida, mas s\u00e3o frequentemente intermitentes e produzem assinaturas mais subtis do que uma rotura limpa.<\/li>\n<li><strong>Porosidade do rotor:<\/strong> Vazios de fundi\u00e7\u00e3o em rotores de alum\u00ednio injetado que reduzem a sec\u00e7\u00e3o transversal efetiva do condutor. A porosidade \u00e9 um defeito de fabrico que pode permanecer latente durante anos antes de progredir para fissuras e roturas.<\/li>\n<\/ul>\n<h2>2. Por Que Falham as Barras do Rotor<\/h2>\n<p>As avarias nas barras s\u00e3o impulsionadas por uma combina\u00e7\u00e3o de fatores t\u00e9rmicos, mec\u00e2nicos, de fabrico e operacionais que se agravam mutuamente ao longo da vida \u00fatil do motor.<\/p>\n<h3>Thermal stress<\/h3>\n<p>Cada arranque e paragem sujeita o rotor a ciclos de expans\u00e3o e contra\u00e7\u00e3o. Como o alum\u00ednio se dilata muito mais do que o n\u00facleo de ferro circundante, esta expans\u00e3o diferencial vai afrouxando as barras e fatigando as liga\u00e7\u00f5es. Os arranques frequentes provocam choques t\u00e9rmicos repetidos, e qualquer ponto de alta resist\u00eancia localizado transforma-se num ponto quente que acelera a degrada\u00e7\u00e3o.<\/p>\n<h3>Tens\u00e3o mec\u00e2nica<\/h3>\n<p>As barras condutoras tamb\u00e9m suportam <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/centrifugal-force\/\">for\u00e7a centr\u00edfuga<\/a> (significativas em m\u00e1quinas de alta velocidade), for\u00e7as eletromagn\u00e9ticas pulsantes durante o funcionamento normal, e as elevadas correntes de arranque que imp\u00f5em choque mec\u00e2nico. As <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/vibration-analysis\/\">vibra\u00e7\u00e3o<\/a> transmitidas pela carga acionada fatigam ainda mais as barras.<\/p>\n<h3>Defeitos de fabrico e condi\u00e7\u00f5es de opera\u00e7\u00e3o<\/h3>\n<p>A porosidade de fundi\u00e7\u00e3o, a fraca liga\u00e7\u00e3o barra-anel de extremidade, as inclus\u00f5es de material e o tratamento t\u00e9rmico inadequado lan\u00e7am as sementes de falhas futuras. Em servi\u00e7o, os fatores mais gravosos s\u00e3o os arranques frequentes, as cargas de elevada in\u00e9rcia com longos tempos de acelera\u00e7\u00e3o, os eventos de rotor bloqueado com as suas correntes extremas, e a monofasagem \u2014 funcionamento com uma fase de alimenta\u00e7\u00e3o perdida, o que for\u00e7a um padr\u00e3o de corrente fortemente assim\u00e9trico atrav\u00e9s da gaiola.<\/p>\n<h2>3. A Assinatura de Vibra\u00e7\u00e3o e Corrente<\/h2>\n<p>O sinal diagn\u00f3stico caracter\u00edstico de danos nas barras do rotor \u00e9 uma fam\u00edlia de bandas laterais agrupadas em torno da velocidade de funcionamento.<\/p>\n<ul>\n<li><strong>Pico central:<\/strong> 1\u00d7 velocidade de rota\u00e7\u00e3o (f<sub>r<\/sub>), o normal <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/running-speed\/\">velocidade de funcionamento<\/a> line.<\/li>\n<li><strong>Faixas laterais:<\/strong> pares sim\u00e9tricos em f<sub>r<\/sub> \u00b1 F<sub>P<\/sub>, f<sub>r<\/sub> \u00b1 2F<sub>P<\/sub>, f<sub>r<\/sub> \u00b1 3F<sub>P<\/sub>, where F<sub>P<\/sub> \u00e9 a frequ\u00eancia de passagem dos polos \u2014 o n\u00famero de polos \u00d7 a <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/slip-frequency\/\">frequ\u00eancia de escorregamento<\/a> (tipicamente alguns hertz).<\/li>\n<li><strong>Padr\u00e3o:<\/strong> bandas laterais sim\u00e9tricas e uniformemente espa\u00e7adas em intervalos de passagem dos polos \u2014 bastante diferentes das bandas laterais de <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/bearing-fault-frequencies\/\">bearing faults<\/a>, que se situam em torno das frequ\u00eancias de defeito.