{"id":251,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/squeeze-film-damper\/"},"modified":"2026-05-23T23:06:39","modified_gmt":"2026-05-23T23:06:39","slug":"squeeze-film-damper","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/pt\/glossary\/squeeze-film-damper\/","title":{"rendered":"O que \u00e9 um amortecedor de pel\u00edcula fina? Dispositivo de controle de vibra\u00e7\u00e3o"},"content":{"rendered":"<h1>Compreendendo os amortecedores de pel\u00edcula de aperto<\/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\/251?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\/251?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\/251?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\/251?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\/251?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\/251?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\/251?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\/251?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\/251?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\" 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\/251?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=\"Adiciona 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<\/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\/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\/product\/reflective-tape\/\" title=\"Fita refletora\">\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 refletora\" 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\/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\/251?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\/251?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\/251?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\/251?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>A <strong>amortecedor de pel\u00edcula de aperto<\/strong> (SFD) \u00e9 um dispositivo passivo <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/damping\/\">amortecimento<\/a> utilizado em m\u00e1quinas rotativas para dissipar energia vibracional e controlar <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/vibration\/\">vibra\u00e7\u00e3o<\/a> amplitudes \u2014 sobretudo durante a passagem pela <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/critical-speed\/\">velocidades cr\u00edticas<\/a>. Consiste numa pel\u00edcula fina de \u00f3leo retida numa estreita folga anular que envolve o alojamento de um rolamento. Quando o rolamento e o elemento acoplado <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/rotor\/\">rotor<\/a> vibra, o alojamento oscila dentro dessa folga e comprime o filme de \u00f3leo; a resist\u00eancia viscosa \u00e0 compress\u00e3o dissipa energia e amorte o sistema de rotor sem acrescentar rigidez significativa. Os amortecedores de filme comprimido encontram-se em motores de aeronaves, turbinas a g\u00e1s industriais e outras m\u00e1quinas de alta velocidade sempre que \u00e9 necess\u00e1rio amortecimento adicional para controlar resson\u00e2ncias e evitar <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/rotor-instability\/\">instabilidades do rotor<\/a>.<\/p>\n<h2>1. O Princ\u00edpio F\u00edsico de Funcionamento<\/h2>\n<h3>A a\u00e7\u00e3o de compress\u00e3o<\/h3>\n<p>Unlike a <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/journal-bearing\/\">chumaceira de deslizamento<\/a>, cujo filme de \u00f3leo suporta uma carga radial est\u00e1tica, um amortecedor de filme comprimido funciona por compress\u00e3o c\u00edclica de um filme que n\u00e3o suporta carga est\u00e1tica:<\/p>\n<ol>\n<li><strong>Vibra\u00e7\u00e3o do rotor:<\/strong> um rotor com desequil\u00edbrio ou excitado por outra causa aplica for\u00e7as oscilantes ao rolamento.