{"id":125,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/frame-resonance\/"},"modified":"2026-05-23T22:51:28","modified_gmt":"2026-05-23T22:51:28","slug":"frame-resonance","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/vi\/glossary\/frame-resonance\/","title":{"rendered":"C\u1ed9ng h\u01b0\u1edfng khung l\u00e0 g\u00ec? Rung \u0111\u1ed9ng c\u1ea5u tr\u00fac m\u00e1y"},"content":{"rendered":"<h1>Hi\u1ec3u v\u1ec1 c\u1ed9ng h\u01b0\u1edfng khung<\/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\/vi\/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\/vi\/product\/balanset-1\/\" title=\"M\u00e1y c\u00e2n b\u1eb1ng di \u0111\u1ed9ng &amp; M\u00e1y ph\u00e2n t\u00edch rung \u0111\u1ed9ng 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=\"B\u1ed9 \u0111\u1ea7y \u0111\u1ee7 m\u00e1y c\u00e2n b\u1eb1ng v\u00e0 ph\u00e2n t\u00edch rung \u0111\u1ed9ng c\u1ea7m tay Balanset-1A\" 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\/vi\/product-category\/devices\/\" rel=\"tag\">Thi\u1ebft b\u1ecb<\/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\/vi\/product\/balanset-1\/\" title=\"M\u00e1y c\u00e2n b\u1eb1ng di \u0111\u1ed9ng &amp; M\u00e1y ph\u00e2n t\u00edch rung \u0111\u1ed9ng Balanset-1A\">M\u00e1y c\u00e2n b\u1eb1ng di \u0111\u1ed9ng &amp; M\u00e1y ph\u00e2n t\u00edch rung \u0111\u1ed9ng 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> + Thu\u1ebf GTGT (n\u1ebfu c\u00f3)<\/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=\"\/vi\/wp-json\/wp\/v2\/glossary\/125?add-to-cart=986\" data-quantity=\"1\" data-product_id=\"986\" data-product_sku=\"BS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng\" 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=\"\/vi\/wp-json\/wp\/v2\/glossary\/125?add-to-cart=986\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_986\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"986\" data-product_sku=\"BS-1\" aria-label=\"Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng: \u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d \u0111\u00e3 \u0111\u01b0\u1ee3c th\u00eam v\u00e0o gi\u1ecf h\u00e0ng c\u1ee7a b\u1ea1n\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng<\/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\/vi\/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\/vi\/product\/vibration-sensor\/\" title=\"C\u1ea3m bi\u1ebfn rung\">\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=\"C\u1eadn c\u1ea3nh c\u1ea3m bi\u1ebfn rung 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\/vi\/product-category\/parts\/\" rel=\"tag\">Ph\u1ee5 t\u00f9ng<\/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\/vi\/product\/vibration-sensor\/\" title=\"C\u1ea3m bi\u1ebfn rung\">C\u1ea3m bi\u1ebfn rung<\/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> + Thu\u1ebf GTGT (n\u1ebfu c\u00f3)<\/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=\"\/vi\/wp-json\/wp\/v2\/glossary\/125?add-to-cart=1820\" data-quantity=\"1\" data-product_id=\"1820\" data-product_sku=\"VS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng\" 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=\"\/vi\/wp-json\/wp\/v2\/glossary\/125?add-to-cart=1820\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1820\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1820\" data-product_sku=\"VS-1\" aria-label=\"Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng: \u201cVibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u201cVibration sensor\u201d \u0111\u00e3 \u0111\u01b0\u1ee3c th\u00eam v\u00e0o gi\u1ecf h\u00e0ng c\u1ee7a b\u1ea1n\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng<\/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\/vi\/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\/vi\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"C\u1ea3m bi\u1ebfn quang h\u1ecdc (M\u00e1y \u0111o t\u1ed1c \u0111\u1ed9 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=\"C\u1ea3m bi\u1ebfn quang h\u1ecdc (M\u00e1y \u0111o t\u1ed1c \u0111\u1ed9 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\/vi\/product-category\/parts\/\" rel=\"tag\">Ph\u1ee5 t\u00f9ng<\/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\/vi\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"C\u1ea3m bi\u1ebfn quang h\u1ecdc (M\u00e1y \u0111o t\u1ed1c \u0111\u1ed9 laser)\">C\u1ea3m bi\u1ebfn quang h\u1ecdc (M\u00e1y \u0111o t\u1ed1c \u0111\u1ed9 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> + Thu\u1ebf GTGT (n\u1ebfu