{"id":123,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/foundation-stiffness\/"},"modified":"2026-05-23T22:51:22","modified_gmt":"2026-05-23T22:51:22","slug":"foundation-stiffness","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/pt\/glossary\/foundation-stiffness\/","title":{"rendered":"O que \u00e9 rigidez da funda\u00e7\u00e3o? Din\u00e2mica estrutural"},"content":{"rendered":"<h1>Entendendo a Rigidez da Funda\u00e7\u00e3o<\/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\/123?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\/123?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\/123?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\/123?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\/123?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\/123?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\/123?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\/123?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\/123?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\/123?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\/123?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\/123?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\/123?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\/123?add-to-cart=4193\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_4193\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"4193\" data-product_sku=\"BS-1OEM\" aria-label=\"Adiciona ao carrinho: \u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"\u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d foi adicionado ao seu carrinho\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adicionar<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_4193\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/section>\n\t\t\n<p><strong>Compreender a Rigidez da Funda\u00e7\u00e3o<\/strong> \u00e9 a resist\u00eancia de toda a estrutura de suporte de uma m\u00e1quina \u2014 placa de base, argamassa, bloco de bet\u00e3o, pedestais e o solo subjacente \u2014 \u00e0 deforma\u00e7\u00e3o sob as for\u00e7as est\u00e1ticas e din\u00e2micas que uma m\u00e1quina em rota\u00e7\u00e3o exerce sobre ela. \u00c9 quantificada como for\u00e7a por unidade de deflex\u00e3o (N\/mm, N\/m ou lbf\/pol.) e responde a uma pergunta aparentemente simples: at\u00e9 que ponto a funda\u00e7\u00e3o se move quando a m\u00e1quina exerce press\u00e3o sobre ela? Esse \u00fanico n\u00famero repercute em toda a m\u00e1quina, porque a rigidez da funda\u00e7\u00e3o \u00e9 um componente da <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/stiffness\/\">rigidez<\/a> corrente que, juntamente com a rigidez do rotor e do rolamento, determina <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/rotor-dynamics\/\">rotor dynamic<\/a> comportamento. Se n\u00e3o se acertar, uma m\u00e1quina que, de resto, seria excelente pode ficar prejudicada <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/critical-speed\/\">velocidades cr\u00edticas<\/a>, amplified <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/vibration\/\">vibra\u00e7\u00e3o<\/a>, desvio do alinhamento e redu\u00e7\u00e3o da vida \u00fatil.