<\/li>\n<li><strong>Movimento da caixa:<\/strong> o alojamento do rolamento descreve uma \u00f3rbita ou oscila radialmente dentro da folga do amortecedor.<\/li>\n<li><strong>Compress\u00e3o do filme de \u00f3leo:<\/strong> quando o alojamento se desloca para dentro, o filme \u00e9 comprimido; quando se desloca para fora, o filme expande-se.<\/li>\n<li><strong>Resist\u00eancia viscosa:<\/strong> o \u00f3leo resiste a ser expulso da folga, gerando uma for\u00e7a de amortecimento proporcional \u00e0 velocidade.<\/li>\n<li><strong>Dissipa\u00e7\u00e3o de energia:<\/strong> a energia vibrat\u00f3ria \u00e9 convertida em calor no \u00f3leo e dissipada pelo caudal de alimenta\u00e7\u00e3o.<\/li>\n<\/ol>\n<p>Uma vez que a for\u00e7a resistente \u00e9 proporcional \u00e0 velocidade e n\u00e3o ao deslocamento, o amortecedor op\u00f5e-se <em>movimento<\/em> sem actuar como uma mola \u2014 a caracter\u00edstica definidora que distingue o amortecimento da rigidez.<\/p>\n<h3>Como difere de um rolamento liso de casquilho<\/h3>\n<ul>\n<li><strong>Rolamento liso de casquilho:<\/strong> suporta cargas est\u00e1ticas e din\u00e2micas atrav\u00e9s da press\u00e3o do filme hidrodin\u00e2mico, contribuindo tanto com rigidez como com amortecimento.<\/li>\n<li><strong>Amortecedor de filme fluido:<\/strong> fornece amortecimento com rigidez m\u00ednima e n\u00e3o suporta carga est\u00e1tica.<\/li>\n<li><strong>Combina\u00e7\u00e3o:<\/strong> um rolamento de elementos rolantes (para suportar a carga) associado a um SFD (para fornecer amortecimento) constitui uma combina\u00e7\u00e3o ideal para muitas concep\u00e7\u00f5es de alta velocidade, uma vez que os rolamentos de elementos rolantes praticamente n\u00e3o fornecem amortecimento por si pr\u00f3prios.<\/li>\n<\/ul>\n<h2>2. Constru\u00e7\u00e3o e Projecto<\/h2>\n<h3>Componentes b\u00e1sicos<\/h3>\n<ul>\n<li><strong>Pista interna (caixa do rolamento):<\/strong> a superf\u00edcie exterior do alojamento do rolamento de elementos rolantes, livre para se deslocar radialmente.<\/li>\n<li><strong>Pista externa (carca\u00e7a do amortecedor):<\/strong> um alojamento fixo com um furo cil\u00edndrico de precis\u00e3o.<\/li>\n<li><strong>Folga anular:<\/strong> a folga radial entre as pistas interior e exterior, tipicamente 0,1\u20130,5 mm.<\/li>\n<li><strong>Oil supply:<\/strong> \u00f3leo pressurizado introduzido no espa\u00e7o de folga.<\/li>\n<li><strong>End seals:<\/strong> O-rings ou veda\u00e7\u00f5es similares que ret\u00eam o \u00f3leo axialmente.<\/li>\n<li><strong>Elementos de centragem:<\/strong> molas ou dispositivos de reten\u00e7\u00e3o que impedem movimentos excessivos e mant\u00eam o veio centrado em repouso.<\/li>\n<\/ul>\n<h3>Par\u00e2metros de concep\u00e7\u00e3o<\/h3>\n<ul>\n<li><strong>Folga radial (c):<\/strong> define o coeficiente de amortecimento \u2014 uma folga menor proporciona um amortecimento muito maior.<\/li>\n<li><strong>Comprimento (L):<\/strong> o comprimento axial do amortecedor \u2014 quanto maior, maior o amortecimento.<\/li>\n<li><strong>Di\u00e2metro (D):<\/strong> um di\u00e2metro maior proporciona maior amortecimento.<\/li>\n<li><strong>Viscosidade do \u00f3leo (\u00b5):<\/strong> uma viscosidade maior proporciona maior amortecimento.<\/li>\n<li><strong>End-seal type:<\/strong> governa a fuga axial de \u00f3leo e, consequentemente, o amortecimento efetivo.