{"id":223,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/rubbing\/"},"modified":"2026-05-23T22:45:47","modified_gmt":"2026-05-23T22:45:47","slug":"rubbing","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/pt-br\/glossary\/rubbing\/","title":{"rendered":"O que \u00e9 Fric\u00e7\u00e3o em M\u00e1quinas Rotativas? Contato por Fric\u00e7\u00e3o"},"content":{"rendered":"<h1>Compreendendo o Atrito por Contato (Rubbing) em M\u00e1quinas Rotativas<\/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-br\/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-br\/product\/balanset-1\/\" title=\"Portable balancer &#038; Vibration analyzer 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 full kit portable balancer and vibration analyzer\" 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-br\/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-br\/product\/balanset-1\/\" title=\"Portable balancer &#038; Vibration analyzer Balanset-1A\">Balanceador port\u00e1til &#038; Analisador de vibra\u00e7\u00e3o Balanset-1A<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&euro;<\/span>1,975.00<\/span> + 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-br\/wp-json\/wp\/v2\/glossary\/223?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 ao carrinho\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar ao carrinho\" 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-br\/wp-json\/wp\/v2\/glossary\/223?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=\"Adicione 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 ao carrinho<\/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-br\/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-br\/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=\"Balanset-1A vibration sensor close-up\" 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-br\/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-br\/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\">&euro;<\/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-br\/wp-json\/wp\/v2\/glossary\/223?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 ao carrinho\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar ao carrinho\" 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-br\/wp-json\/wp\/v2\/glossary\/223?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=\"Adicione 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 ao carrinho<\/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-br\/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-br\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Sensor \u00d3ptico (Tac\u00f4metro a 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 \u00d3ptico (Tac\u00f4metro a 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-br\/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-br\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Sensor \u00d3ptico (Tac\u00f4metro a Laser)\">Sensor \u00d3ptico (Tac\u00f4metro a 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\">&euro;<\/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-br\/wp-json\/wp\/v2\/glossary\/223?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 ao carrinho\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar ao carrinho\" 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-br\/wp-json\/wp\/v2\/glossary\/223?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=\"Adicione 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 ao carrinho<\/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-br\/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-br\/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 rotor balancing kit: carry case, multi-channel signal conditioner, handheld analyzer, magnetic base, vibration sensors, and coiled cables.\" 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-br\/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-br\/product\/balanset-4\/\" title=\"Balanset-4\">Balanset-4<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&euro;<\/span>6,803.00<\/span> + 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-br\/wp-json\/wp\/v2\/glossary\/223?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 ao carrinho\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar ao carrinho\" 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-br\/wp-json\/wp\/v2\/glossary\/223?