c\u00f3)<\/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=\"\/vi\/wp-json\/wp\/v2\/glossary\/125?add-to-cart=1832\" data-quantity=\"1\" data-product_id=\"1832\" data-product_sku=\"Tach-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng\" 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=\"\/vi\/wp-json\/wp\/v2\/glossary\/125?add-to-cart=1832\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1832\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1832\" data-product_sku=\"Tach-1\" aria-label=\"Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng: \u201cOptical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u201cOptical Sensor (Laser Tachometer)\u201d \u0111\u00e3 \u0111\u01b0\u1ee3c th\u00eam v\u00e0o gi\u1ecf h\u00e0ng c\u1ee7a b\u1ea1n\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng<\/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\/vi\/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\/vi\/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=\"B\u1ed9 d\u1ee5ng c\u1ee5 c\u00e2n b\u1eb1ng r\u00f4to Vibromera: h\u1ed9p \u0111\u1ef1ng, b\u1ed9 \u0111i\u1ec1u ch\u1ec9nh t\u00edn hi\u1ec7u \u0111a k\u00eanh, m\u00e1y ph\u00e2n t\u00edch c\u1ea7m tay, \u0111\u1ebf t\u1eeb, c\u1ea3m bi\u1ebfn rung v\u00e0 d\u00e2y c\u00e1p xo\u1eafn.\" 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\/vi\/product-category\/devices\/\" rel=\"tag\">Thi\u1ebft b\u1ecb<\/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\/vi\/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> + Thu\u1ebf GTGT (n\u1ebfu c\u00f3)<\/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=\"\/vi\/wp-json\/wp\/v2\/glossary\/125?add-to-cart=1833\" data-quantity=\"1\" data-product_id=\"1833\" data-product_sku=\"BS-4\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng\" 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=\"\/vi\/wp-json\/wp\/v2\/glossary\/125?add-to-cart=1833\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1833\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1833\" data-product_sku=\"BS-4\" aria-label=\"Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng: \u201cBalanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u201cBalanset-4\u201d \u0111\u00e3 \u0111\u01b0\u1ee3c th\u00eam v\u00e0o gi\u1ecf h\u00e0ng c\u1ee7a b\u1ea1n\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng<\/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\/vi\/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\/vi\/product\/magnet-stand\/\" title=\"\u0110\u1ebf t\u1eeb 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=\"\u0110\u1ebf nam ch\u00e2m.\" 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\/vi\/product-category\/parts\/\" rel=\"tag\">Ph\u1ee5 t\u00f9ng<\/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\/vi\/product\/magnet-stand\/\" title=\"\u0110\u1ebf t\u1eeb Insize-60-kgf\">\u0110\u1ebf t\u1eeb 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> + Thu\u1ebf GTGT (n\u1ebfu c\u00f3)<\/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=\"\/vi\/wp-json\/wp\/v2\/glossary\/125?add-to-cart=1852\" data-quantity=\"1\" data-product_id=\"1852\" data-product_sku=\"MS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng\" 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=\"\/vi\/wp-json\/wp\/v2\/glossary\/125?add-to-cart=1852\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1852\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1852\" data-product_sku=\"MS-1\" aria-label=\"Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng: \u201cMagnetic Stand Insize-60-kgf\u201d\" rel=\"nofollow\" data-success_message=\"\u201cMagnetic Stand Insize-60-kgf\u201d \u0111\u00e3 \u0111\u01b0\u1ee3c th\u00eam v\u00e0o gi\u1ecf h\u00e0ng c\u1ee7a b\u1ea1n\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng<\/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\/vi\/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\/vi\/product\/reflective-tape\/\" title=\"B\u0103ng ph\u1ea3n quang\">\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=\"B\u0103ng ph\u1ea3n quang\" 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\/vi\/product-category\/parts\/\" rel=\"tag\">Ph\u1ee5 t\u00f9ng<\/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\/vi\/product\/reflective-tape\/\" title=\"B\u0103ng ph\u1ea3n quang\">B\u0103ng ph\u1ea3n quang<\/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> + Thu\u1ebf GTGT (n\u1ebfu c\u00f3)<\/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=\"\/vi\/wp-json\/wp\/v2\/glossary\/125?add-to-cart=2329\" data-quantity=\"1\" data-product_id=\"2329\" data-product_sku=\"rt-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng\" 