{"id":125,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/frame-resonance\/"},"modified":"2026-05-23T22:51:28","modified_gmt":"2026-05-23T22:51:28","slug":"frame-resonance","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/pt-br\/glossary\/frame-resonance\/","title":{"rendered":"O que \u00e9 Resson\u00e2ncia de Estrutura? Vibra\u00e7\u00e3o da Estrutura da M\u00e1quina"},"content":{"rendered":"<h1>Compreendendo a Resson\u00e2ncia da Estrutura<\/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\/125?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\/125?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\/125?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\/125?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\/125?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\/125?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\/125?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\/125?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\/125?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\/125?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\/125?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\/125?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\/125?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\/125?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>A resson\u00e2ncia da estrutura<\/strong> \u00e9 uma forma espec\u00edfica de <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/structural-resonance\/\">resson\u00e2ncia estrutural<\/a> na qual a pr\u00f3pria estrutura, carca\u00e7a, caixa ou inv\u00f3lucro de uma m\u00e1quina vibra em uma de suas <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/natural-frequency\/\">frequ\u00eancias naturais<\/a> em resposta \u00e0 excita\u00e7\u00e3o dos componentes rotativos. Diferentemente da funda\u00e7\u00e3o ou <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/pedestal-looseness\/\">p\u00e9 de mancal<\/a> resson\u00e2ncias, que envolvem a estrutura de suporte abaixo da m\u00e1quina, a resson\u00e2ncia da estrutura reside no pr\u00f3prio corpo da m\u00e1quina \u2014 a estrutura de ferro fundido ou a\u00e7o fabricado que envolve os elementos rotativos. Quando uma frequ\u00eancia de excita\u00e7\u00e3o coincide com uma frequ\u00eancia natural da estrutura, <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/resonance\/\">resson\u00e2ncia<\/a> amplifica o movimento muito al\u00e9m do que a for\u00e7a excitadora sozinha causaria.<\/p>\n<p>A resson\u00e2ncia da estrutura \u00e9 comum em m\u00e1quinas com carca\u00e7as grandes e relativamente leves \u2014 ventiladores, sopradores, bombas e motores. Geralmente se manifesta como ru\u00eddo excessivo, vibra\u00e7\u00e3o vis\u00edvel de tampas ou pain\u00e9is e altas <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/vibration\/\">vibra\u00e7\u00e3o<\/a> leituras na estrutura que est\u00e3o desproporcionalmente altas em rela\u00e7\u00e3o \u00e0 vibra\u00e7\u00e3o real do rotor. Como o sintoma parece alarmante, a resson\u00e2ncia da estrutura \u00e9 um dos problemas mais frequentemente mal diagnosticados em campo: um analista v\u00ea uma leitura enorme e condena um rotor perfeitamente balanceado.<\/p>\n<h2>1. Defini\u00e7\u00e3o: O que \u00e9 Resson\u00e2ncia da Estrutura?<\/h2>\n<p>Toda estrutura possui um conjunto de frequ\u00eancias naturais e formas modais associadas nas quais ela prefere flexionar. A estrutura de uma m\u00e1quina n\u00e3o \u00e9 exce\u00e7\u00e3o. Suas paredes, tampas extremas, p\u00e9s e pain\u00e9is possuem modos de flex\u00e3o e tor\u00e7\u00e3o, e um painel de tampa fino pode ter v\u00e1rios modos pr\u00f3prios dentro da faixa aud\u00edvel. Enquanto essas frequ\u00eancias permanecerem afastadas das frequ\u00eancias de excita\u00e7\u00e3o da m\u00e1quina, a estrutura simplesmente transmite a for\u00e7a silenciosamente. O problema come\u00e7a quando uma frequ\u00eancia operacional coincide com um modo da estrutura e esta come\u00e7a a ressoar.