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=\"Adicione 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 ao carrinho<\/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-br\/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-br\/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=\"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 class=\"category\"><a href=\"https:\/\/vibromera.eu\/pt-br\/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-br\/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\">&euro;<\/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-br\/wp-json\/wp\/v2\/glossary\/223?add-to-cart=1852\" data-quantity=\"1\" data-product_id=\"1852\" data-product_sku=\"MS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Adicionar ao carrinho\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar ao carrinho\" 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-br\/wp-json\/wp\/v2\/glossary\/223?add-to-cart=1852\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1852\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1852\" data-product_sku=\"MS-1\" aria-label=\"Adicione ao carrinho: \u201cMagnetic Stand Insize-60-kgf\u201d\" rel=\"nofollow\" data-success_message=\"\u201cMagnetic Stand Insize-60-kgf\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar ao carrinho<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1852\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt-br\/product\/reflective-tape\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/pt-br\/product\/reflective-tape\/\" title=\"Fita refletiva\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Fita refletiva\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-16x12.webp 16w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-272x182.webp 272w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/pt-br\/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-br\/product\/reflective-tape\/\" title=\"Fita refletiva\">Fita refletiva<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">&euro;<\/span>10.00<\/span> + 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-br\/wp-json\/wp\/v2\/glossary\/223?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 ao carrinho\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar ao carrinho\" 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-br\/wp-json\/wp\/v2\/glossary\/223?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=\"Adicione 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 ao carrinho<\/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-br\/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-br\/product\/dynamic-balancer-balanset-1a\/\" title=\"Balanceador din\u00e2mico \u201cBalanset-1A\u201d OEM\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Balanset-1A kit contents with interface unit, sensors, tachometer and accessories\" 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-br\/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-br\/product\/dynamic-balancer-balanset-1a\/\" title=\"Balanceador din\u00e2mico \u201cBalanset-1A\u201d OEM\">Balanceador din\u00e2mico \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\">&euro;<\/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-br\/wp-json\/wp\/v2\/glossary\/223?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 ao carrinho\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adicionar ao carrinho\" 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-br\/wp-json\/wp\/v2\/glossary\/223?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=\"Adicione 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 ao carrinho<\/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>Atrito por contato (Rubbing)<\/strong> \u00e9 o contato por fric\u00e7\u00e3o e o movimento de deslizamento relativo entre componentes rotativos e estacion\u00e1rios em uma m\u00e1quina. O termo enfatiza o aspecto de fric\u00e7\u00e3o cont\u00ednua do <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/rotor-rub\/\">contato rotor-estator<\/a>, distinguindo-o do contato leve, intermitente ou de impactos \u00fanicos que tamb\u00e9m podem ocorrer. A fric\u00e7\u00e3o gera for\u00e7as de atrito, libera calor significativo atrav\u00e9s do trabalho de fric\u00e7\u00e3o e produz uma assinatura <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/vibration\/\">vibra\u00e7\u00e3o<\/a> dominada por precess\u00e3o reversa, <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/sub-synchronous\/\">subs\u00edncrono<\/a> componentes e efeitos t\u00e9rmicos. \u00c9 um dos defeitos mais perigosos que uma m\u00e1quina rotativa pode desenvolver, pois pode evoluir para uma falha em quest\u00e3o de minutos.