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=\"\/vi\/wp-json\/wp\/v2\/glossary\/125?add-to-cart=2329\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_2329\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"2329\" data-product_sku=\"rt-1\" aria-label=\"Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng: \u201cReflective tape\u201d\" rel=\"nofollow\" data-success_message=\"\u201cReflective tape\u201d \u0111\u00e3 \u0111\u01b0\u1ee3c th\u00eam v\u00e0o gi\u1ecf h\u00e0ng c\u1ee7a b\u1ea1n\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng<\/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\/vi\/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\/vi\/product\/dynamic-balancer-balanset-1a\/\" title=\"M\u00e1y c\u00e2n b\u1eb1ng \u0111\u1ed9ng \u201cBalanset-1A\u201d OEM\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"N\u1ed9i dung b\u1ed9 s\u1ea3n ph\u1ea9m Balanset-1A bao g\u1ed3m thi\u1ebft b\u1ecb giao di\u1ec7n, c\u1ea3m bi\u1ebfn, m\u00e1y \u0111o t\u1ed1c \u0111\u1ed9 v\u00e0 c\u00e1c ph\u1ee5 ki\u1ec7n\" 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\/vi\/product-category\/devices\/\" rel=\"tag\">Thi\u1ebft b\u1ecb<\/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\/vi\/product\/dynamic-balancer-balanset-1a\/\" title=\"M\u00e1y c\u00e2n b\u1eb1ng \u0111\u1ed9ng \u201cBalanset-1A\u201d OEM\">M\u00e1y c\u00e2n b\u1eb1ng \u0111\u1ed9ng \u201cBalanset-1A\u201d OEM<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>1,735.00<\/span> + Thu\u1ebf GTGT (n\u1ebfu c\u00f3)<\/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=\"\/vi\/wp-json\/wp\/v2\/glossary\/125?add-to-cart=4193\" data-quantity=\"1\" data-product_id=\"4193\" data-product_sku=\"BS-1OEM\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng\" 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=\"\/vi\/wp-json\/wp\/v2\/glossary\/125?add-to-cart=4193\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_4193\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"4193\" data-product_sku=\"BS-1OEM\" aria-label=\"Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng: \u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"\u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d \u0111\u00e3 \u0111\u01b0\u1ee3c th\u00eam v\u00e0o gi\u1ecf h\u00e0ng c\u1ee7a b\u1ea1n\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Th\u00eam v\u00e0o gi\u1ecf h\u00e0ng<\/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>C\u1ed9ng h\u01b0\u1edfng khung<\/strong> l\u00e0 m\u1ed9t d\u1ea1ng c\u1ee5 th\u1ec3 c\u1ee7a <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/structural-resonance\/\">c\u1ed9ng h\u01b0\u1edfng c\u1ea5u tr\u00fac<\/a> trong \u0111\u00f3 khung m\u00e1y, v\u1ecf, ho\u1eb7c bao v\u00e2y c\u1ee7a m\u00e1y rung \u0111\u1ed9ng \u1edf m\u1ed9t trong c\u00e1c <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/natural-frequency\/\">t\u1ea7n s\u1ed1 t\u1ef1 nhi\u00ean<\/a> ph\u1ea3n \u1ee9ng v\u1edbi k\u00edch th\u00edch t\u1eeb c\u00e1c th\u00e0nh ph\u1ea7n quay. Kh\u00f4ng gi\u1ed1ng nh\u01b0 c\u1ed9ng h\u01b0\u1edfng c\u1ee7a n\u1ec1n t\u1ea3ng ho\u1eb7c <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/pedestal-looseness\/\">b\u1ec7 m\u00e1y<\/a> c\u1ed9ng h\u01b0\u1edfng, li\u00ean quan \u0111\u1ebfn k\u1ebft c\u1ea5u h\u1ed7 tr\u1ee3 b\u00ean d\u01b0\u1edbi m\u00e1y, c\u1ed9ng h\u01b0\u1edfng khung s\u1ed1ng trong ch\u00ednh th\u00e2n m\u00e1y \u2014 c\u1ea5u tr\u00fac b\u1eb1ng gang \u0111\u00fac ho\u1eb7c th\u00e9p \u0111\u01b0\u1ee3c gia c\u00f4ng bao quanh c\u00e1c th\u00e0nh ph\u1ea7n quay. Khi t\u1ea7n s\u1ed1 k\u00edch th\u00edch tr\u00f9ng v\u1edbi t\u1ea7n s\u1ed1 c\u1ed1 h\u1eefu c\u1ee7a khung, <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/resonance\/\">s\u1ef1 c\u1ed9ng h\u01b0\u1edfng<\/a> khu\u1ebfch \u0111\u1ea1i chuy\u1ec3n \u0111\u1ed9ng v\u01b0\u1ee3t xa nh\u1eefng g\u00ec l\u1ef1c k\u00edch th\u00edch duy nh\u1ea5t c\u00f3 th\u1ec3 g\u00e2y ra.<\/p>\n<p>C\u1ed9ng h\u01b0\u1edfng khung ph\u1ed5 bi\u1ebfn trong c\u00e1c m\u00e1y c\u00f3 v\u1ecf b\u1ecdc l\u1edbn, t\u01b0\u01a1ng \u0111\u1ed1i nh\u1eb9 \u2014 qu\u1ea1t, n\u1ed3i n\u01b0\u1edbc, m\u00e1y b\u01a1m v\u00e0 \u0111\u1ed9ng c\u01a1. N\u00f3 th\u01b0\u1eddng xu\u1ea5t hi\u1ec7n d\u01b0\u1edbi d\u1ea1ng ti\u1ebfng \u1ed3n qu\u00e1 m\u1ee9c, rung l\u1eafc nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c c\u1ee7a c\u00e1c n\u1eafp ho\u1eb7c t\u1ea5m che, v\u00e0 c\u00e1c ch\u1ec9 s\u1ed1 cao tr\u00ean <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/vibration\/\">rung \u0111\u1ed9ng<\/a> khung ho\u00e0n to\u00e0n kh\u00f4ng t\u01b0\u01a1ng x\u1ee9ng v\u1edbi rung \u0111\u1ed9ng rotor th\u1ef1c t\u1ebf. V\u00ec tri\u1ec7u ch\u1ee9ng tr\u00f4ng \u0111\u00e1ng b\u00e1o \u0111\u1ed9ng, c\u1ed9ng h\u01b0\u1edfng khung l\u00e0 m\u1ed9t trong nh\u1eefng v\u1ea5n \u0111\u1ec1 \u0111\u01b0\u1ee3c ch\u1ea9n \u0111o\u00e1n sai l\u1ea7m th\u01b0\u1eddng xuy\u00ean nh\u1ea5t trong th\u1ef1c t\u1ebf: m\u1ed9t nh\u00e0 ph\u00e2n t\u00edch th\u1ea5y m\u1ed9t ch\u1ec9 s\u1ed1 kh\u1ed5ng l\u1ed3 v\u00e0 l\u00ean \u00e1n m\u1ed9t rotor \u0111\u01b0\u1ee3c c\u00e2n b\u1eb1ng ho\u00e0n h\u1ea3o.