<\/p>\n<p>A marca registrada da resson\u00e2ncia da estrutura \u00e9 a <em>amplifica\u00e7\u00e3o<\/em>: a estrutura se move v\u00e1rias vezes mais do que os rolamentos que a cercam. A energia vem do rotor, mas a resposta pertence \u00e0 estrutura. \u00c9 por isso que as medi\u00e7\u00f5es tomadas na estrutura podem ler de cinco a dez vezes mais altas do que as medi\u00e7\u00f5es na caixa do rolamento, a apenas cent\u00edmetros de dist\u00e2ncia. A propriedade subjacente que define onde esses modos se situam \u00e9 a <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/stiffness\/\">rigidez<\/a> em rela\u00e7\u00e3o \u00e0 massa \u2014 aumente a rigidez da estrutura e as frequ\u00eancias sobem; adicione massa e elas descem.<\/p>\n<h2>2. Situa\u00e7\u00f5es Comuns de Resson\u00e2ncia da Estrutura<\/h2>\n<h3>Estruturas de motores e geradores<\/h3>\n<ul>\n<li><strong>Frequ\u00eancias naturais:<\/strong> geralmente 50\u2013400 Hz, dependendo do tamanho e da constru\u00e7\u00e3o.<\/li>\n<li><strong>Excita\u00e7\u00e3o:<\/strong> 1\u00d7 (<a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/unbalance\/\">desbalanceamento<\/a>), frequ\u00eancia de linha de 2\u00d7 (120 Hz em rede de 60 Hz, 100 Hz em 50 Hz) e for\u00e7as eletromagn\u00e9ticas ligadas \u00e0 <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/electrical-frequency\/\">frequ\u00eancia el\u00e9trica<\/a>.<\/li>\n<li><strong>Sintomas:<\/strong> vibra\u00e7\u00e3o da estrutura muito mais alta do que a vibra\u00e7\u00e3o do rolamento; um zumbido ou ronco aud\u00edvel.<\/li>\n<li><strong>Severidade:<\/strong> a estrutura pode ler 5\u201310\u00d7 mais alto do que os rolamentos.<\/li>\n<\/ul>\n<h3>Carca\u00e7as de ventiladores e sopradores<\/h3>\n<ul>\n<li><strong>Frequ\u00eancias naturais:<\/strong> 20\u2013200 Hz para ventiladores industriais t\u00edpicos.<\/li>\n<li><strong>Excita\u00e7\u00e3o:<\/strong> <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/blade-passing-frequency\/\">frequ\u00eancia de passagem das p\u00e1s<\/a> (n\u00famero de p\u00e1s \u00d7 RPM).<\/li>\n<li><strong>Sintomas:<\/strong> pain\u00e9is da carca\u00e7a vibrando violentamente; ru\u00eddo aerodin\u00e2mico alto.<\/li>\n<li><strong>Caracter\u00edstica:<\/strong> pode aparecer apenas em velocidades ou condi\u00e7\u00f5es de fluxo espec\u00edficas.<\/li>\n<\/ul>\n<h3>Carca\u00e7as de bombas<\/h3>\n<ul>\n<li><strong>Frequ\u00eancias naturais:<\/strong> 30\u2013300 Hz, dependendo do projeto da carca\u00e7a.<\/li>\n<li><strong>Excita\u00e7\u00e3o:<\/strong> <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/vane-passing-frequency\/\">frequ\u00eancia de passagem das p\u00e1s<\/a> e pulsa\u00e7\u00f5es hidr\u00e1ulicas.<\/li>\n<li><strong>Sintomas:<\/strong> vibra\u00e7\u00e3o da carca\u00e7a, ru\u00eddo e risco de trincas por fadiga.<\/li>\n<li><strong>Acoplamento hidr\u00e1ulico:<\/strong> uma carca\u00e7a preenchida com fluido pode acoplar a vibra\u00e7\u00e3o do rotor e da carca\u00e7a, complicando o cen\u00e1rio.<\/li>\n<\/ul>\n<h3>Carca\u00e7as de caixas de engrenagens<\/h3>\n<ul>\n<li>Excitada por <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/gear-mesh-frequency\/\">frequ\u00eancia de engrenamento<\/a>.<\/li>\n<li>As frequ\u00eancias naturais da estrutura frequentemente se sobrep\u00f5em \u00e0 frequ\u00eancia de engrenamento e seus harm\u00f4nicos.<\/li>\n<li>Produz um caracter\u00edstico uivo alto de engrenagem quando em resson\u00e2ncia.