<\/p>\n<p>&#8220;Fric\u00e7\u00e3o&#8221; e &#8220;contato do rotor&#8221; s\u00e3o frequentemente usados de forma intercambi\u00e1vel. Na pr\u00e1tica, a fric\u00e7\u00e3o tende a enfatizar o lado do atrito e t\u00e9rmico do contato, enquanto o contato do rotor \u00e9 o termo mais amplo que cobre todas as formas de contato \u2014 de arranh\u00f5es leves a impactos fortes.<\/p>\n<h2>1. A Mec\u00e2nica da Fric\u00e7\u00e3o<\/h2>\n<h3>Modelo de Atrito de Coulomb<\/h3>\n<p>A fric\u00e7\u00e3o obedece aos princ\u00edpios da fric\u00e7\u00e3o seca (Coulomb):<\/p>\n<ul>\n<li><strong>For\u00e7a de atrito:<\/strong> F = \u03bc \u00d7 N, onde \u03bc \u00e9 o coeficiente de atrito e N \u00e9 a for\u00e7a normal que pressiona as superf\u00edcies juntas.<\/li>\n<li><strong>Dire\u00e7\u00e3o:<\/strong> a for\u00e7a de atrito sempre se op\u00f5e ao movimento relativo entre as superf\u00edcies em contato.<\/li>\n<li><strong>Coeficientes t\u00edpicos:<\/strong> a\u00e7o sobre a\u00e7o \u03bc \u2248 0,3\u20130,5; a\u00e7o sobre material de veda\u00e7\u00e3o \u03bc \u2248 0,2\u20130,4.<\/li>\n<li><strong>Gera\u00e7\u00e3o de calor:<\/strong> praticamente todo o trabalho de fric\u00e7\u00e3o \u00e9 convertido em calor no contato.<\/li>\n<\/ul>\n<h3>For\u00e7as Tangenciais e Normais<\/h3>\n<p>Durante o contato, duas componentes de for\u00e7a atuam sobre o rotor:<\/p>\n<ul>\n<li><strong>For\u00e7a normal:<\/strong> empurra radialmente para dentro no rotor no ponto de contato.<\/li>\n<li><strong>For\u00e7a de atrito:<\/strong> age tangencialmente, opondo-se \u00e0 rota\u00e7\u00e3o.<\/li>\n<li><strong>For\u00e7a resultante:<\/strong> a combina\u00e7\u00e3o tende a desacelerar o rotor e desvi\u00e1-lo para tr\u00e1s, contra a dire\u00e7\u00e3o de rota\u00e7\u00e3o.<\/li>\n<li><strong>Aumento do torque:<\/strong> o atrito dissipa pot\u00eancia, aumentando o torque de acionamento que a m\u00e1quina deve fornecer.<\/li>\n<\/ul>\n<h2>2. Padr\u00f5es Caracter\u00edsticos de Vibra\u00e7\u00e3o<\/h2>\n<h3>Precess\u00e3o Retr\u00f3grada (Backward Whirl)<\/h3>\n<p>A caracter\u00edstica mais distintiva da fric\u00e7\u00e3o \u00e9 a precess\u00e3o reversa <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/whirl\/\">precess\u00e3o<\/a>:<\/p>\n<ul>\n<li>A for\u00e7a de atrito cria uma componente tangencial que impulsiona o movimento orbital para tr\u00e1s.<\/li>\n<li>O eixo <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/orbit\/\">\u00f3rbita<\/a> descreve uma trajet\u00f3ria oposta \u00e0 dire\u00e7\u00e3o de rota\u00e7\u00e3o do eixo.<\/li>\n<li>A frequ\u00eancia de precess\u00e3o \u00e9 tipicamente subs\u00edncrona \u2014 menor que 1\u00d7 a velocidade de opera\u00e7\u00e3o.<\/li>\n<li>Frequ\u00eancias comuns aparecem em ordens fracion\u00e1rias: 0,5\u00d7, 0,33\u00d7, 0,25\u00d7.<\/li>\n<li>A forma da \u00f3rbita \u00e9 frequentemente irregular ou visivelmente distorcida.<\/li>\n<\/ul>\n<h3>Caracter\u00edsticas do Espectro<\/h3>\n<ul>\n<li><strong>Picos subs\u00edncronos:<\/strong> m\u00faltiplos picos abaixo de 1\u00d7, frequentemente em harm\u00f4nicos fracion\u00e1rios.<\/li>\n<li><strong>Componente s\u00edncrono:<\/strong> o 1\u00d7 <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/synchronous-vibration\/\">s\u00edncrono<\/a> o pico pode aumentar \u00e0 medida que as for\u00e7as de contato se somam a ele.<\/li>\n<li><strong>Harm\u00f4nicos superiores:<\/strong> 2\u00d7, 3\u00d7, 4\u00d7 <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/harmonics\/\">harm\u00f4nicos<\/a> aparecem devido \u00e0 n\u00e3o linearidade da fric\u00e7\u00e3o intermitente.<\/li>\n<li><strong>Ru\u00eddo de banda larga:<\/strong> o ru\u00eddo de fundo em todo o <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/spectrum\/\">espectro<\/a> aumenta.<\/li>\n<li><strong>Espectro inst\u00e1vel:<\/strong> picos aparecem e desaparecem ou mudam de frequ\u00eancia de uma medi\u00e7\u00e3o para a outra.<\/li>\n<\/ul>\n<h3>Caracter\u00edsticas da Forma de Onda no Tempo<\/h3>\n<ul>\n<li>Eventos impulsivos ou picos cada vez que o contato \u00e9 iniciado, vis\u00edveis no <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/time-waveform\/\">forma de onda no tempo<\/a>.