<\/p>\n<h2>1. \u0110\u1ecbnh ngh\u0129a: C\u1ed9ng h\u01b0\u1edfng khung l\u00e0 g\u00ec?<\/h2>\n<p>M\u1ed7i k\u1ebft c\u1ea5u \u0111\u1ec1u c\u00f3 m\u1ed9t t\u1eadp h\u1ee3p c\u00e1c t\u1ea7n s\u1ed1 c\u1ed1 h\u1eefu v\u00e0 c\u00e1c h\u00ecnh th\u00e1i ch\u1ebf \u0111\u1ed9 li\u00ean quan m\u00e0 n\u00f3 c\u00f3 xu h\u01b0\u1edbng u\u1ed1n cong. Khung m\u00e1y kh\u00f4ng ngo\u1ea1i l\u1ec7. C\u00e1c b\u1ee9c t\u01b0\u1eddng, n\u1eafp \u0111\u1ea7u, ch\u00e2n \u0111\u1ebf v\u00e0 t\u1ea5m che c\u1ee7a n\u00f3 m\u1ed7i c\u00e1i \u0111\u1ec1u c\u00f3 ch\u1ebf \u0111\u1ed9 u\u1ed1n cong v\u00e0 xo\u1eafn, v\u00e0 m\u1ed9t t\u1ea5m che nh\u1eb9 c\u00f3 th\u1ec3 c\u00f3 nhi\u1ec1u ch\u1ebf \u0111\u1ed9 ri\u00eang trong ph\u1ea1m vi nghe \u0111\u01b0\u1ee3c. Mi\u1ec5n l\u00e0 nh\u1eefng t\u1ea7n s\u1ed1 \u0111\u00f3 \u1edf xa t\u1ea7n s\u1ed1 k\u00edch th\u00edch c\u1ee7a m\u00e1y, khung ch\u1ec9 truy\u1ec1n l\u1ef1c m\u1ed9t c\u00e1ch y\u00ean t\u0129nh. R\u1eafc r\u1ed1i b\u1eaft \u0111\u1ea7u khi t\u1ea7n s\u1ed1 ho\u1ea1t \u0111\u1ed9ng tr\u00f9ng v\u1edbi m\u1ed9t ch\u1ebf \u0111\u1ed9 khung v\u00e0 k\u1ebft c\u1ea5u b\u1eaft \u0111\u1ea7u ph\u00e1t \u00e2m.<\/p>\n<p>\u0110\u1eb7c \u0111i\u1ec3m n\u1ed5i b\u1eadt c\u1ee7a c\u1ed9ng h\u01b0\u1edfng khung l\u00e0 <em>khu\u1ebfch \u0111\u1ea1i<\/em>: khung chuy\u1ec3n \u0111\u1ed9ng g\u1ea5p nhi\u1ec1u l\u1ea7n so v\u1edbi nh\u1eefng \u1ed5 tr\u1ee5c n\u00f3 bao quanh. N\u0103ng l\u01b0\u1ee3ng \u0111\u1ebfn t\u1eeb rotor, nh\u01b0ng ph\u1ea3n \u1ee9ng thu\u1ed9c v\u1ec1 k\u1ebft c\u1ea5u. \u0110\u00e2y l\u00e0 l\u00fd do t\u1ea1i sao c\u00e1c ph\u00e9p \u0111o \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n tr\u00ean khung c\u00f3 th\u1ec3 \u0111\u1ecdc cao h\u01a1n n\u0103m \u0111\u1ebfn m\u01b0\u1eddi l\u1ea7n so v\u1edbi c\u00e1c ph\u00e9p \u0111o t\u1ea1i v\u1ecf \u1ed5 tr\u1ee5c ch\u1ec9 c\u00e1ch v\u00e0i cm. Thu\u1ed9c t\u00ednh c\u01a1 b\u1ea3n x\u00e1c \u0111\u1ecbnh n\u01a1i nh\u1eefng ch\u1ebf \u0111\u1ed9 n\u00e0y r\u01a1i l\u00e0 <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/stiffness\/\">\u0111\u1ed9 c\u1ee9ng<\/a> t\u01b0\u01a1ng \u0111\u1ed1i v\u1edbi kh\u1ed1i l\u01b0\u1ee3ng \u2014 l\u00e0m c\u1ee9ng khung v\u00e0 c\u00e1c t\u1ea7n s\u1ed1 t\u0103ng l\u00ean; th\u00eam kh\u1ed1i l\u01b0\u1ee3ng v\u00e0 ch\u00fang gi\u1ea3m xu\u1ed1ng.<\/p>\n<h2>2. C\u00e1c t\u00ecnh hu\u1ed1ng c\u1ed9ng h\u01b0\u1edfng khung ph\u1ed5 bi\u1ebfn<\/h2>\n<h3>Khung \u0111\u1ed9ng c\u01a1 v\u00e0 m\u00e1y ph\u00e1t<\/h3>\n<ul>\n<li><strong>T\u1ea7n s\u1ed1 ri\u00eang:<\/strong> th\u01b0\u1eddng 50\u2013400 Hz t\u00f9y thu\u1ed9c v\u00e0o k\u00edch th\u01b0\u1edbc v\u00e0 c\u1ea5u tr\u00fac.<\/li>\n<li><strong>S\u1ef1 k\u00edch th\u00edch:<\/strong> 1\u00d7 (<a href=\"https:\/\/vibromera.eu\/vi\/glossary\/unbalance\/\">m\u1ea5t c\u00e2n b\u1eb1ng<\/a>), 2\u00d7 t\u1ea7n s\u1ed1 l\u01b0\u1edbi \u0111i\u1ec7n (120 Hz tr\u00ean cung c\u1ea5p 60 Hz, 100 Hz tr\u00ean 50 Hz), v\u00e0 l\u1ef1c \u0111i\u1ec7n t\u1eeb g\u1eafn li\u1ec1n v\u1edbi <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/electrical-frequency\/\">t\u1ea7n s\u1ed1 \u0111i\u1ec7n<\/a>.<\/li>\n<li><strong>Tri\u1ec7u ch\u1ee9ng:<\/strong> rung \u0111\u1ed9ng khung cao h\u01a1n rung \u0111\u1ed9ng \u1ed5 tr\u1ee5c; m\u1ed9t ti\u1ebfng v\u1ea9n v\u01a1 ho\u1eb7c b\u00faa nghe \u0111\u01b0\u1ee3c.<\/li>\n<li><strong>M\u1ee9c \u0111\u1ed9 nghi\u00eam tr\u1ecdng:<\/strong> khung c\u00f3 th\u1ec3 \u0111\u1ecdc cao h\u01a1n t\u1eeb 5\u201310\u00d7 so v\u1edbi c\u00e1c v\u00f2ng bi.<\/li>\n<\/ul>\n<h3>V\u1ecf qu\u1ea1t v\u00e0 m\u00e1y th\u1ed5i<\/h3>\n<ul>\n<li><strong>T\u1ea7n s\u1ed1 ri\u00eang:<\/strong> 20\u2013200 Hz cho c\u00e1c qu\u1ea1t c\u00f4ng nghi\u1ec7p \u0111i\u1ec3n h\u00ecnh.<\/li>\n<li><strong>S\u1ef1 k\u00edch th\u00edch:<\/strong> <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/blade-passing-frequency\/\">t\u1ea7n s\u1ed1 l\u01b0\u1ee1i dao \u0111i qua<\/a> (s\u1ed1 l\u00e1 qu\u1ea1t \u00d7 RPM).