<\/li>\n<\/ul>\n<h2>3. Assinatura de Vibra\u00e7\u00e3o e Detec\u00e7\u00e3o<\/h2>\n<h3>Sintomas caracter\u00edsticos<\/h3>\n<ul>\n<li><strong>Dependente da localiza\u00e7\u00e3o:<\/strong> a vibra\u00e7\u00e3o varia drasticamente pela superf\u00edcie da estrutura \u2014 diferen\u00e7as de 10\u00d7 entre pontos s\u00e3o comuns.<\/li>\n<li><strong>Rolamento vs. estrutura:<\/strong> a vibra\u00e7\u00e3o da estrutura excede muito a vibra\u00e7\u00e3o do rolamento (frequentemente 3\u201310\u00d7).<\/li>\n<li><strong>Espec\u00edfico de frequ\u00eancia:<\/strong> o problema aparece apenas na frequ\u00eancia de resson\u00e2ncia; outras frequ\u00eancias parecem normais.<\/li>\n<li><strong>Sens\u00edvel \u00e0 velocidade:<\/strong> grave dentro de uma faixa estreita (\u00b110\u201320% da velocidade de resson\u00e2ncia).<\/li>\n<li><strong>Movimento visual:<\/strong> o movimento da estrutura \u00e9 frequentemente vis\u00edvel a olho nu.<\/li>\n<\/ul>\n<h3>Teste de impacto (bump test)<\/h3>\n<p>O teste definitivo. D\u00ea uma batida na estrutura com um martelo de borracha ou um martelo instrumentado, me\u00e7a a resposta com um <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/accelerometer\/\">aceler\u00f4metro<\/a>, e leia as frequ\u00eancias naturais da estrutura nos picos da resposta em frequ\u00eancia. Comparar esses picos com as frequ\u00eancias de opera\u00e7\u00e3o (1\u00d7, 2\u00d7, passagem de p\u00e1s, etc.) revela imediatamente qualquer coincid\u00eancia perigosa. Veja <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/bump-test\/\">teste de pancada<\/a> e <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/impact-testing\/\">teste de impacto<\/a> pelo procedimento completo.<\/p>\n<h3>Levantamento com aceler\u00f4metro m\u00f3vel<\/h3>\n<p>Com a m\u00e1quina em funcionamento, me\u00e7a a vibra\u00e7\u00e3o em v\u00e1rios pontos da estrutura e construa um mapa de vibra\u00e7\u00e3o das \u00e1reas de alta e baixa intensidade. O padr\u00e3o revela a forma modal \u2014 flex\u00e3o, tor\u00e7\u00e3o ou flexionamento de pain\u00e9is \u2014 e localiza os antin\u00f3s (movimento m\u00e1ximo) e n\u00f3s (movimento m\u00ednimo). Um <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/ods-analysis\/\">an\u00e1lise de forma de deflex\u00e3o operacional (ODS)<\/a> anima esse movimento, e uma an\u00e1lise formal de <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/modal-analysis\/\">an\u00e1lise modal<\/a> extrai os modos subjacentes.<\/p>\n<h3>Medi\u00e7\u00e3o da fun\u00e7\u00e3o de transfer\u00eancia<\/h3>\n<p>Medir o <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/coherence\/\">coer\u00eancia<\/a> entre a vibra\u00e7\u00e3o do rolamento (a entrada) e a vibra\u00e7\u00e3o da estrutura (a sa\u00edda). Alta coer\u00eancia em uma frequ\u00eancia espec\u00edfica confirma que o movimento da estrutura \u00e9 impulsionado por, e ressonante com, a for\u00e7a excitadora do rotor. O <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/transfer-function\/\">fun\u00e7\u00e3o de transfer\u00eancia<\/a> em si quantifica o fator de amplifica\u00e7\u00e3o.<\/p>\n<h2>4. Confirmando a Resson\u00e2ncia em Campo<\/h2>\n<p>Antes de qualquer estrutura ser refor\u00e7ada ou qualquer rotor ser tocado, o diagn\u00f3stico deve ser confirmado \u2014 e isso significa medir o verdadeiro comportamento do rotor separadamente da estrutura. Um analisador port\u00e1til de dois canais, como o <a href=\"https:\/\/vibromera.eu\/pt-br\/produto\/balanset-1\/\">Balanset-1A<\/a> torna isso direto: um analista pode capturar <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/phase\/\">amplitude e fase<\/a> e o espectro completo na caixa do rolamento, em seguida, mover o sensor para o painel suspeito e observar o n\u00edvel subir na frequ\u00eancia ressonante enquanto a fase muda atrav\u00e9s do modo estrutural. Se a vibra\u00e7\u00e3o 1\u00d7 do rotor for modesta no rolamento, mas enorme na estrutura, o veredicto \u00e9 resson\u00e2ncia, n\u00e3o desbalanceamento. O mesmo instrumento permite fazer um balanceamento de teste no rotor para descartar o desbalanceamento e executar uma parada por in\u00e9rcia para que o pico ressonante apare\u00e7a enquanto a velocidade varre a faixa.