<\/li>\n<\/ul>\n<h3>C\u00e1lculo das frequ\u00eancias de escorregamento e de passagem dos polos<\/h3>\n<p>A frequ\u00eancia de escorregamento \u00e9 a diferen\u00e7a entre a velocidade s\u00edncrona e a velocidade real, expressa em hertz: f<sub>s<\/sub> = (N<sub>s\u00edncr.<\/sub> \u2212 N<sub>real<\/sub>) \/ 60, e o espa\u00e7amento das bandas laterais \u00e9 a frequ\u00eancia de passagem dos polos F<sub>P<\/sub> = poles \u00d7 f<sub>s<\/sub>. Considere um motor de 4 polos, 60 Hz, com velocidade s\u00edncrona de 1800 rpm a funcionar a 1750 rpm sob carga. Ent\u00e3o f<sub>s<\/sub> = (1800 \u2212 1750) \/ 60 = 0.833 Hz, F<sub>P<\/sub> = 4 \u00d7 0,833 = 3,33 Hz, e a linha da velocidade de rota\u00e7\u00e3o fica em 29,17 Hz. As bandas laterais aparecem, portanto, em 29,17 \u00b1 3,33 Hz \u2014 isto \u00e9, em 25,8 Hz e 32,5 Hz. Um <a href=\"https:\/\/vibromera.eu\/pt\/calculators\/harmonic-frequency-calculator\/\">calculadora de frequ\u00eancias harm\u00f3nicas<\/a> e um <a href=\"https:\/\/vibromera.eu\/pt\/calculators\/motor-slip-calculator\/\">calculadora de escorregamento do motor<\/a> torna esta convers\u00e3o simples quando est\u00e1 a configurar uma medi\u00e7\u00e3o no piso de f\u00e1brica.<\/p>\n<h3>Depend\u00eancia da carga<\/h3>\n<p>Como o escorregamento \u2014 e portanto a corrente que circula nas barras partidas \u2014 aumenta com a carga, as bandas laterais s\u00e3o sens\u00edveis \u00e0 carga. Sem carga s\u00e3o m\u00ednimas; com carga ligeira come\u00e7am a emergir; e a plena carga est\u00e3o no seu ponto mais forte e mais diagnostic\u00e1vel. A regra pr\u00e1tica \u00e9 simples: teste sempre um motor suspeito sob carga operacional normal para obter a melhor sensibilidade.<\/p>\n<h3>Assinatura de corrente (MCSA)<\/h3>\n<p>A An\u00e1lise da Assinatura de Corrente do Motor revela a mesma f\u00edsica no dom\u00ednio el\u00e9trico. Aqui as bandas laterais agrupam-se em torno da <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/electrical-frequency\/\">line frequency<\/a> em vez da velocidade de funcionamento, e aparecem em f<sub>linha<\/sub> \u00b1 2\u00b7s\u00b7f<sub>linha<\/sub>, onde s \u00e9 o escorregamento por unidade \u2014 o mesmo \u00b1F<sub>P<\/sub> spacing as in vibration, since 2\u00b7s\u00b7f<sub>linha<\/sub> = F<sub>P<\/sub>. Para o motor de 4 polos e 60 Hz acima (s = 50\/1800 \u2248 2.8%), isso coloca bandas laterais em 56.7 Hz e 63.3 Hz. A sua amplitude aumenta com o n\u00famero de barras partidas e, em alguns casos, a MCSA deteta a falha mais cedo do que a vibra\u00e7\u00e3o. A mesma f\u00edsica relacionada com o escorregamento est\u00e1 na base da relacionada <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/pole-pass-frequency\/\">frequ\u00eancia de passagem polar<\/a> used in <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/electrical-faults\/\">falha el\u00e9trica<\/a> diagnosis.<\/p>\n<h2>4. Dete\u00e7\u00e3o, Diagn\u00f3stico e Medi\u00e7\u00e3o em Campo<\/h2>\n<p>Resolver bandas laterais a apenas alguns hertz de um pico dominante da velocidade de rota\u00e7\u00e3o exige uma resolu\u00e7\u00e3o em frequ\u00eancia fina. Um procedimento disciplinado \u00e9 o seguinte:<\/p>\n<ol>\n<li><strong>Calcular o padr\u00e3o esperado:<\/strong> determine a velocidade s\u00edncrona a partir dos polos e da frequ\u00eancia da rede, me\u00e7a a velocidade real de funcionamento e calcule as frequ\u00eancias de escorregamento e de passagem dos polos.