<\/li>\n<li><strong>Tri\u1ec7u ch\u1ee9ng:<\/strong> T\u1ea5m v\u1ecf rung l\u1eafc d\u1eef d\u1ed9i; ti\u1ebfng \u1ed3n kh\u00ed \u0111\u1ed9ng h\u1ecdc l\u1edbn<\/li>\n<li><strong>\u0110\u1eb7c \u0111i\u1ec3m:<\/strong> c\u00f3 th\u1ec3 ch\u1ec9 xu\u1ea5t hi\u1ec7n \u1edf c\u00e1c t\u1ed1c \u0111\u1ed9 ho\u1eb7c \u0111i\u1ec1u ki\u1ec7n l\u01b0u l\u01b0\u1ee3ng c\u1ee5 th\u1ec3.<\/li>\n<\/ul>\n<h3>V\u1ecf b\u01a1m<\/h3>\n<ul>\n<li><strong>T\u1ea7n s\u1ed1 ri\u00eang:<\/strong> 30\u2013300 Hz t\u00f9y thu\u1ed9c v\u00e0o thi\u1ebft k\u1ebf v\u1ecf b\u1ecdc.<\/li>\n<li><strong>S\u1ef1 k\u00edch th\u00edch:<\/strong> <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/vane-passing-frequency\/\">t\u1ea7n s\u1ed1 c\u00e1nh qu\u1ea1t<\/a> v\u00e0 dao \u0111\u1ed9ng th\u1ee7y l\u1ef1c.<\/li>\n<li><strong>Tri\u1ec7u ch\u1ee9ng:<\/strong> rung \u0111\u1ed9ng v\u1ecf b\u1ecdc, ti\u1ebfng \u1ed3n, v\u00e0 nguy c\u01a1 n\u1ee9t do m\u1ec7t m\u1ecfi.<\/li>\n<li><strong>Kh\u1edbp n\u1ed1i th\u1ee7y l\u1ef1c:<\/strong> v\u1ecf b\u1ecdc ch\u1ee9a \u0111\u1ea7y ch\u1ea5t l\u1ecfng c\u00f3 th\u1ec3 k\u1ebft h\u1ee3p rung \u0111\u1ed9ng c\u1ee7a rotor v\u00e0 v\u1ecf b\u1ecdc, l\u00e0m ph\u1ee9c t\u1ea1p h\u00ecnh \u1ea3nh.<\/li>\n<\/ul>\n<h3>V\u1ecf h\u1ed9p s\u1ed1<\/h3>\n<ul>\n<li>B\u1ecb k\u00edch th\u00edch b\u1edfi <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/gear-mesh-frequency\/\">t\u1ea7n s\u1ed1 \u0103n kh\u1edbp b\u00e1nh r\u0103ng<\/a>.<\/li>\n<li>T\u1ea7n s\u1ed1 t\u1ef1 nhi\u00ean c\u1ee7a khung th\u01b0\u1eddng tr\u00f9ng v\u1edbi t\u1ea7n s\u1ed1 l\u01b0\u1edbi v\u00e0 c\u00e1c s\u00f3ng h\u00e0i c\u1ee7a n\u00f3.<\/li>\n<li>T\u1ea1o ra ti\u1ebfng k\u00eau b\u00e1nh r\u0103ng \u0111\u1eb7c tr\u01b0ng l\u1edbn khi c\u1ed9ng h\u01b0\u1edfng.<\/li>\n<\/ul>\n<h2>3. Ch\u1eef k\u00fd rung \u0111\u1ed9ng v\u00e0 ph\u00e1t hi\u1ec7n<\/h2>\n<h3>Tri\u1ec7u ch\u1ee9ng \u0111\u1eb7c tr\u01b0ng<\/h3>\n<ul>\n<li><strong>Ph\u1ee5 thu\u1ed9c v\u00e0o v\u1ecb tr\u00ed:<\/strong> rung \u0111\u1ed9ng thay \u0111\u1ed5i r\u1ea5t nhi\u1ec1u tr\u00ean b\u1ec1 m\u1eb7t khung \u2014 nh\u1eefng s\u1ef1 kh\u00e1c bi\u1ec7t 10\u00d7 gi\u1eefa c\u00e1c \u0111i\u1ec3m l\u00e0 ph\u1ed5 bi\u1ebfn.<\/li>\n<li><strong>\u1ed4 tr\u1ee5c so v\u1edbi khung:<\/strong> rung \u0111\u1ed9ng khung v\u01b0\u1ee3t xa rung \u0111\u1ed9ng \u1ed5 tr\u1ee5c (th\u01b0\u1eddng 3\u201310\u00d7).<\/li>\n<li><strong>\u0110\u1eb7c tr\u01b0ng theo t\u1ea7n s\u1ed1:<\/strong> v\u1ea5n \u0111\u1ec1 ch\u1ec9 xu\u1ea5t hi\u1ec7n \u1edf t\u1ea7n s\u1ed1 c\u1ed9ng h\u01b0\u1edfng; c\u00e1c t\u1ea7n s\u1ed1 kh\u00e1c tr\u00f4ng b\u00ecnh th\u01b0\u1eddng.<\/li>\n<li><strong>Nh\u1ea1y c\u1ea3m v\u1edbi t\u1ed1c \u0111\u1ed9:<\/strong> nghi\u00eam tr\u1ecdng trong m\u1ed9t d\u1ea3i h\u1eb9p (\u00b110\u201320% c\u1ee7a t\u1ed1c \u0111\u1ed9 c\u1ed9ng h\u01b0\u1edfng).<\/li>\n<li><strong>Chuy\u1ec3n \u0111\u1ed9ng quan s\u00e1t \u0111\u01b0\u1ee3c:<\/strong> chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a khung th\u01b0\u1eddng c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c b\u1eb1ng m\u1eaft th\u01b0\u1eddng.<\/li>\n<\/ul>\n<h3>Ki\u1ec3m tra t\u00e1c \u0111\u1ed9ng (va ch\u1ea1m)<\/h3>\n<p>B\u00e0i ki\u1ec3m tra x\u00e1c \u0111\u1ecbnh. T\u00e1c \u0111\u1ed9ng v\u00e0o khung b\u1eb1ng b\u00faa cao su ho\u1eb7c b\u00faa \u0111\u01b0\u1ee3c thi\u1ebft b\u1ecb, \u0111o \u0111\u00e1p \u1ee9ng b\u1eb1ng m\u1ed9t <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/accelerometer\/\">c\u1ea3m bi\u1ebfn gia t\u1ed1c<\/a>, v\u00e0 \u0111\u1ecdc t\u1ea7n s\u1ed1 t\u1ef1 nhi\u00ean c\u1ee7a khung t\u1eeb c\u00e1c \u0111\u1ec9nh trong ph\u1ea3n \u1ee9ng t\u1ea7n s\u1ed1. So s\u00e1nh nh\u1eefng \u0111\u1ec9nh \u0111\u00f3 v\u1edbi c\u00e1c t\u1ea7n s\u1ed1 ho\u1ea1t \u0111\u1ed9ng (1\u00d7, 2\u00d7, l\u00e1 qu\u1ea1t \u0111i qua, v.v.) ngay l\u1eadp t\u1ee9c ti\u1ebft l\u1ed9 b\u1ea5t k\u1ef3 s\u1ef1 tr\u00f9ng h\u1ee3p nguy hi\u1ec3m n\u00e0o. Xem <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/bump-test\/\">ki\u1ec3m tra va ch\u1ea1m<\/a> and <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/impact-testing\/\">th\u1eed nghi\u1ec7m va \u0111\u1eadp<\/a> \u0111\u1ec3 xem to\u00e0n b\u1ed9 quy tr\u00ecnh.