<\/li>\n<\/ul>\n<h2>3. O Coeficiente de Amortecimento<\/h2>\n<p>A for\u00e7a de amortecimento produzida por um amortecedor de filme comprimido \u00e9, em primeira aproxima\u00e7\u00e3o:<\/p>\n<blockquote><p>F<sub>amortecimento<\/sub> = C \u00d7 velocidade, onde o coeficiente de amortecimento C \u221d (\u00b5 \u00b7 D \u00b7 L\u00b3) \/ c\u00b3.<\/p><\/blockquote>\n<p>A depend\u00eancia c\u00fabica da folga \u00e9 o facto central: o coeficiente varia com 1\/c\u00b3, pelo que <strong>reduzir a folga a metade multiplica o amortecimento aproximadamente por oito<\/strong>. Essa sensibilidade extrema \u00e9 uma faca de dois gumes \u2014 confere ao projetista uma alavancagem poderosa, mas tamb\u00e9m significa que as toler\u00e2ncias de fabrico, a dilata\u00e7\u00e3o t\u00e9rmica e o desgaste do furo t\u00eam um efeito desproporcionado no desempenho real. A escolha da espessura \u00f3tima do filme \u00e9, portanto, a decis\u00e3o central de projeto, e \u00e9 tomada em conjunto com a <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/mode-shape\/\">formas modais<\/a>.<\/p>\n<h3>Molas de centragem<\/h3>\n<ul>\n<li><strong>Prop\u00f3sito:<\/strong> para impedir que o amortecedor &#8220;toque no fundo&#8221; em contacto metal-a-metal quando o movimento \u00e9 elevado.<\/li>\n<li><strong>Selec\u00e7\u00e3o da rigidez:<\/strong> suficientemente suave para permitir que o amortecedor se mova e cumpra a sua fun\u00e7\u00e3o, mas suficientemente r\u00edgida para manter o veio centrado sob a gravidade e cargas laterais est\u00e1ticas.<\/li>\n<li><strong>Common types:<\/strong> a mola em gaiola de esquilo (um anel de elementos de viga circunferenciais), molas helicoidais e elementos elastom\u00e9ricos.<\/li>\n<\/ul>\n<h3>Alimenta\u00e7\u00e3o e drenagem de \u00f3leo<\/h3>\n<ul>\n<li>Uma alimenta\u00e7\u00e3o pressurizada, tipicamente 1\u20135 bar, para manter a folga preenchida.<\/li>\n<li>Caudal adequado para dissipar o calor gerado pelo filme.<\/li>\n<li>Drenagem adequada para evitar inunda\u00e7\u00e3o de \u00f3leo e sobrepressuriza\u00e7\u00e3o.<\/li>\n<li>Ventila\u00e7\u00e3o de ar para evitar <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/cavitation\/\">cavita\u00e7\u00e3o<\/a> no interior da pel\u00edcula.<\/li>\n<\/ul>\n<h2>4. Vantagens dos Amortecedores de Filme Fluido<\/h2>\n<ul>\n<li><strong>Adiciona amortecimento sem rigidez:<\/strong> aumenta a dissipa\u00e7\u00e3o de energia sem deslocar significativamente as velocidades cr\u00edticas do rotor.<\/li>\n<li><strong>Reduz a vibra\u00e7\u00e3o na velocidade cr\u00edtica:<\/strong> holds <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/resonance\/\">resson\u00e2ncia<\/a> as amplitudes para n\u00edveis seguros.<\/li>\n<li><strong>Previne instabilidades:<\/strong> helps suppress <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/oil-whirl\/\">redemoinho de \u00f3leo<\/a>, <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/shaft-whip\/\">chicoteamento do eixo<\/a> e outras vibra\u00e7\u00f5es autoexcitadas.<\/li>\n<li><strong>Isola a for\u00e7a transmitida:<\/strong> reduz a vibra\u00e7\u00e3o transmitida \u00e0 funda\u00e7\u00e3o e \u00e0 estrutura envolvente.<\/li>\n<li><strong>Absorve transientes:<\/strong> controla a vibra\u00e7\u00e3o durante o arranque, paragem e varia\u00e7\u00f5es de carga.<\/li>\n<li><strong>Capacidade de instala\u00e7\u00e3o em equipamentos existentes:<\/strong> Pode ser adicionado a m\u00e1quinas existentes sem grandes altera\u00e7\u00f5es de projeto.<\/li>\n<li><strong>Opera\u00e7\u00e3o passiva:<\/strong> n\u00e3o necessita de sistema de controlo nem de alimenta\u00e7\u00e3o externa \u2014 apenas de um circuito de \u00f3leo.<\/li>\n<\/ul>\n<h2>5. Aplica\u00e7\u00f5es<\/h2>\n<h3>Turbinas a g\u00e1s para aeronaves<\/h3>\n<ul>\n<li>Praticamente universal nos motores aeron\u00e1uticos modernos.