<\/li>\n<li>Corte ou achatamento nos deslocamentos de pico, onde o estator limita fisicamente o movimento.<\/li>\n<li>Uma forma geral irregular e n\u00e3o senoidal.<\/li>\n<li>Padr\u00f5es de batimento produzidos por v\u00e1rias frequ\u00eancias coexistindo.<\/li>\n<\/ul>\n<h2>3. Efeitos T\u00e9rmicos do Contato por Atrito (Rubbing)<\/h2>\n<h3>Gera\u00e7\u00e3o de Calor<\/h3>\n<p>O atrito converte energia mec\u00e2nica diretamente em calor:<\/p>\n<ul>\n<li><strong>Taxa:<\/strong> a pot\u00eancia dissipada \u00e9 igual \u00e0 for\u00e7a de atrito \u00d7 velocidade de deslizamento.<\/li>\n<li><strong>Magnitude:<\/strong> um contato leve pode liberar 10\u2013100 watts; um contato intenso, quilowatts.<\/li>\n<li><strong>Concentra\u00e7\u00e3o:<\/strong> esse calor \u00e9 despejado em uma \u00e1rea de contato muito pequena.<\/li>\n<li><strong>Aumento de temperatura:<\/strong> as temperaturas superficiais locais podem exceder 500 \u00b0C em casos graves.<\/li>\n<\/ul>\n<h3>Desenvolvimento de Empenamento T\u00e9rmico<\/h3>\n<p>O perigo do contato por atrito reside em um ciclo de realimenta\u00e7\u00e3o calor\u2013vibra\u00e7\u00e3o:<\/p>\n<ol>\n<li>O contato inicial deposita calor em um lado do eixo.<\/li>\n<li>O aquecimento assim\u00e9trico curva o eixo em um <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/thermal-bow\/\">empenamento t\u00e9rmico<\/a>.<\/li>\n<li>O empenamento t\u00e9rmico aumenta a deflex\u00e3o do eixo.<\/li>\n<li>Maior deflex\u00e3o provoca um contato por atrito mais severo.<\/li>\n<li>Mais contato por atrito gera ainda mais calor.<\/li>\n<li>Essa realimenta\u00e7\u00e3o positiva pode levar a uma falha r\u00e1pida e descontrolada.<\/li>\n<\/ol>\n<p>Como cada ciclo desse loop aprofunda o pr\u00f3ximo, o contato por atrito \u00e9 considerado uma forma de <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/self-excited-vibration\/\">vibra\u00e7\u00e3o auto-excitada<\/a> e uma rota para uma <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/rotor-instability\/\">instabilidade do rotor<\/a>.<\/p>\n<h3>Efeitos T\u00e9rmicos Secund\u00e1rios<\/h3>\n<ul>\n<li><strong>Aquecimento do rolamento:<\/strong> o calor se conduz ao longo do eixo at\u00e9 os rolamentos.<\/li>\n<li><strong>Degrada\u00e7\u00e3o do \u00f3leo:<\/strong> temperaturas excessivas degradam o lubrificante.<\/li>\n<li><strong>Altera\u00e7\u00f5es no material:<\/strong> transforma\u00e7\u00f5es de fase ou altera\u00e7\u00f5es metal\u00fargicas nas zonas afetadas pelo calor.<\/li>\n<li><strong>Tens\u00e3o t\u00e9rmica:<\/strong> podem iniciar trincas nas regi\u00f5es sob tens\u00e3o t\u00e9rmica.<\/li>\n<\/ul>\n<h2>4. Detec\u00e7\u00e3o de Contato por Atrito em Campo<\/h2>\n<h3>Monitoramento de Vibra\u00e7\u00e3o<\/h3>\n<ul>\n<li><strong>Alarmes subs\u00edncronos:<\/strong> alertam sobre picos em 0,3\u20130,5\u00d7 da velocidade de opera\u00e7\u00e3o.<\/li>\n<li><strong>Monitoramento de \u00f3rbita:<\/strong> a an\u00e1lise automatizada de \u00f3rbita sinaliza o aparecimento de precess\u00e3o reversa (backward whirl).<\/li>\n<li><strong>Mudan\u00e7as espectrais:<\/strong> algoritmos detectam a chegada s\u00fabita de m\u00faltiplos harm\u00f4nicos.<\/li>\n<li><strong>Corte de forma de onda:<\/strong> detec\u00e7\u00e3o da distor\u00e7\u00e3o n\u00e3o senoidal que o contato produz.<\/li>\n<\/ul>\n<p>Reconhecer esses padr\u00f5es \u00e9 exatamente para o que serve um analisador port\u00e1til. Trabalhando nos pr\u00f3prios rolamentos da m\u00e1quina na velocidade de opera\u00e7\u00e3o, um instrumento de dois canais, como o <a href=\"https:\/\/vibromera.eu\/pt-br\/produto\/balanset-1\/\">Balanset-1A<\/a> captura a forma de onda no tempo e a amplitude e fase de 1\u00d7, para que um t\u00e9cnico possa ver o corte impulsivo e a energia de ordem fracion\u00e1ria que marcam um contato, e ent\u00e3o verificar se o desbalanceamento residual ou <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/misalignment\/\">desalinhamento<\/a> \u00e9 o motor subjacente antes de qualquer desmontagem.<\/p>\n<h3>Monitoramento de Temperatura<\/h3>\n<ul>\n<li>Apoio <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/temperature-sensor\/\">sensores de temperatura<\/a> com alarmes de subida r\u00e1pida.<\/li>\n<li>Monitoramento de temperatura por infravermelho das se\u00e7\u00f5es expostas do eixo.