<\/p>\n<h3>Kh\u1ea3o s\u00e1t gia t\u1ed1c k\u1ebf di \u0111\u1ed9ng<\/h3>\n<p>Khi m\u00e1y \u0111ang ch\u1ea1y, \u0111o rung \u0111\u1ed9ng t\u1ea1i nhi\u1ec1u \u0111i\u1ec3m tr\u00ean khung v\u00e0 x\u00e2y d\u1ef1ng b\u1ea3n \u0111\u1ed3 rung \u0111\u1ed9ng c\u1ee7a c\u00e1c khu v\u1ef1c cao v\u00e0 th\u1ea5p. M\u00f4 h\u00ecnh ti\u1ebft l\u1ed9 h\u00ecnh d\u1ea1ng ch\u1ebf \u0111\u1ed9 \u2014 u\u1ed1n, xo\u1eafn, ho\u1eb7c u\u1ed1n t\u1ea5m \u2014 v\u00e0 x\u00e1c \u0111\u1ecbnh c\u00e1c n\u00fat ng\u01b0\u1ee3c (chuy\u1ec3n \u0111\u1ed9ng t\u1ed1i \u0111a) v\u00e0 n\u00fat (chuy\u1ec3n \u0111\u1ed9ng t\u1ed1i thi\u1ec3u). M\u1ed9t <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/ods-analysis\/\">Ph\u00e2n t\u00edch h\u00ecnh d\u1ea1ng bi\u1ebfn d\u1ea1ng ho\u1ea1t \u0111\u1ed9ng (ODS)<\/a> l\u00e0m cho chuy\u1ec3n \u0111\u1ed9ng n\u00e0y c\u00f3 hi\u1ec7u \u1ee9ng \u0111\u1ed9ng, v\u00e0 ch\u00ednh th\u1ee9c <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/modal-analysis\/\">ph\u00e2n t\u00edch modal<\/a> tr\u00edch xu\u1ea5t c\u00e1c ch\u1ebf \u0111\u1ed9 c\u01a1 b\u1ea3n.<\/p>\n<h3>\u0110o h\u00e0m truy\u1ec1n \u0111\u1ea1t<\/h3>\n<p>\u0110o l\u01b0\u1eddng <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/coherence\/\">\u0111\u1ed9 t\u01b0\u01a1ng quan<\/a> gi\u1eefa rung \u0111\u1ed9ng v\u00f2ng bi (\u0111\u1ea7u v\u00e0o) v\u00e0 rung \u0111\u1ed9ng khung (\u0111\u1ea7u ra). \u0110\u1ed9 k\u1ebft h\u1ee3p cao \u1edf m\u1ed9t t\u1ea7n s\u1ed1 c\u1ee5 th\u1ec3 x\u00e1c nh\u1eadn r\u1eb1ng chuy\u1ec3n \u0111\u1ed9ng khung \u0111\u01b0\u1ee3c t\u1ea1o b\u1edfi v\u00e0 c\u1ed9ng h\u01b0\u1edfng v\u1edbi l\u1ef1c bu\u1ed9c rotor. C\u00e1c <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/transfer-function\/\">h\u00e0m truy\u1ec1n<\/a> t\u1ef1 \u0111\u1ecbnh l\u01b0\u1ee3ng h\u1ec7 s\u1ed1 khu\u1ebfch \u0111\u1ea1i.<\/p>\n<h2>4. X\u00e1c nh\u1eadn C\u1ed9ng h\u01b0\u1edfng t\u1ea1i Hi\u1ec7n tr\u01b0\u1eddng<\/h2>\n<p>Tr\u01b0\u1edbc khi b\u1ea5t k\u1ef3 c\u1ea5u tr\u00fac n\u00e0o \u0111\u01b0\u1ee3c gia c\u1ee9ng ho\u1eb7c b\u1ea5t k\u1ef3 rotor n\u00e0o \u0111\u01b0\u1ee3c ch\u1ea1m v\u00e0o, ch\u1ea9n \u0111o\u00e1n ph\u1ea3i \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn \u2014 v\u00e0 \u0111i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 \u0111o l\u01b0\u1eddng h\u00e0nh vi th\u1ef1c s\u1ef1 c\u1ee7a rotor ri\u00eang bi\u1ec7t t\u1eeb khung h\u00ecnh. M\u1ed9t b\u1ed9 ph\u00e2n t\u00edch di \u0111\u1ed9ng hai k\u00eanh nh\u01b0 <a href=\"https:\/\/vibromera.eu\/vi\/san-pham\/balanset-1\/\">Balanset-1A<\/a> l\u00e0m cho \u0111i\u1ec1u n\u00e0y tr\u1edf n\u00ean \u0111\u01a1n gi\u1ea3n: m\u1ed9t nh\u00e0 ph\u00e2n t\u00edch c\u00f3 th\u1ec3 n\u1eafm b\u1eaft <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/phase\/\">bi\u00ean \u0111\u1ed9 v\u00e0 pha<\/a> v\u00e0 ph\u1ed5 \u0111\u1ea7y \u0111\u1ee7 t\u1ea1i v\u1ecf \u1ed5 tr\u1ee5c, sau \u0111\u00f3 di chuy\u1ec3n c\u1ea3m bi\u1ebfn l\u00ean b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n \u0111\u00e1ng ng\u1edd v\u00e0 theo d\u00f5i m\u1ee9c \u0111\u1ed9 t\u0103ng l\u00ean t\u1ea1i t\u1ea7n s\u1ed1 c\u1ed9ng h\u01b0\u1edfng trong khi pha d\u1ecbch chuy\u1ec3n qua ch\u1ebf \u0111\u1ed9 c\u1ea5u tr\u00fac. N\u1ebfu rung \u0111\u1ed9ng 1\u00d7 c\u1ee7a rotor khi\u00eam t\u1ed1n t\u1ea1i \u1ed5 tr\u1ee5c nh\u01b0ng kh\u1ed5ng l\u1ed3 tr\u00ean khung h\u00ecnh, k\u1ebft lu\u1eadn l\u00e0 c\u1ed9ng h\u01b0\u1edfng, kh\u00f4ng ph\u1ea3i m\u1ea5t c\u00e2n b\u1eb1ng. C\u00f9ng m\u1ed9t thi\u1ebft b\u1ecb cho ph\u00e9p b\u1ea1n th\u1eed c\u00e2n b\u1eb1ng rotor \u0111\u1ec3 lo\u1ea1i tr\u1eeb m\u1ea5t c\u00e2n b\u1eb1ng ho\u1eb7c x\u00e1c nh\u1eadn, v\u00e0 ch\u1ea1y h\u1ea1 t\u1ed1c \u0111\u1ed9 \u0111\u1ec3 \u0111\u1ec9nh c\u1ed9ng h\u01b0\u1edfng xu\u1ea5t hi\u1ec7n khi t\u1ed1c \u0111\u1ed9 qu\u00e9t qua n\u00f3.<\/p>\n<h2>5. Gi\u1ea3i ph\u00e1p v\u00e0 Gi\u1ea3m thi\u1ec3u<\/h2>\n<h3>C\u00e1c s\u1eeda \u0111\u1ed5i v\u1ec1 c\u1ee9ng nh\u1eafc<\/h3>\n<ul>\n<li><strong>Th\u00eam c\u00e1c s\u01b0\u1eddn ho\u1eb7c mi\u1ebfng ch\u00e8n k\u1ebft c\u1ea5u:<\/strong> t\u0103ng \u0111\u1ed9 c\u1ee9ng u\u1ed1n, n\u00e2ng t\u1ea7n s\u1ed1 t\u1ef1 nhi\u00ean l\u00ean tr\u00ean ph\u1ea1m vi k\u00edch th\u00edch, ti\u1ebft ki\u1ec7m chi ph\u00ed, v\u00e0 c\u00f3 th\u1ec3 l\u1eafp \u0111\u1eb7t l\u1ea1i cho thi\u1ebft b\u1ecb hi\u1ec7n c\u00f3.<\/li>\n<li><strong>T\u0103ng \u0111\u1ed9 d\u00e0y v\u1eadt li\u1ec7u:<\/strong> l\u00e0m d\u00e0y c\u00e1c t\u01b0\u1eddng ho\u1eb7c t\u1ea5m khung \u0111\u00e1ng k\u1ec3 n\u00e2ng \u0111\u1ed9 c\u1ee9ng v\u00e0 t\u1ea7n s\u1ed1, m\u1eb7c d\u00f9 n\u00f3 c\u00f3 th\u1ec3 y\u00eau c\u1ea7u \u0111\u00fac ho\u1eb7c gia c\u00f4ng m\u1edbi.