<\/p>\n<h2>1. Defini\u00e7\u00e3o e por que \u00e9 importante<\/h2>\n<p>Uma funda\u00e7\u00e3o raramente \u00e9 a \u00e2ncora r\u00edgida e inamov\u00edvel que se imagina que seja. Ela deforma-se e, quanto mais r\u00edgida for, menos se deforma perante uma determinada for\u00e7a. Como o rotor, os seus rolamentos e a funda\u00e7\u00e3o se comportam como molas ligadas em s\u00e9rie, a funda\u00e7\u00e3o pode tornar-se o elo mais fraco que determina a resposta combinada \u2014 e o resto deste artigo explica exatamente como isso acontece.<\/p>\n<h3>Efeito nas velocidades cr\u00edticas<\/h3>\n<p>A rigidez da funda\u00e7\u00e3o influencia diretamente o sistema <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/natural-frequency\/\">frequ\u00eancias naturais<\/a>:<\/p>\n<ul>\n<li>A rigidez total do sistema resulta da combina\u00e7\u00e3o em s\u00e9rie das rigidezes do rotor, do rolamento e da funda\u00e7\u00e3o, pelo que o elemento menos r\u00edgido \u00e9 o que tem maior influ\u00eancia.<\/li>\n<li>Uma base macia reduz o valor total, o que diminui as velocidades cr\u00edticas.<\/li>\n<li>Isso pode fazer com que a velocidade cr\u00edtica des\u00e7a abaixo da margem de seguran\u00e7a e entre na faixa de funcionamento.<\/li>\n<li>Uma vez que a velocidade cr\u00edtica varia proporcionalmente a \u221a(rigidez total), mesmo uma perda modesta da rigidez da funda\u00e7\u00e3o tem um efeito significativo \u2014 \u00e9 poss\u00edvel quantificar essa varia\u00e7\u00e3o com um <a href=\"https:\/\/vibromera.eu\/pt\/calculators\/rotor-critical-speed\/\">Calculadora de Velocidade Cr\u00edtica do Rotor<\/a>.<\/li>\n<\/ul>\n<h3>Controlo da amplitude da vibra\u00e7\u00e3o<\/h3>\n<ul>\n<li><strong>Em resson\u00e2ncia:<\/strong> Funda\u00e7\u00f5es mais r\u00edgidas geralmente produzem amplitudes de vibra\u00e7\u00e3o de pico menores.<\/li>\n<li><strong>Abaixo da resson\u00e2ncia:<\/strong> uma base muito r\u00edgida pode <em>aumentar<\/em> vibra\u00e7\u00e3o transmitida, uma vez que n\u00e3o proporciona qualquer isolamento.<\/li>\n<li><strong>Design otimizado:<\/strong> A resposta correta consiste em encontrar o equil\u00edbrio entre a rigidez e o isolamento para a gama de frequ\u00eancias espec\u00edfica da m\u00e1quina.<\/li>\n<\/ul>\n<h3>Estabilidade do alinhamento<\/h3>\n<ul>\n<li>Uma base flex\u00edvel permite que o equipamento se desloque sob cargas operacionais.<\/li>\n<li>A dilata\u00e7\u00e3o t\u00e9rmica da m\u00e1quina pode deformar uma funda\u00e7\u00e3o flex\u00edvel.<\/li>\n<li>Precis\u00e3o <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/laser-shaft-alignment\/\">alinhamento de eixos por laser<\/a> \u00e9 dif\u00edcil de manter numa base mole.<\/li>\n<li>A deforma\u00e7\u00e3o da funda\u00e7\u00e3o causada por cargas de processos externos, como as for\u00e7as exercidas pela tubagem, degrada gradualmente o alinhamento \u2014 e um problema oculto <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/soft-foot\/\">pata mole<\/a> podem imitar ou agravar o problema.<\/li>\n<\/ul>\n<h2>2. Componentes que contribuem para a rigidez da funda\u00e7\u00e3o<\/h2>\n<p>A rigidez \u00e9 determinada pelo elo mais fraco de uma cadeia de elementos, cada um com a sua pr\u00f3pria contribui\u00e7\u00e3o:<\/p>\n<h3>Bloco de funda\u00e7\u00e3o de bet\u00e3o<\/h3>\n<ul>\n<li><strong>Rigidez do material:<\/strong> O m\u00f3dulo de elasticidade do bet\u00e3o situa-se aproximadamente entre 25 e 40 GPa.<\/li>\n<li><strong>Geometria:<\/strong> A espessura, a largura e o refor\u00e7o determinam a rigidez global do bloco.<\/li>\n<li><strong>Massa:<\/strong> Um bloco maior costuma proporcionar maior rigidez.