<\/li>\n<li>Essencial para controlar a vibra\u00e7\u00e3o durante a passagem pelas velocidades cr\u00edticas na acelera\u00e7\u00e3o.<\/li>\n<li>Tornam os rolamentos de elementos rolantes vi\u00e1veis em aplica\u00e7\u00f5es de muito alta velocidade.<\/li>\n<li>Design compacto e leve &mdash; uma vantagem decisiva na aeroespacial.<\/li>\n<\/ul>\n<h3>turbinas a g\u00e1s industriais<\/h3>\n<ul>\n<li>Utilizado em conjunto com rolamentos de elementos rolantes ou de patins basculantes.<\/li>\n<li>Controlar a vibra\u00e7\u00e3o durante arranques e paragens frequentes.<\/li>\n<li>Reduzir a vibra\u00e7\u00e3o transmitida para a estrutura de suporte.<\/li>\n<\/ul>\n<h3>Compressores de alta velocidade<\/h3>\n<ul>\n<li>Acrescentar amortecimento para al\u00e9m do que os rolamentos por si s\u00f3 proporcionam.<\/li>\n<li>Prevenir instabilidades em condi\u00e7\u00f5es de carga reduzida.<\/li>\n<li>Alargar o intervalo de funcionamento utiliz\u00e1vel.<\/li>\n<\/ul>\n<h3>Aplica\u00e7\u00f5es de retrofit<\/h3>\n<ul>\n<li>Instalados em m\u00e1quinas existentes com vibra\u00e7\u00e3o excessiva nas velocidades cr\u00edticas.<\/li>\n<li>Um rem\u00e9dio quando o balanceamento e o alinhamento por si s\u00f3s n\u00e3o conseguem reduzir suficientemente a vibra\u00e7\u00e3o.<\/li>\n<li>Uma alternativa \u00e0 reconfigura\u00e7\u00e3o dispendiosa do rotor ou dos rolamentos.<\/li>\n<\/ul>\n<h2>6. Desafios e limita\u00e7\u00f5es<\/h2>\n<h3>Desafios de projeto<\/h3>\n<ul>\n<li><strong>Cavita\u00e7\u00e3o:<\/strong> o filme pode cavitar &mdash; formar bolhas de vapor &mdash; o que reduz o amortecimento efetivo.<\/li>\n<li><strong>Air ingestion:<\/strong> o ar aprisionado amolece o filme e reduz o amortecimento.<\/li>\n<li><strong>Depend\u00eancia da frequ\u00eancia:<\/strong> a efic\u00e1cia da amortecimento varia com a frequ\u00eancia de vibra\u00e7\u00e3o.<\/li>\n<li><strong>Comportamento n\u00e3o linear:<\/strong> o desempenho muda com a amplitude, e as \u00f3rbitas de grande amplitude que se aproximam do limite de folga comportam-se de forma muito n\u00e3o linear.<\/li>\n<\/ul>\n<h3>Desafios operacionais<\/h3>\n<ul>\n<li><strong>Sensibilidade \u00e0 temperatura:<\/strong> a viscosidade do \u00f3leo diminui com o aumento da temperatura, reduzindo diretamente o amortecimento.<\/li>\n<li><strong>Limpeza:<\/strong> a contamina\u00e7\u00e3o pode bloquear a alimenta\u00e7\u00e3o ou danificar as superf\u00edcies de precis\u00e3o.<\/li>\n<li><strong>Depend\u00eancia do fornecimento de \u00f3leo:<\/strong> a perda de press\u00e3o de \u00f3leo elimina completamente o amortecimento.<\/li>\n<li><strong>Seal wear:<\/strong> as veda\u00e7\u00f5es terminais degradam-se com o tempo, reduzindo progressivamente a efic\u00e1cia.<\/li>\n<\/ul>\n<h3>Requisitos de manuten\u00e7\u00e3o<\/h3>\n<ul>\n<li>Monitorize a press\u00e3o e a temperatura de alimenta\u00e7\u00e3o do \u00f3leo.<\/li>\n<li>Inspecionar as veda\u00e7\u00f5es terminais periodicamente.<\/li>\n<li>Verificar as folgas durante as revis\u00f5es gerais.<\/li>\n<li>Verifique o estado das molas de centragem.<\/li>\n<li>Limpe os canais de \u00f3leo e os filtros.<\/li>\n<\/ul>\n<h2>7. Projetos Avan\u00e7ados<\/h2>\n<h3>Amortecedores de anel de pist\u00e3o<\/h3>\n<ul>\n<li>Utilize an\u00e9is de segmento em substitui\u00e7\u00e3o de vedantes de O-ring.<\/li>\n<li>Permita uma fuga controlada de \u00f3leo para uma melhor distribui\u00e7\u00e3o de press\u00e3o.<\/li>\n<li>Reduza a tend\u00eancia para cavita\u00e7\u00e3o.<\/li>\n<\/ul>\n<h3>Amortecedores de extremidade aberta<\/h3>\n<ul>\n<li>Sem vedantes terminais \u2014 o \u00f3leo circula livremente na dire\u00e7\u00e3o axial.