<\/li>\n<li><strong>Adquira um espectro de alta resolu\u00e7\u00e3o:<\/strong> use a fine <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/fft\/\">FFT<\/a> resolu\u00e7\u00e3o (melhor do que cerca de 0,2 Hz) para que as bandas laterais muito pr\u00f3ximas se separem claramente da linha 1\u00d7. A <a href=\"https:\/\/vibromera.eu\/pt\/calculators\/fft-resolution-calculator\/\">Calculadora de resolu\u00e7\u00e3o FFT<\/a> ajuda a escolher a gama e o n\u00famero de linhas corretos.<\/li>\n<li><strong>Procurar bandas laterais:<\/strong> look for symmetric peaks at 1\u00d7 \u00b1 pole-pass frequency and its multiples.<\/li>\n<li><strong>Teste em carga:<\/strong> capture dados com o motor a funcionar sob a sua carga operacional normal.<\/li>\n<li><strong>Confirme o padr\u00e3o:<\/strong> verifique se as bandas laterais s\u00e3o sim\u00e9tricas e correctamente espa\u00e7adas antes de emitir um diagn\u00f3stico.<\/li>\n<\/ol>\n<p>Este tipo de captura de espectro de alta resolu\u00e7\u00e3o \u00e9 exactamente o trabalho para que um instrumento port\u00e1til de dois canais como o <a href=\"https:\/\/vibromera.eu\/pt\/produto\/balanset-1\/\">Balanset-1A<\/a> foi concebido para isso. Trabalhando nos pr\u00f3prios rolamentos do motor \u00e0 velocidade de servi\u00e7o, regista diretamente na m\u00e1quina em funcionamento a linha da velocidade de rota\u00e7\u00e3o e as suas bandas laterais de passagem dos polos, para que possa confirmar no local um diagn\u00f3stico de barra partida sem desmontagem e depois acompanhar a sua gravidade ao longo do tempo.<\/p>\n<h3>Avalia\u00e7\u00e3o da severidade<\/h3>\n<p>Uma regra pr\u00e1tica amplamente utilizada classifica a gravidade pela altura das bandas laterais em rela\u00e7\u00e3o ao pico de 1\u00d7:<\/p>\n<ul>\n<li><strong>Banda lateral abaixo de 40% de 1\u00d7:<\/strong> possivelmente uma \u00fanica barra fissurada ou partida \u2014 continuar a monitorizar.<\/li>\n<li><strong>40\u201360% de 1\u00d7:<\/strong> uma barra partida confirmada (ou v\u00e1rias barras) \u2014 planifique a substitui\u00e7\u00e3o.<\/li>\n<li><strong>Acima de 60% de 1\u00d7:<\/strong> m\u00faltiplas barras partidas \u2014 a substitui\u00e7\u00e3o \u00e9 urgente.<\/li>\n<li><strong>Bandas laterais superiores ao pico de 1\u00d7:<\/strong> uma condi\u00e7\u00e3o grave que exige a\u00e7\u00e3o imediata.<\/li>\n<\/ul>\n<h2>5. Consequ\u00eancias e Progress\u00e3o<\/h2>\n<p>Sem interven\u00e7\u00e3o, um defeito isolado raramente permanece isolado. Os danos evoluem por fases reconhec\u00edveis:<\/p>\n<ul>\n<li><strong>Falha inicial (uma barra):<\/strong> ligeira pulsa\u00e7\u00e3o de bin\u00e1rio, pequenas bandas laterais emergentes e perda de desempenho m\u00ednima. Um motor pode funcionar durante meses neste estado.<\/li>\n<li><strong>Avarias progressivas (v\u00e1rias barras):<\/strong> a corrente que deveria ter circulado pela barra partida desvia-se para as barras adjacentes, sobreaquecendo-as; o stress t\u00e9rmico acaba por partir essas barras tamb\u00e9m. As pulsa\u00e7\u00f5es de bin\u00e1rio e a vibra\u00e7\u00e3o aumentam, e uma m\u00e1quina pode deteriorar-se de uma para v\u00e1rias barras partidas em poucas semanas.<\/li>\n<li><strong>Condi\u00e7\u00e3o grave:<\/strong> v\u00e1rias barras adjacentes partidas produzem pulsa\u00e7\u00e3o de bin\u00e1rio violenta, vibra\u00e7\u00e3o e ru\u00eddo elevados, e sobreaquecimento do rotor. O desfecho final \u00e9 a falha completa do rotor, com risco real de danos colaterais <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/stator-defects\/\">stator<\/a> provocados pelas correntes de circula\u00e7\u00e3o excessivas.