<\/li>\n<li><strong>Estado:<\/strong> As fissuras e a deteriora\u00e7\u00e3o reduzem significativamente a rigidez.<\/li>\n<\/ul>\n<h3>Apoio ao solo e ao terreno<\/h3>\n<ul>\n<li>O solo sob o bloco funciona, por si s\u00f3, como um suporte el\u00e1stico.<\/li>\n<li>A rigidez do solo varia enormemente \u2014 desde cerca de 10 N\/mm\u00b3 no caso da argila macia at\u00e9 mais de 1000 N\/mm\u00b3 no caso da rocha.<\/li>\n<li>\u00c9 frequentemente o elo mais fraco de toda a cadeia.<\/li>\n<li>Em solos de fraca qualidade, pode determinar a rigidez total do sistema, independentemente da qualidade do bloco que se encontra acima dele.<\/li>\n<\/ul>\n<h3>Base da m\u00e1quina<\/h3>\n<ul>\n<li>A estrutura de a\u00e7o ou ferro fundido que fixa o equipamento ao bet\u00e3o.<\/li>\n<li>A sua espessura, nervuras e disposi\u00e7\u00e3o determinam a sua contribui\u00e7\u00e3o.<\/li>\n<li>Tem de estar devidamente rejuntado ao bloco para ser v\u00e1lido.<\/li>\n<\/ul>\n<h3>Pedestais e suportes<\/h3>\n<ul>\n<li><a href=\"https:\/\/vibromera.eu\/pt\/glossary\/bearing-pedestal\/\">pedestais de apoio<\/a> fixar os rolamentos \u00e0 placa de base.<\/li>\n<li>As colunas e os suportes transmitem a carga para baixo.<\/li>\n<li>Os pedestais altos ou esguios podem introduzir uma flexibilidade surpreendente \u2014 e excitar <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/structural-resonance\/\">resson\u00e2ncia estrutural<\/a>.<\/li>\n<\/ul>\n<h3>Grout layer<\/h3>\n<ul>\n<li>Preenche o espa\u00e7o entre a placa de base e o bet\u00e3o para transferir a carga.<\/li>\n<li>Uma inje\u00e7\u00e3o de cimento adequada \u00e9 essencial para garantir a rigidez pretendida.<\/li>\n<li>A argamassa deteriorada ou em falta deixa pontos fracos que funcionam como dobradi\u00e7as.<\/li>\n<li>A argamassa \u00e9 normalmente menos r\u00edgida do que o a\u00e7o ou o bet\u00e3o que une.<\/li>\n<\/ul>\n<h2>3. Medi\u00e7\u00e3o e avalia\u00e7\u00e3o<\/h2>\n<h3>Ensaio de rigidez est\u00e1tica<\/h3>\n<ul>\n<li><strong>M\u00e9todo:<\/strong> aplicar uma for\u00e7a conhecida e medir a deforma\u00e7\u00e3o resultante.<\/li>\n<li><strong>C\u00e1lculo:<\/strong> k = F \/ \u03b4 \u2014 for\u00e7a dividida pela deflex\u00e3o.<\/li>\n<li><strong>Typical test:<\/strong> um macaco hidr\u00e1ulico a exercer press\u00e3o sobre a placa de base.<\/li>\n<li><strong>Medi\u00e7\u00e3o:<\/strong> Os medidores de quadrante ou os sensores de deslocamento medem o movimento.<\/li>\n<\/ul>\n<h3>Rigidez din\u00e2mica \u2014 ensaios modais<\/h3>\n<ul>\n<li>A <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/bump-test\/\">teste de impacto<\/a> com um martelo equipado com sensores, a estrutura \u00e9 excitada.<\/li>\n<li>O <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/frequency-response-function\/\">fun\u00e7\u00e3o de resposta em frequ\u00eancia<\/a> \u00e9 calculado a partir da resposta.<\/li>\n<li><a href=\"https:\/\/vibromera.eu\/pt\/glossary\/modal-analysis\/\">An\u00e1lise modal<\/a> determina as frequ\u00eancias naturais, as formas modais e a rigidez efetiva.<\/li>\n<li>O resultado din\u00e2mico reflete melhor o comportamento da funda\u00e7\u00e3o enquanto a m\u00e1quina est\u00e1 em funcionamento.<\/li>\n<\/ul>\n<h3>Avalia\u00e7\u00e3o operacional<\/h3>\n<ul>\n<li>Compare a vibra\u00e7\u00e3o medida no rolamento com a vibra\u00e7\u00e3o na funda\u00e7\u00e3o.