<\/li>\n<li>Um design mais simples, sem problemas de desgaste de vedantes.<\/li>\n<li>Requerem caudais de \u00f3leo mais elevados.<\/li>\n<li>Proporcionam um amortecimento mais consistente e previs\u00edvel.<\/li>\n<\/ul>\n<h3>Amortecedores integrais<\/h3>\n<ul>\n<li>O filme de amortecimento forma-se diretamente entre o exterior do rolamento e a sua caixa.<\/li>\n<li>N\u00e3o \u00e9 necess\u00e1rio nenhum componente amortecedor separado.<\/li>\n<li>Compacto, mas com capacidade de amortecimento limitada.<\/li>\n<\/ul>\n<h2>8. Efic\u00e1cia e Desempenho<\/h2>\n<h3>Redu\u00e7\u00e3o de vibra\u00e7\u00e3o<\/h3>\n<ul>\n<li>Pode reduzir a vibra\u00e7\u00e3o na velocidade cr\u00edtica em 50\u201380%.<\/li>\n<li>Particularmente eficaz no controlo de resson\u00e2ncias.<\/li>\n<li>Alarga o pico de velocidade cr\u00edtica, tornando-o menos pronunciado.<\/li>\n<li>Permite uma passagem mais segura e suave pelas velocidades cr\u00edticas \u2014 vis\u00edvel como um pico mais suavizado num <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/bode-plot\/\">Diagrama de Bode<\/a> during run-up.<\/li>\n<\/ul>\n<h3>Melhoria da estabilidade<\/h3>\n<ul>\n<li>Aumenta a velocidade de in\u00edcio (limiar) para <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/rotor-instability\/\">instabilidades<\/a>.<\/li>\n<li>Pode prevenir <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/oil-whirl\/\">redemoinho de \u00f3leo<\/a> quando combinado com rolamentos de elementos rolantes.<\/li>\n<li>Acrescenta amortecimento positivo que contraria as for\u00e7as desestabilizadoras de acoplamento cruzado.<\/li>\n<\/ul>\n<h2>9. Conce\u00e7\u00e3o, An\u00e1lise e Verifica\u00e7\u00e3o em Campo<\/h2>\n<p>Projetar corretamente um amortecedor de filme de aperto exige um estudo integrado de todo o <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/rotor-bearing-system\/\">sistema rotor-mancal<\/a>:<\/p>\n<ul>\n<li><strong>An\u00e1lise rotor-din\u00e2mica:<\/strong> modelando o rotor, os rolamentos e o amortecedor em conjunto para prever a resposta e a estabilidade.<\/li>\n<li><strong>An\u00e1lise de filme fluido:<\/strong> solu\u00e7\u00f5es da equa\u00e7\u00e3o de Reynolds para a distribui\u00e7\u00e3o de press\u00e3o no filme.<\/li>\n<li><strong>An\u00e1lise n\u00e3o linear:<\/strong> considerando a cavita\u00e7\u00e3o e o comportamento dependente da amplitude.<\/li>\n<li><strong>An\u00e1lise t\u00e9rmica:<\/strong> aumento de temperatura do \u00f3leo e dissipa\u00e7\u00e3o de calor.<\/li>\n<li><strong>Software especializado:<\/strong> pacotes de rodin\u00e2mica como DyRoBeS e XLTRC incluem modelos de SFD.<\/li>\n<\/ul>\n<p>Por melhor que seja o projeto, a sua fun\u00e7\u00e3o real \u00e9 manter a vibra\u00e7\u00e3o medida dentro de limites aceit\u00e1veis, e isso \u00e9 confirmado na m\u00e1quina em funcionamento e n\u00e3o no papel. Um analisador port\u00e1til de dois canais como o <a href=\"https:\/\/vibromera.eu\/pt\/produto\/balanset-1\/\">Balanset-1A<\/a> \u00e9 a ferramenta pr\u00e1tica para essa verifica\u00e7\u00e3o: com <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/accelerometer\/\">aceler\u00f3metros<\/a> nas caixas dos rolamentos, captura a amplitude e <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/phase\/\">fase<\/a> through a <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/coastdown\/\">arranque ou desacelera\u00e7\u00e3o<\/a>, permitindo ao engenheiro observar a largura e a profundidade do pico de velocidade cr\u00edtica amortecida e confirmar que o rotor atravessa a resson\u00e2ncia em seguran\u00e7a. Se o desequil\u00edbrio residual <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/unbalance\/\">desequil\u00edbrio<\/a> estiver a alimentar a resson\u00e2ncia, o mesmo instrumento pode <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/equilibrio-de-campos\/\">equilibragem no local<\/a> o rotor \u2014 porque mesmo o melhor amortecedor funciona melhor quando a excita\u00e7\u00e3o que tem de absorver \u00e9 minimizada primeiro.