<\/li>\n<li>Monitoramento de diferencial de temperatura \u2014 topo versus base de um rolamento.<\/li>\n<li>Alarmes de taxa de varia\u00e7\u00e3o, por exemplo, superiores a 5 \u00b0C por minuto.<\/li>\n<\/ul>\n<h3>Indicadores Adicionais<\/h3>\n<ul>\n<li><strong>Aumento do torque:<\/strong> o consumo de energia aumenta \u00e0 medida que o atrito sobrecarrega o acionamento.<\/li>\n<li><strong>Flutua\u00e7\u00e3o de velocidade:<\/strong> pequenas varia\u00e7\u00f5es de velocidade devido ao torque de atrito vari\u00e1vel.<\/li>\n<li><strong>Emiss\u00e3o ac\u00fastica:<\/strong> som de alta frequ\u00eancia do contato, detect\u00e1vel por <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/acoustic-emission\/\">emiss\u00e3o ac\u00fastica<\/a> sensores.<\/li>\n<li><strong>Inspe\u00e7\u00e3o visual:<\/strong> detritos de desgaste, descolora\u00e7\u00e3o e riscos vis\u00edveis.<\/li>\n<\/ul>\n<h2>5. Resposta a um Contato por Atrito<\/h2>\n<h3>A\u00e7\u00f5es Imediatas<\/h3>\n<ol>\n<li><strong>Reduzir a severidade:<\/strong> diminuir a velocidade ou a carga, se for seguro faz\u00ea-lo.<\/li>\n<li><strong>Monitorar de perto:<\/strong> manter vigil\u00e2ncia cont\u00ednua sobre vibra\u00e7\u00e3o e temperatura.<\/li>\n<li><strong>Preparar-se para a parada:<\/strong> ter um plano de emerg\u00eancia <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/shutdown\/\">parada<\/a> pronto.<\/li>\n<li><strong>Parada de emerg\u00eancia:<\/strong> desligar a m\u00e1quina por prote\u00e7\u00e3o se a vibra\u00e7\u00e3o ou a temperatura estiverem escalando.<\/li>\n<li><strong>Permitir o resfriamento:<\/strong> acionar o girador de manuten\u00e7\u00e3o ou permitir o resfriamento natural antes da inspe\u00e7\u00e3o, para que o empenamento t\u00e9rmico possa se relaxar.<\/li>\n<\/ol>\n<h3>Investiga\u00e7\u00e3o<\/h3>\n<ul>\n<li>Inspecionar em busca de evid\u00eancias f\u00edsicas de contato.<\/li>\n<li>Medir as folgas nos locais suspeitos de atrito.<\/li>\n<li>Verificar empenamento t\u00e9rmico ou permanente <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/shaft-bow\/\">empenamento do eixo<\/a>.<\/li>\n<li>Identificar a causa raiz \u2014 vibra\u00e7\u00e3o excessiva, folga insuficiente, entre outros.<\/li>\n<\/ul>\n<h3>A\u00e7\u00f5es corretivas<\/h3>\n<ul>\n<li><strong>Aumentar as folgas:<\/strong> usinar as \u00e1reas danificadas ou substituir os componentes.<\/li>\n<li><strong>Corrigir a causa raiz:<\/strong> <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/balanceamento\/\">balancear o rotor<\/a>corrigir o alinhamento, resolver o problema do rolamento que permitiu o contato.<\/li>\n<li><strong>Substituir as pe\u00e7as danificadas:<\/strong> veda\u00e7\u00f5es, componentes do rolamento e se\u00e7\u00f5es do eixo, conforme necess\u00e1rio.<\/li>\n<li><strong>Verificar as folgas:<\/strong> confirmar folga adequada em todos os locais antes da reinicializa\u00e7\u00e3o.<\/li>\n<\/ul>\n<p>O atrito \u00e9 uma das falhas relacionadas \u00e0 vibra\u00e7\u00e3o mais graves em m\u00e1quinas rotativas. Sua capacidade de escalar rapidamente por meio de realimenta\u00e7\u00e3o t\u00e9rmica exige reconhecimento imediato, uma resposta r\u00e1pida e disciplinada e uma corre\u00e7\u00e3o completa \u2014 porque a alternativa, em equipamentos cr\u00edticos, \u00e9 uma falha catastr\u00f3fica.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/\">\u2190 Voltar ao \u00cdndice Principal<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Learn about rubbing, the friction phenomenon when rotating parts contact stationary surfaces, creating heat, wear, and characteristic sub-synchronous vibration patterns.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,110],"tags":[],"class_list":["post-223","glossary","type-glossary","status-publish","hentry","category-glossary","category-vibration-diagnostics"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/glossary\/223","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/glossary\/223\/revisions"}],"predecessor-version":[{"id":101360,"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/glossary\/223\/revisions\/101360"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/media?parent=223"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/categories?post=223"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/tags?post=223"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}