<\/li>\n<li>A elevada transmissibilidade \u2014 o facto de a base se deslocar quase tanto quanto o rolamento \u2014 indica um apoio flex\u00edvel em rela\u00e7\u00e3o \u00e0 m\u00e1quina.<\/li>\n<li>Uma baixa transmissibilidade indica uma funda\u00e7\u00e3o r\u00edgida ou um isolamento eficaz.<\/li>\n<li><a href=\"https:\/\/vibromera.eu\/pt\/glossary\/bode-plot\/\">Diagramas de Bode<\/a> desde a partida ou <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/coastdown\/\">desacelera\u00e7\u00e3o<\/a> revelar os modos da base \u00e0 medida que s\u00e3o percorridos.<\/li>\n<\/ul>\n<p>Esta compara\u00e7\u00e3o \u00e9 f\u00e1cil de realizar no terreno com um analisador port\u00e1til de dois canais. Um instrumento como o <a href=\"https:\/\/vibromera.eu\/pt\/produto\/balanset-1\/\">Balanset-1A<\/a> permite medir simultaneamente a vibra\u00e7\u00e3o na tampa do rolamento e na placa de base ou no pedestal, permitindo assim que um engenheiro avalie no local se a estrutura est\u00e1 a mover-se juntamente com a m\u00e1quina \u2014 uma verifica\u00e7\u00e3o r\u00e1pida e pr\u00e1tica para detetar uma funda\u00e7\u00e3o flex\u00edvel ou degradada antes de se avan\u00e7ar com obras estruturais dispendiosas.<\/p>\n<h2>4. Requisitos de conce\u00e7\u00e3o<\/h2>\n<h3>Orienta\u00e7\u00f5es gerais<\/h3>\n<ul>\n<li><strong>Conce\u00e7\u00e3o r\u00edgida (acima da resson\u00e2ncia):<\/strong> A frequ\u00eancia natural da funda\u00e7\u00e3o deve ser superior a duas vezes a velocidade m\u00e1xima da m\u00e1quina.<\/li>\n<li><strong>Design suave (isolado):<\/strong> em alternativa, defina-o para um valor inferior a 0,5 vezes a velocidade m\u00ednima da m\u00e1quina.<\/li>\n<li><strong>Evitar:<\/strong> resson\u00e2ncias fundamentais em qualquer intervalo entre 0,5\u00d7 e 2,0\u00d7 a velocidade de funcionamento.<\/li>\n<li><strong>Alvo:<\/strong> a rigidez da base \u00e9 superior a cerca de 10 vezes a rigidez do rolamento, pelo que a sua influ\u00eancia na din\u00e2mica do rotor \u00e9 reduzida. Pode verificar o modo estrutural em fun\u00e7\u00e3o da velocidade de funcionamento com um <a href=\"https:\/\/vibromera.eu\/pt\/calculators\/foundation-natural-frequency\/\">Calculadora de Frequ\u00eancia Natural da Funda\u00e7\u00e3o<\/a>.<\/li>\n<\/ul>\n<h3>Requisitos espec\u00edficos do equipamento<\/h3>\n<ul>\n<li><strong>Turbinas:<\/strong> funda\u00e7\u00f5es muito r\u00edgidas, com uma massa de bet\u00e3o que, normalmente, \u00e9 3 a 5 vezes superior \u00e0 massa do rotor.<\/li>\n<li><strong>Compressores alternativos:<\/strong> funda\u00e7\u00f5es maci\u00e7as para absorver cargas pulsantes.<\/li>\n<li><strong>M\u00e1quinas de alta velocidade:<\/strong> suficientemente r\u00edgido para manter a separa\u00e7\u00e3o na velocidade cr\u00edtica.<\/li>\n<li><strong>Equipamentos de precis\u00e3o:<\/strong> extremamente r\u00edgido para evitar desvios de alinhamento.<\/li>\n<\/ul>\n<h2>5. Problemas decorrentes de rigidez inadequada<\/h2>\n<h3>Velocidades cr\u00edticas reduzidas<\/h3>\n<ul>\n<li>As velocidades cr\u00edticas entram na faixa de funcionamento.<\/li>\n<li>Aparecem vibra\u00e7\u00f5es intensas a velocidades que deveriam ser seguras.<\/li>\n<li>\u00c9 poss\u00edvel que a m\u00e1quina n\u00e3o consiga atingir a velocidade nominal.<\/li>\n<li>A solu\u00e7\u00e3o consiste no refor\u00e7o das funda\u00e7\u00f5es ou na imposi\u00e7\u00e3o de um limite de velocidade.