<\/p>\n<h2>5. Solu\u00e7\u00f5es e Mitiga\u00e7\u00e3o<\/h2>\n<h3>Modifica\u00e7\u00f5es de rigidez<\/h3>\n<ul>\n<li><strong>Adicionar nervuras ou refor\u00e7os estruturais:<\/strong> aumenta a rigidez \u00e0 flex\u00e3o, eleva a frequ\u00eancia natural acima da faixa de excita\u00e7\u00e3o, \u00e9 econ\u00f4mico e pode ser retroajustado em equipamentos existentes.<\/li>\n<li><strong>Aumentar a espessura do material:<\/strong> espessar as paredes ou pain\u00e9is da estrutura aumenta significativamente a rigidez e a frequ\u00eancia, embora possa exigir novos fundidos ou fabrica\u00e7\u00f5es.<\/li>\n<li><strong>V\u00ednculos estruturais e contraventamento:<\/strong> conectar os lados opostos da estrutura impede o flexionamento; o contraventamento cruzado adiciona rigidez torsional e frequentemente pode ser instalado externamente.<\/li>\n<\/ul>\n<h3>Adi\u00e7\u00e3o de massa<\/h3>\n<ul>\n<li><strong>Reduzir a frequ\u00eancia natural:<\/strong> adicionar massa para baixar a frequ\u00eancia abaixo da faixa de excita\u00e7\u00e3o.<\/li>\n<li><strong>Posicionamento estrat\u00e9gico:<\/strong> adicionar massa nos locais dos antin\u00f3s para efeito m\u00e1ximo.<\/li>\n<li><strong>Massa sintonizada:<\/strong> uma massa cuidadosamente calculada desloca um modo espec\u00edfico problem\u00e1tico.<\/li>\n<li><strong>Compromisso:<\/strong> peso extra n\u00e3o \u00e9 desej\u00e1vel em todas as aplica\u00e7\u00f5es.<\/li>\n<\/ul>\n<p>Seja para elevar ou baixar a frequ\u00eancia, um c\u00e1lculo r\u00e1pido mant\u00e9m voc\u00ea fora da pr\u00f3xima faixa de resson\u00e2ncia. Um <a href=\"https:\/\/vibromera.eu\/pt-br\/calculators\/foundation-natural-frequency\/\">calculadora de frequ\u00eancia natural da funda\u00e7\u00e3o<\/a> e um <a href=\"https:\/\/vibromera.eu\/pt-br\/calculators\/damping-ratio-calculator\/\">calculadora de raz\u00e3o de amortecimento<\/a> ajuda a estimar onde uma estrutura modificada se situar\u00e1 antes que qualquer metal seja cortado.<\/p>\n<h3>Tratamentos de amortecimento<\/h3>\n<ul>\n<li><strong>Amortecimento de camada restrita:<\/strong> uma camada viscoel\u00e1stica sandu\u00edche entre chapas met\u00e1licas, aplicada em grandes pain\u00e9is planos e tampas. Reduz o pico de resson\u00e2ncia em 50\u201380% e funciona bem em aproximadamente 20\u2013500 Hz.<\/li>\n<li><strong>Amortecimento de camada livre:<\/strong> material de amortecimento colado diretamente na superf\u00edcie vibrat\u00f3ria \u2014 mais simples que o de camada restrita, mas menos eficaz, \u00fatil onde o acesso \u00e9 limitado.<\/li>\n<\/ul>\n<h3>Altera\u00e7\u00f5es operacionais<\/h3>\n<ul>\n<li><strong>Mudan\u00e7a de velocidade:<\/strong> operar em uma velocidade onde a resson\u00e2ncia n\u00e3o ocorre.<\/li>\n<li><strong>Reduzir a for\u00e7a excitadora:<\/strong> melhorar <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/balanceamento\/\">balanceamento<\/a> e <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/misalignment\/\">alinhamento<\/a> para cortar a amplitude de excita\u00e7\u00e3o que alimenta a resson\u00e2ncia.<\/li>\n<li><strong>Mudan\u00e7as de processo:<\/strong> alterar o fluxo, a press\u00e3o ou a carga para deslocar as frequ\u00eancias de excita\u00e7\u00e3o.<\/li>\n<\/ul>\n<h2>6. Preven\u00e7\u00e3o no Projeto<\/h2>\n<h3>Princ\u00edpios de projeto<\/h3>\n<ul>\n<li><strong>Rigidez adequada:<\/strong> projetar a estrutura para que suas frequ\u00eancias naturais fiquem acima de 2\u00d7 a maior frequ\u00eancia de excita\u00e7\u00e3o.