<\/p>\n<h2>10. Quando Utilizar \u2014 e Quando N\u00e3o Utilizar<\/h2>\n<h3>Aplica\u00e7\u00f5es recomendadas<\/h3>\n<ul>\n<li><strong>M\u00e1quinas de alta velocidade:<\/strong> funcionamento pr\u00f3ximo ou acima das velocidades cr\u00edticas.<\/li>\n<li><strong>Sistemas de rolamentos de elementos rolantes:<\/strong> onde os pr\u00f3prios rolamentos proporcionam pouco amortecimento.<\/li>\n<li><strong>Rotores flex\u00edveis:<\/strong> em funcionamento acima da primeira velocidade cr\u00edtica.<\/li>\n<li><strong>Problemas de estabilidade:<\/strong> onde as instabilidades do rotor constituem um risco real.<\/li>\n<li><strong>Controlo transit\u00f3rio:<\/strong> reduzindo a vibra\u00e7\u00e3o durante o arranque e a paragem.<\/li>\n<\/ul>\n<h3>N\u00e3o recomendado quando<\/h3>\n<ul>\n<li>O funcionamento \u00e9 a baixa velocidade e o amortecimento n\u00e3o \u00e9 cr\u00edtico.<\/li>\n<li>As restri\u00e7\u00f5es de espa\u00e7o impedem a instala\u00e7\u00e3o.<\/li>\n<li>N\u00e3o est\u00e1 dispon\u00edvel um sistema de abastecimento de \u00f3leo fi\u00e1vel.<\/li>\n<li>Os recursos de manuten\u00e7\u00e3o s\u00e3o limitados \u2014 os amortecedores acrescentam um sistema de \u00f3leo a manter.<\/li>\n<li>Medidas mais simples, como a <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/equilibrio-2\/\">equilibragem<\/a> ou <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/misalignment\/\">alinhamento<\/a>, j\u00e1 cumprem essa fun\u00e7\u00e3o.<\/li>\n<\/ul>\n<p>O amortecedor de pel\u00edcula de aperto \u00e9 uma solu\u00e7\u00e3o elegante para o controlo de vibra\u00e7\u00f5es em m\u00e1quinas rotativas de alta velocidade. Ao proporcionar um amortecimento substancial com quase nenhuma rigidez adicional, permite o funcionamento seguro atrav\u00e9s de velocidades cr\u00edticas, suprime instabilidades destrutivas e alarga o envelope de opera\u00e7\u00e3o \u2014 tudo num conjunto compacto e passivo que n\u00e3o exige mais do que um fornecimento limpo e cont\u00ednuo de \u00f3leo.<\/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 amortecedores de pel\u00edcula de \u00f3leo, dispositivos passivos que utilizam pel\u00edculas de \u00f3leo para proporcionar amortecimento em m\u00e1quinas rotativas, controlando a vibra\u00e7\u00e3o em velocidades cr\u00edticas e prevenindo instabilidades do rotor.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,110],"tags":[],"class_list":["post-251","glossary","type-glossary","status-publish","hentry","category-glossary","category-vibration-diagnostics"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/pt\/wp-json\/wp\/v2\/glossary\/251","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":1,"href":"https:\/\/vibromera.eu\/pt\/wp-json\/wp\/v2\/glossary\/251\/revisions"}],"predecessor-version":[{"id":101461,"href":"https:\/\/vibromera.eu\/pt\/wp-json\/wp\/v2\/glossary\/251\/revisions\/101461"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/pt\/wp-json\/wp\/v2\/media?parent=251"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/pt\/wp-json\/wp\/v2\/categories?post=251"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/pt\/wp-json\/wp\/v2\/tags?post=251"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}