<\/li>\n<\/ul>\n<h3>Vibra\u00e7\u00e3o excessiva<\/h3>\n<ul>\n<li>O movimento da funda\u00e7\u00e3o aumenta o n\u00edvel geral de vibra\u00e7\u00e3o.<\/li>\n<li>A pr\u00f3pria estrutura pode entrar em resson\u00e2ncia.<\/li>\n<li>A vibra\u00e7\u00e3o \u00e9 transmitida ao equipamento adjacente.<\/li>\n<li>A flex\u00e3o repetida pode causar danos estruturais <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/fatigue\/\">fadiga<\/a> damage.<\/li>\n<\/ul>\n<h3>Instabilidade do alinhamento<\/h3>\n<ul>\n<li>O equipamento desloca-se sobre uma base flex\u00edvel, pelo que o alinhamento, obtido com tanto esfor\u00e7o, se perde.<\/li>\n<li>Os efeitos do crescimento t\u00e9rmico s\u00e3o amplificados.<\/li>\n<li>As varia\u00e7\u00f5es na carga do processo provocam desvios no alinhamento.<\/li>\n<\/ul>\n<h2>6. M\u00e9todos de melhoria<\/h2>\n<h3>Refor\u00e7o de funda\u00e7\u00f5es de bet\u00e3o<\/h3>\n<ul>\n<li><strong>Adicionar massa:<\/strong> aumentar o tamanho ou a espessura da funda\u00e7\u00e3o.<\/li>\n<li><strong>Refor\u00e7ar:<\/strong> adicionar armadura de a\u00e7o ou p\u00f3s-tens\u00e3o.<\/li>\n<li><strong>Repair cracks:<\/strong> A inje\u00e7\u00e3o de ep\u00f3xi ou a repara\u00e7\u00e3o do bet\u00e3o restaura a rigidez perdida.<\/li>\n<li><strong>Estender at\u00e9 ao leito rochoso:<\/strong> as estacas ou os caix\u00f5es atinjam camadas de solo firme.<\/li>\n<\/ul>\n<h3>Refor\u00e7o da placa de base<\/h3>\n<ul>\n<li>Adicione cartelas ou nervuras \u00e0 estrutura.<\/li>\n<li>Aumente a espessura da placa de base.<\/li>\n<li>Melhorar a cobertura e a qualidade da argamassa, eliminando as cavidades.<\/li>\n<li>Acrescentar contraventamento entre os pedestais.<\/li>\n<\/ul>\n<h3>Melhoria do solo<\/h3>\n<ul>\n<li>Estabiliza\u00e7\u00e3o do solo ou inje\u00e7\u00e3o sob press\u00e3o.<\/li>\n<li>Funda\u00e7\u00f5es profundas (estacas) que contornam os solos de fraca qualidade pr\u00f3ximos da superf\u00edcie.<\/li>\n<li>Compacta\u00e7\u00e3o ou densifica\u00e7\u00e3o.<\/li>\n<li>Assessoria geot\u00e9cnica para problemas graves relacionados com o solo.<\/li>\n<\/ul>\n<h3>Adapta\u00e7\u00f5es operacionais<\/h3>\n<ul>\n<li><strong>Modifica\u00e7\u00e3o da velocidade:<\/strong> operar fora das frequ\u00eancias de resson\u00e2ncia da funda\u00e7\u00e3o.<\/li>\n<li><strong>Isolamento de vibra\u00e7\u00f5es:<\/strong> instalar isoladores para desacoplar a m\u00e1quina da funda\u00e7\u00e3o.<\/li>\n<li><strong>Equil\u00edbrio:<\/strong> toler\u00e2ncias de equil\u00edbrio mais rigorosas reduzem a excita\u00e7\u00e3o na fonte \u2014 a solu\u00e7\u00e3o a que muitas equipas de manuten\u00e7\u00e3o recorrem em primeiro lugar.<\/li>\n<li><strong>Amortecimento:<\/strong> aplicar tratamentos de amortecimento \u00e0 estrutura.<\/li>\n<\/ul>\n<p>Vale a pena aprofundar essa abordagem de equil\u00edbrio, porque \u00e9 frequentemente a mais pr\u00e1tica. Excita\u00e7\u00e3o do rotor <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/unbalance\/\">desequil\u00edbrio<\/a> \u00e9 a for\u00e7a din\u00e2mica a que a funda\u00e7\u00e3o tem de reagir; ao reduzir o desequil\u00edbrio, reduz-se a solicita\u00e7\u00e3o exercida sobre a estrutura. No local <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/equilibrio-de-campos\/\">equilibragem no local<\/a> pode, assim, controlar as vibra\u00e7\u00f5es provocadas pelas funda\u00e7\u00f5es sem ter de tocar no bet\u00e3o \u2014 o que, muitas vezes, constitui a solu\u00e7\u00e3o de mitiga\u00e7\u00e3o mais r\u00e1pida e econ\u00f3mica enquanto se planeia uma repara\u00e7\u00e3o estrutural a longo prazo.