<\/li>\n<li><strong>Distribui\u00e7\u00e3o de massa:<\/strong> evitar massas concentradas que criam modos de baixa frequ\u00eancia.<\/li>\n<li><strong>Nervuras e refor\u00e7os:<\/strong> incorporar recursos de rigidez desde o in\u00edcio.<\/li>\n<li><strong>An\u00e1lise modal:<\/strong> usar EAF durante o projeto para prever e otimizar as frequ\u00eancias naturais.<\/li>\n<\/ul>\n<h3>Verifica\u00e7\u00e3o do projeto<\/h3>\n<ul>\n<li>Testes de prot\u00f3tipo com an\u00e1lise de impacto.<\/li>\n<li>Medi\u00e7\u00e3o da forma de deflex\u00e3o operacional nas primeiras unidades fabricadas.<\/li>\n<li>Revisar o projeto antes da produ\u00e7\u00e3o se resson\u00e2ncias forem encontradas.<\/li>\n<\/ul>\n<h2>7. Exemplo de Caso<\/h2>\n<p><strong>Situa\u00e7\u00e3o:<\/strong> um motor de 75 HP acionando um ventilador centr\u00edfugo, com ru\u00eddo e vibra\u00e7\u00e3o excessivos.<\/p>\n<ul>\n<li><strong>Sintomas:<\/strong> vibra\u00e7\u00e3o da carca\u00e7a do motor de 12 mm\/s; vibra\u00e7\u00e3o do rolamento de apenas 2,5 mm\/s.<\/li>\n<li><strong>Frequ\u00eancia:<\/strong> 120 Hz (2\u00d7 frequ\u00eancia da rede em uma alimenta\u00e7\u00e3o de 60 Hz).<\/li>\n<li><strong>Teste de impacto:<\/strong> revelou uma frequ\u00eancia natural da carca\u00e7a em 118 Hz \u2014 quase exatamente na frequ\u00eancia de excita\u00e7\u00e3o.<\/li>\n<li><strong>Causa raiz:<\/strong> a carca\u00e7a estava em resson\u00e2ncia na frequ\u00eancia de excita\u00e7\u00e3o eletromagn\u00e9tica.<\/li>\n<li><strong>Solu\u00e7\u00e3o:<\/strong> foram adicionadas quatro chapas de refor\u00e7o em \u00e2ngulo, conectando os p\u00e9s do motor aos tambores extremos.<\/li>\n<li><strong>Resultado:<\/strong> a frequ\u00eancia natural da carca\u00e7a mudou para 165 Hz e a vibra\u00e7\u00e3o caiu para 3,2 mm\/s \u2014 confortavelmente de volta \u00e0 faixa aceit\u00e1vel sob <a href=\"https:\/\/vibromera.eu\/pt-br\/glossary\/iso-20816-3\/\">ISO 20816-3<\/a> (o sucessor moderno da ISO 10816-3).<\/li>\n<li><strong>Custo:<\/strong> aproximadamente US$ 200 em materiais, versus cerca de US$ 8.000 para a substitui\u00e7\u00e3o do motor.<\/li>\n<\/ul>\n<p>A resson\u00e2ncia da carca\u00e7a \u00e9 um problema de vibra\u00e7\u00e3o comum, mas frequentemente mal diagnosticado. Reconhecer os sintomas caracter\u00edsticos \u2014 alta vibra\u00e7\u00e3o da carca\u00e7a em rela\u00e7\u00e3o \u00e0 vibra\u00e7\u00e3o do rolamento, nitidamente espec\u00edfica de frequ\u00eancia, fortemente dependente da localiza\u00e7\u00e3o \u2014 e aplicar as t\u00e9cnicas de diagn\u00f3stico corretas (teste de impacto e an\u00e1lise ODS) leva a corre\u00e7\u00f5es direcionadas que podem reduzir drasticamente a vibra\u00e7\u00e3o a um custo muito modesto.<\/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 frame resonance, vibration amplification when machine frames, housings, or casings resonate at operating frequencies, causing excessive noise and structural stress.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,110],"tags":[],"class_list":["post-125","glossary","type-glossary","status-publish","hentry","category-glossary","category-vibration-diagnostics"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/glossary\/125","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\/125\/revisions"}],"predecessor-version":[{"id":101384,"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/glossary\/125\/revisions\/101384"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/media?parent=125"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/categories?post=125"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/pt-br\/wp-json\/wp\/v2\/tags?post=125"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}