<\/li>\n<li><strong>C\u00e1c bu\u1ed9c k\u1ebft c\u1ea5u v\u00e0 n\u1eb9p:<\/strong> k\u1ebft n\u1ed1i c\u00e1c c\u1ea1nh \u0111\u1ed1i di\u1ec7n c\u1ee7a khung ng\u0103n ch\u1eb7n s\u1ef1 u\u1ed1n; n\u1eb9p ch\u00e9o th\u00eam \u0111\u1ed9 c\u1ee9ng xo\u1eafn v\u00e0 th\u01b0\u1eddng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t b\u00ean ngo\u00e0i.<\/li>\n<\/ul>\n<h3>Th\u00eam kh\u1ed1i l\u01b0\u1ee3ng<\/h3>\n<ul>\n<li><strong>H\u1ea1 t\u1ea7n s\u1ed1 t\u1ef1 nhi\u00ean:<\/strong> th\u00eam kh\u1ed1i l\u01b0\u1ee3ng \u0111\u1ec3 h\u1ea1 t\u1ea7n s\u1ed1 d\u01b0\u1edbi ph\u1ea1m vi k\u00edch th\u00edch.<\/li>\n<li><strong>V\u1ecb tr\u00ed chi\u1ebfn l\u01b0\u1ee3c:<\/strong> th\u00eam kh\u1ed1i l\u01b0\u1ee3ng \u1edf v\u1ecb tr\u00ed n\u00fat ch\u1ed1ng \u0111\u1ec3 c\u00f3 hi\u1ec7u qu\u1ea3 t\u1ed1i \u0111a.<\/li>\n<li><strong>Kh\u1ed1i l\u01b0\u1ee3ng \u0111i\u1ec1u ch\u1ec9nh:<\/strong> kh\u1ed1i l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n c\u1ea9n th\u1eadn chuy\u1ec3n d\u1eddi m\u1ed9t ch\u1ebf \u0111\u1ed9 c\u1ee5 th\u1ec3 g\u00e2y ra v\u1ea5n \u0111\u1ec1.<\/li>\n<li><strong>S\u1ef1 \u0111\u00e1nh \u0111\u1ed5i:<\/strong> tr\u1ecdng l\u01b0\u1ee3ng b\u1ed5 sung kh\u00f4ng mong mu\u1ed1n trong m\u1ecdi \u1ee9ng d\u1ee5ng.<\/li>\n<\/ul>\n<p>Cho d\u00f9 b\u1ea1n ch\u1ecdn n\u00e2ng ho\u1eb7c h\u1ea1 t\u1ea7n s\u1ed1, m\u1ed9t t\u00ednh to\u00e1n nhanh gi\u1eef b\u1ea1n ra kh\u1ecfi d\u1ea3i c\u1ed9ng h\u01b0\u1edfng ti\u1ebfp theo. M\u1ed9t <a href=\"https:\/\/vibromera.eu\/vi\/calculators\/foundation-natural-frequency\/\">m\u00e1y t\u00ednh t\u1ea7n s\u1ed1 t\u1ef1 nhi\u00ean c\u1ee7a n\u1ec1n t\u1ea3ng<\/a> v\u00e0 m\u1ed9t <a href=\"https:\/\/vibromera.eu\/vi\/calculators\/damping-ratio-calculator\/\">m\u00e1y t\u00ednh t\u1ef7 l\u1ec7 c\u1ea3n<\/a> gi\u00fap b\u1ea1n \u01b0\u1edbc t\u00ednh n\u01a1i m\u1ed9t c\u1ea5u tr\u00fac \u0111\u01b0\u1ee3c s\u1eeda \u0111\u1ed5i s\u1ebd \u0111\u01b0\u1ee3c \u0111\u1eb7t tr\u01b0\u1edbc khi b\u1ea5t k\u1ef3 kim lo\u1ea1i n\u00e0o b\u1ecb c\u1eaft.<\/p>\n<h3>X\u1eed l\u00fd c\u1ea3n<\/h3>\n<ul>\n<li><strong>C\u1ea3n l\u1edbp b\u1ecb r\u00e0ng bu\u1ed9c:<\/strong> m\u1ed9t l\u1edbp viscoelastic k\u1eb9p gi\u1eefa c\u00e1c l\u1edbp kim lo\u1ea1i, \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng cho c\u00e1c t\u1ea5m ph\u1eb3ng l\u1edbn v\u00e0 n\u1eafp. Gi\u1ea3m \u0111\u1ec9nh c\u1ed9ng h\u01b0\u1edfng 50\u201380% v\u00e0 ho\u1ea1t \u0111\u1ed9ng t\u1ed1t tr\u00ean kho\u1ea3ng 20\u2013500 Hz.<\/li>\n<li><strong>Gi\u1ea3m ch\u1ea5n l\u1edbp t\u1ef1 do:<\/strong> v\u1eadt li\u1ec7u gi\u1ea3m ch\u1ea5n \u0111\u01b0\u1ee3c g\u1eafn tr\u1ef1c ti\u1ebfp v\u00e0o b\u1ec1 m\u1eb7t rung \u0111\u1ed9ng \u2014 \u0111\u01a1n gi\u1ea3n h\u01a1n gi\u1ea3m ch\u1ea5n l\u1edbp b\u1ecb r\u00e0ng bu\u1ed9c nh\u01b0ng k\u00e9m hi\u1ec7u qu\u1ea3, h\u1eefu \u00edch khi ti\u1ebfp c\u1eadn b\u1ecb h\u1ea1n ch\u1ebf.<\/li>\n<\/ul>\n<h3>Thay \u0111\u1ed5i ho\u1ea1t \u0111\u1ed9ng<\/h3>\n<ul>\n<li><strong>Thay \u0111\u1ed5i t\u1ed1c \u0111\u1ed9:<\/strong> ch\u1ea1y \u1edf t\u1ed1c \u0111\u1ed9 n\u01a1i c\u1ed9ng h\u01b0\u1edfng kh\u00f4ng x\u1ea3y ra.<\/li>\n<li><strong>Gi\u1ea3m l\u1ef1c t\u00e1c \u0111\u1ed9ng:<\/strong> c\u1ea3i thi\u1ec7n <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/balancing\/\">TH\u0102NG B\u1eb0NG<\/a> and <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/misalignment\/\">s\u1ef1 li\u00ean k\u1ebft<\/a> \u0111\u1ec3 gi\u1ea3m bi\u00ean \u0111\u1ed9 k\u00edch th\u00edch m\u00e0 nu\u00f4i d\u01b0\u1ee1ng c\u1ed9ng h\u01b0\u1edfng.<\/li>\n<li><strong>Thay \u0111\u1ed5i quy tr\u00ecnh:<\/strong> Thay \u0111\u1ed5i l\u01b0u l\u01b0\u1ee3ng, \u00e1p su\u1ea5t ho\u1eb7c t\u1ea3i \u0111\u1ec3 thay \u0111\u1ed5i t\u1ea7n s\u1ed1 k\u00edch th\u00edch<\/li>\n<\/ul>\n<h2>6. Ph\u00f2ng ch\u1ed1ng trong Thi\u1ebft k\u1ebf<\/h2>\n<h3>C\u00e1c nguy\u00ean t\u1eafc thi\u1ebft k\u1ebf<\/h3>\n<ul>\n<li><strong>\u0110\u1ed9 c\u1ee9ng nh\u1eafc \u0111\u1ee7:<\/strong> thi\u1ebft k\u1ebf khung sao cho c\u00e1c t\u1ea7n s\u1ed1 t\u1ef1 nhi\u00ean c\u1ee7a n\u00f3 n\u1eb1m tr\u00ean 2\u00d7 t\u1ea7n s\u1ed1 k\u00edch th\u00edch cao nh\u1ea5t.<\/li>\n<li><strong>Ph\u00e2n b\u1ed1 kh\u1ed1i l\u01b0\u1ee3ng:<\/strong> tr\u00e1nh c\u00e1c kh\u1ed1i l\u01b0\u1ee3ng t\u1eadp trung t\u1ea1o ra c\u00e1c ch\u1ebf \u0111\u1ed9 t\u1ea7n s\u1ed1 th\u1ea5p.<\/li>\n<li><strong>Li\u00ean k\u1ebft s\u01b0\u1eddn v\u00e0 gia c\u1ed1:<\/strong> x\u00e2y d\u1ef1ng c\u00e1c t\u00ednh n\u0103ng c\u1ee9ng nh\u1eafc t\u1eeb \u0111\u1ea7u.<\/li>\n<li><strong>Ph\u00e2n t\u00edch ph\u01b0\u01a1ng th\u1ee9c:<\/strong> s\u1eed d\u1ee5ng FEA trong qu\u00e1 tr\u00ecnh thi\u1ebft k\u1ebf \u0111\u1ec3 d\u1ef1 \u0111o\u00e1n v\u00e0 t\u1ed1i \u01b0u h\u00f3a c\u00e1c t\u1ea7n s\u1ed1 t\u1ef1 nhi\u00ean.