<\/p>\n<h2>7. Melhores pr\u00e1ticas na conce\u00e7\u00e3o de funda\u00e7\u00f5es<\/h2>\n<h3>Novas instala\u00e7\u00f5es<\/h3>\n<ul>\n<li>Realizar um estudo geot\u00e9cnico das condi\u00e7\u00f5es do solo.<\/li>\n<li>Calcular a massa e a geometria necess\u00e1rias da funda\u00e7\u00e3o.<\/li>\n<li>Incluir uma an\u00e1lise din\u00e2mica das frequ\u00eancias naturais e da resposta ao desequil\u00edbrio.<\/li>\n<li>Projete de forma a garantir uma rigidez e uma massa adequadas em conjunto.<\/li>\n<li>Assegurar o isolamento em rela\u00e7\u00e3o \u00e0s estruturas adjacentes.<\/li>\n<li>Prever medidas para a inje\u00e7\u00e3o de argamassa e o alinhamento.<\/li>\n<\/ul>\n<h3>Avalia\u00e7\u00e3o das funda\u00e7\u00f5es existentes<\/h3>\n<ul>\n<li>Me\u00e7a a vibra\u00e7\u00e3o na funda\u00e7\u00e3o e compare-a com a vibra\u00e7\u00e3o da chumaceira.<\/li>\n<li>Realizar ensaios modais para identificar as frequ\u00eancias naturais da funda\u00e7\u00e3o.<\/li>\n<li>Verifique se existem fissuras, sinais de deteriora\u00e7\u00e3o e assentamento.<\/li>\n<li>Verifique o estado da argamassa por baixo das placas de base.<\/li>\n<li>Compare os valores reais com as especifica\u00e7\u00f5es de projeto originais.<\/li>\n<\/ul>\n<p>A rigidez da funda\u00e7\u00e3o \u00e9 um aspeto f\u00e1cil de ignorar, mas fundamental para o desempenho das m\u00e1quinas rotativas. Uma rigidez adequada mant\u00e9m as velocidades cr\u00edticas bem separadas, mant\u00e9m o alinhamento est\u00e1vel e evita a resson\u00e2ncia; uma rigidez inadequada pode fazer com que equipamento que, de outra forma, estaria em bom estado, funcione de forma irregular e pouco fi\u00e1vel. Considerar a funda\u00e7\u00e3o como uma parte ativa do <a href=\"https:\/\/vibromera.eu\/pt\/glossary\/rotor-bearing-system\/\">sistema rotor-mancal<\/a> \u2014 medido, avaliado e mantido como qualquer outro componente \u2014 \u00e9 o que caracteriza um programa de controlo de vibra\u00e7\u00f5es rigoroso.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/pt\/glossary\/\">\u2190 Voltar ao \u00edndice principal<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Aprenda sobre rigidez da funda\u00e7\u00e3o, a resist\u00eancia das estruturas de suporte da m\u00e1quina \u00e0 deflex\u00e3o, que afeta criticamente as velocidades cr\u00edticas, as amplitudes de vibra\u00e7\u00e3o e a estabilidade do alinhamento.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,110],"tags":[],"class_list":["post-123","glossary","type-glossary","status-publish","hentry","category-glossary","category-vibration-diagnostics"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/pt\/wp-json\/wp\/v2\/glossary\/123","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\/123\/revisions"}],"predecessor-version":[{"id":101383,"href":"https:\/\/vibromera.eu\/pt\/wp-json\/wp\/v2\/glossary\/123\/revisions\/101383"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/pt\/wp-json\/wp\/v2\/media?parent=123"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/pt\/wp-json\/wp\/v2\/categories?post=123"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/pt\/wp-json\/wp\/v2\/tags?post=123"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}