<\/li>\n<\/ul>\n<h2>6. A\u00e7\u00f5es Corretivas e Preven\u00e7\u00e3o<\/h2>\n<p>Ap\u00f3s a confirma\u00e7\u00e3o de um defeito, a resposta consiste em geri-lo de forma deliberada em vez de aguardar a avaria:<\/p>\n<ul>\n<li><strong>Na dete\u00e7\u00e3o:<\/strong> reduzir o intervalo de monitoriza\u00e7\u00e3o (de mensal para semanal), confirmar o diagn\u00f3stico com MCSA, planear a substitui\u00e7\u00e3o do motor ou do rotor, reservar uma pe\u00e7a sobresselente para fun\u00e7\u00f5es cr\u00edticas e investigar a causa da fratura das barras.<\/li>\n<li><strong>Op\u00e7\u00f5es de repara\u00e7\u00e3o:<\/strong> a substitui\u00e7\u00e3o do rotor \u00e9 a solu\u00e7\u00e3o mais fi\u00e1vel para m\u00e1quinas de grande porte; a substitui\u00e7\u00e3o completa do motor \u00e9 frequentemente a op\u00e7\u00e3o mais econ\u00f3mica para as de pequeno porte; oficinas especializadas podem reconstruir rotores de alum\u00ednio; e uma \u00fanica barra partida pode permitir a continua\u00e7\u00e3o limitada da opera\u00e7\u00e3o sob monitoriza\u00e7\u00e3o rigorosa.<\/li>\n<li><strong>Preven\u00e7\u00e3o:<\/strong> minimizar as partidas frequentes recorrendo a arrancadores suaves ou variadores de frequ\u00eancia, eliminar a falta de fase, garantir ventila\u00e7\u00e3o e arrefecimento adequados, especificar motores dimensionados para o ciclo de trabalho real e recorrer \u00e0 dete\u00e7\u00e3o precoce para intervir antes que a falha se propague.<\/li>\n<\/ul>\n<p>Os defeitos nas barras do rotor est\u00e3o entre as falhas de motores mais distintivas do ponto de vista diagn\u00f3stico: as suas caracter\u00edsticas bandas laterais de passagem dos polos tornam-nos detet\u00e1veis de forma fi\u00e1vel tanto por <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/vibration-diagnostics\/\">diagn\u00f3stico de vibra\u00e7\u00e3o<\/a> como por an\u00e1lise de corrente. Detet\u00e1-los precocemente transforma uma potencial falha catastr\u00f3fica do rotor e uma paragem n\u00e3o planeada prolongada numa repara\u00e7\u00e3o planeada e controlada.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/pt\/glossary\/\">\u2190 Voltar ao \u00edndice principal<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Saiba mais sobre defeitos nas barras do rotor em motores de gaiola de esquilo, incluindo barras quebradas e an\u00e9is de extremidade trincados, detect\u00e1veis por meio de bandas laterais de frequ\u00eancia de escorregamento em an\u00e1lises de vibra\u00e7\u00e3o e corrente.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,111],"tags":[],"class_list":["post-215","glossary","type-glossary","status-publish","hentry","category-glossary","category-rotor-balancing"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/pt\/wp-json\/wp\/v2\/glossary\/215","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/pt\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/pt\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":2,"href":"https:\/\/vibromera.eu\/pt\/wp-json\/wp\/v2\/glossary\/215\/revisions"}],"predecessor-version":[{"id":102163,"href":"https:\/\/vibromera.eu\/pt\/wp-json\/wp\/v2\/glossary\/215\/revisions\/102163"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/pt\/wp-json\/wp\/v2\/media?parent=215"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/pt\/wp-json\/wp\/v2\/categories?post=215"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/pt\/wp-json\/wp\/v2\/tags?post=215"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}