<\/li>\n<\/ul>\n<h3>X\u00e1c minh thi\u1ebft k\u1ebf<\/h3>\n<ul>\n<li>Th\u1eed nghi\u1ec7m nguy\u00ean m\u1eabu v\u1edbi ph\u00e2n t\u00edch t\u00e1c \u0111\u1ed9ng.<\/li>\n<li>\u0110o l\u01b0\u1eddng h\u00ecnh d\u1ea1ng \u0111\u1ed9 l\u1ec7ch khi ho\u1ea1t \u0111\u1ed9ng tr\u00ean c\u00e1c \u0111\u01a1n v\u1ecb \u0111\u1ea7u ti\u00ean \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t.<\/li>\n<li>S\u1eeda \u0111\u1ed5i thi\u1ebft k\u1ebf tr\u01b0\u1edbc khi s\u1ea3n xu\u1ea5t h\u00e0ng lo\u1ea1t n\u1ebfu ph\u00e1t hi\u1ec7n c\u1ed9ng h\u01b0\u1edfng.<\/li>\n<\/ul>\n<h2>7. V\u00ed d\u1ee5 tr\u01b0\u1eddng h\u1ee3p<\/h2>\n<p><strong>T\u00ecnh hu\u1ed1ng:<\/strong> m\u1ed9t \u0111\u1ed9ng c\u01a1 75 HP ch\u1ea1y qu\u1ea1t li t\u00e2m, v\u1edbi ti\u1ebfng \u1ed3n v\u00e0 rung \u0111\u1ed9ng qu\u00e1 m\u1ee9c.<\/p>\n<ul>\n<li><strong>Tri\u1ec7u ch\u1ee9ng:<\/strong> rung \u0111\u1ed9ng khung \u0111\u1ed9ng c\u01a1 12 mm\/s; rung \u0111\u1ed9ng v\u00f2ng bi ch\u1ec9 2,5 mm\/s.<\/li>\n<li><strong>T\u1ea7n s\u1ed1:<\/strong> 120 Hz (2\u00d7 t\u1ea7n s\u1ed1 d\u00f2ng \u0111i\u1ec7n tr\u00ean cung c\u1ea5p 60 Hz).<\/li>\n<li><strong>Th\u1eed nghi\u1ec7m va \u0111\u1eadp:<\/strong> ph\u00e1t hi\u1ec7n ra m\u1ed9t t\u1ea7n s\u1ed1 t\u1ef1 nhi\u00ean khung t\u1ea1i 118 Hz \u2014 g\u1ea7n nh\u01b0 ch\u00ednh x\u00e1c \u1edf t\u1ea7n s\u1ed1 k\u00edch th\u00edch.<\/li>\n<li><strong>Nguy\u00ean nh\u00e2n g\u1ed1c r\u1ec5:<\/strong> khung b\u1ecb c\u1ed9ng h\u01b0\u1edfng \u1edf t\u1ea7n s\u1ed1 k\u00edch th\u00edch \u0111i\u1ec7n t\u1eeb.<\/li>\n<li><strong>Gi\u1ea3i ph\u00e1p:<\/strong> b\u1ed1n gusset s\u1eaft g\u00f3c \u0111\u01b0\u1ee3c th\u00eam v\u00e0o, k\u1ebft n\u1ed1i c\u00e1c ch\u00e2n \u0111\u1ed9ng c\u01a1 v\u1edbi c\u00e1c ph\u00eda chu\u00f4ng.<\/li>\n<li><strong>K\u1ebft qu\u1ea3:<\/strong> t\u1ea7n s\u1ed1 t\u1ef1 nhi\u00ean khung d\u1ecbch chuy\u1ec3n sang 165 Hz v\u00e0 rung \u0111\u1ed9ng gi\u1ea3m xu\u1ed1ng 3,2 mm\/s \u2014 tho\u1ea3i m\u00e1i quay tr\u1edf l\u1ea1i ph\u1ea1m vi ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c d\u01b0\u1edbi <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/iso-20816-3\/\">ISO 20816-3<\/a> (ng\u01b0\u1eddi k\u1ebf th\u1eeba hi\u1ec7n \u0111\u1ea1i c\u1ee7a ISO 10816-3).<\/li>\n<li><strong>Chi ph\u00ed:<\/strong> kho\u1ea3ng $200 trong v\u1eadt li\u1ec7u, so v\u1edbi kho\u1ea3ng $8.000 cho vi\u1ec7c thay th\u1ebf \u0111\u1ed9ng c\u01a1.<\/li>\n<\/ul>\n<p>C\u1ed9ng h\u01b0\u1edfng khung l\u00e0 m\u1ed9t v\u1ea5n \u0111\u1ec1 dao \u0111\u1ed9ng ph\u1ed5 bi\u1ebfn nh\u01b0ng th\u01b0\u1eddng b\u1ecb ch\u1ea9n \u0111o\u00e1n sai. Nh\u1eadn ra nh\u1eefng d\u1ea5u hi\u1ec7u \u0111\u1eb7c tr\u01b0ng \u2014 dao \u0111\u1ed9ng khung cao so v\u1edbi dao \u0111\u1ed9ng \u1ed5 tr\u1ee5c, t\u1ea7n s\u1ed1 r\u1ea5t c\u1ee5 th\u1ec3, ph\u1ee5 thu\u1ed9c m\u1ea1nh v\u00e0o v\u1ecb tr\u00ed \u2014 v\u00e0 \u00e1p d\u1ee5ng c\u00e1c k\u1ef9 thu\u1eadt ch\u1ea9n \u0111o\u00e1n \u0111\u00fang (th\u1eed t\u00e1c \u0111\u1ed9ng v\u00e0 ph\u00e2n t\u00edch ODS) d\u1eabn \u0111\u1ebfn c\u00e1c bi\u1ec7n ph\u00e1p s\u1eeda ch\u1eefa nh\u1eafm m\u1ee5c ti\u00eau c\u00f3 th\u1ec3 gi\u1ea3m dao \u0111\u1ed9ng v\u1edbi chi ph\u00ed r\u1ea5t h\u1ee3p l\u00fd.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/vi\/glossary\/\">\u2190 Quay l\u1ea1i M\u1ee5c l\u1ee5c ch\u00ednh<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>T\u00ecm hi\u1ec3u v\u1ec1 c\u1ed9ng h\u01b0\u1edfng khung, khu\u1ebfch \u0111\u1ea1i rung \u0111\u1ed9ng khi khung m\u00e1y, v\u1ecf m\u00e1y ho\u1eb7c v\u1ecf b\u1ecdc c\u1ed9ng h\u01b0\u1edfng \u1edf t\u1ea7n s\u1ed1 ho\u1ea1t \u0111\u1ed9ng, g\u00e2y ra ti\u1ebfng \u1ed3n qu\u00e1 m\u1ee9c v\u00e0 \u1ee9ng su\u1ea5t c\u1ea5u tr\u00fac.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,110],"tags":[],"class_list":["post-125","glossary","type-glossary","status-publish","hentry","category-glossary","category-vibration-diagnostics"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/glossary\/125","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/glossary\/125\/revisions"}],"predecessor-version":[{"id":101384,"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/glossary\/125\/revisions\/101384"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/media?parent=125"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/categories?post=125"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/tags?post=125"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}