{"id":171,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/n-plus-2-method\/"},"modified":"2026-07-03T10:11:26","modified_gmt":"2026-07-03T10:11:26","slug":"n-plus-2-method","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/vi\/glossary\/n-plus-2-method\/","title":{"rendered":"Ph\u01b0\u01a1ng ph\u00e1p N+2 trong c\u00e2n b\u1eb1ng \u0111a m\u1eb7t ph\u1eb3ng l\u00e0 g\u00ec?"},"content":{"rendered":"<h1>Hi\u1ec3u v\u1ec1 ph\u01b0\u01a1ng ph\u00e1p N+2 trong c\u00e2n b\u1eb1ng \u0111a m\u1eb7t ph\u1eb3ng<\/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\/171?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\/171?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\/171?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\/171?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\/171?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\/171?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\/171?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\/171?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\/171?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\/171?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\/171?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\/171?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\/171?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\/171?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>The <strong>Ph\u01b0\u01a1ng ph\u00e1p N+2<\/strong> l\u00e0 m\u1ed9t n\u00e2ng cao <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/balancing\/\">c\u00e2n b\u1eb1ng<\/a> th\u1ee7 t\u1ee5c \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/multi-plane-balancing\/\">c\u00e2n b\u1eb1ng \u0111a m\u1eb7t ph\u1eb3ng<\/a> c\u1ee7a <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/flexible-rotor\/\">r\u00f4to linh ho\u1ea1t<\/a>. T\u00ean g\u1ecdi c\u1ee7a n\u00f3 xu\u1ea5t ph\u00e1t t\u1eeb m\u1ed9t quy t\u1eafc v\u1ec1 m\u1eb7t ph\u1eb3ng hi\u1ec7u ch\u1ec9nh \u0111\u01b0\u1ee3c h\u00ecnh th\u1ee9c h\u00f3a trong ISO 21940-12 (tr\u01b0\u1edbc \u0111\u00e2y l\u00e0 ISO 11342): \u0111\u1ec3 c\u00e2n b\u1eb1ng m\u1ed9t r\u00f4to qua <em>N<\/em> c\u00e1c t\u1ed1c \u0111\u1ed9 t\u1edbi h\u1ea1n u\u1ed1n (c\u1ed9ng h\u01b0\u1edfng) khi vi\u1ec7c c\u00e2n b\u1eb1ng th\u00e2n c\u1ee9ng \u1edf t\u1ed1c \u0111\u1ed9 th\u1ea5p c\u0169ng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n, r\u00f4to n\u00f3i chung c\u1ea7n N <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/correction-plane\/\">m\u1eb7t ph\u1eb3ng hi\u1ec7u ch\u1ec9nh<\/a> cho N mode m\u1ec1m c\u1ed9ng th\u00eam hai m\u1eb7t ph\u1eb3ng n\u1eefa cho m\u1ea5t c\u00e2n b\u1eb1ng th\u00e2n c\u1ee9ng (t\u0129nh v\u00e0 ng\u1eabu l\u1ef1c) \u2014 t\u1ed5ng c\u1ed9ng N+2 m\u1eb7t ph\u1eb3ng. \u0110\u1eebng nh\u1ea7m \u0111i\u1ec1u n\u00e0y v\u1edbi s\u1ed1 l\u1ea7n ch\u1ea1y: trong quy tr\u00ecnh h\u1ec7 s\u1ed1 \u1ea3nh h\u01b0\u1edfng th\u1ef1c t\u1ebf \u0111\u01b0\u1ee3c m\u00f4 t\u1ea3 trong b\u00e0i vi\u1ebft n\u00e0y, <em>N<\/em> ch\u1ec9 s\u1ed1 l\u01b0\u1ee3ng m\u1eb7t ph\u1eb3ng hi\u1ec7u ch\u1ec9nh th\u1ef1c s\u1ef1 \u0111\u01b0\u1ee3c d\u00f9ng, v\u00e0 khi \u0111\u00f3 c\u00f4ng vi\u1ec7c c\u1ea7n N+2 l\u1ea7n ch\u1ea1y \u2014 m\u1ed9t l\u1ea7n n\u1ec1n ban \u0111\u1ea7u, N <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/trial-weight\/\">tr\u1ecdng l\u01b0\u1ee3ng th\u1eed<\/a> l\u1ea7n ch\u1ea1y (m\u1ed7i m\u1eb7t ph\u1eb3ng m\u1ed9t l\u1ea7n) v\u00e0 m\u1ed9t l\u1ea7n x\u00e1c minh cu\u1ed1i. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y m\u1edf r\u1ed9ng logic c\u1ee7a <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/two-plane-balancing\/\">c\u00e2n b\u1eb1ng hai m\u1eb7t ph\u1eb3ng<\/a> \u0111\u1ec3 rotor c\u1ea7n ba ho\u1eb7c nhi\u1ec1u m\u1eb7t ph\u1eb3ng h\u01a1n, m\u1ed9t t\u00ecnh hu\u1ed1ng ph\u1ed5 bi\u1ebfn trong tua-bin t\u1ed1c \u0111\u1ed9 cao, m\u00e1y n\u00e9n, m\u00e1y ph\u00e1t \u0111i\u1ec7n v\u00e0 cu\u1ed9n gi\u1ea5y m\u00e1y d\u00e0i.<\/p>\n<h2>1. \u0110\u1ecbnh ngh\u0129a: Ph\u01b0\u01a1ng ph\u00e1p N+2 l\u00e0 g\u00ec<\/h2>\n<p>A <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/rigid-rotor\/\">r\u00f4to c\u1ee9ng<\/a> ch\u1ea1y d\u01b0\u1edbi t\u1ea7n s\u1ed1 c\u1ed9ng h\u01b0\u1edfng \u0111\u1ea7u ti\u00ean c\u1ee7a n\u00f3 <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/critical-speed\/\">t\u1ed1c \u0111\u1ed9 t\u1edbi h\u1ea1n<\/a> c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o dung sai v\u1edbi s\u1ef1 \u0111i\u1ec1u ch\u1ec9nh \u0111\u01a1n gi\u1ea3n m\u1ed9t ho\u1eb7c hai m\u1eb7t ph\u1eb3ng, v\u00ec <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/unbalance\/\">m\u1ea5t c\u00e2n b\u1eb1ng<\/a> ph\u00e2n b\u1ed1 kh\u00f4ng thay \u0111\u1ed5i h\u00ecnh d\u1ea1ng theo t\u1ed1c \u0111\u1ed9. M\u1ed9t rotor linh ho\u1ea1t l\u00e0 kh\u00e1c bi\u1ec7t: khi n\u00f3 ch\u1ea1y \u1edf ho\u1eb7c v\u01b0\u1ee3t qu\u00e1 t\u1ed1c \u0111\u1ed9 t\u1edbi h\u1ea1n, n\u00f3 bending, v\u00e0 s\u1ef1 bending \u0111\u00f3 ph\u00e2n b\u1ed1 l\u1ea1i m\u1ea5t c\u00e2n b\u1eb1ng hi\u1ec7u d\u1ee5ng d\u1ecdc theo \u0111\u1ed9 d\u00e0i c\u1ee7a n\u00f3. \u0110i\u1ec1u ch\u1ec9nh n\u00f3 do \u0111\u00f3 \u0111\u00f2i h\u1ecfi m\u1ed9t s\u1ed1 m\u1eb7t ph\u1eb3ng tr\u1ea3i d\u00e0i d\u1ecdc theo tr\u1ee5c, v\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p c\u00f3 th\u1ec3 l\u00e0m s\u00e1ng t\u1ecf c\u00e1ch m\u1ed7i m\u1eb7t ph\u1eb3ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn rung \u0111\u1ed9ng \u1edf m\u1ecdi n\u01a1i kh\u00e1c. Ph\u01b0\u01a1ng ph\u00e1p N+2 l\u00e0 quy tr\u00ecnh k\u1ebf to\u00e1n c\u00f3 h\u1ec7 th\u1ed1ng \u0111\u00f3 \u2014 m\u1ed9t c\u00e1ch k\u1ef7 lu\u1eadt \u0111\u1ec3 m\u00f4 t\u1ea3 ho\u00e0n to\u00e0n rotor, sau \u0111\u00f3 gi\u1ea3i quy\u1ebft s\u1ef1 \u0111i\u1ec1u ch\u1ec9nh t\u1ed1t nh\u1ea5t \u1edf m\u1ed7i m\u1eb7t ph\u1eb3ng c\u00f9ng m\u1ed9t l\u00fac.<\/p>\n<h2>2. N\u1ec1n t\u1ea3ng To\u00e1n h\u1ecdc<\/h2>\n<p>Ph\u01b0\u01a1ng ph\u00e1p N+2 \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng tr\u00ean <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/influence-coefficient\/\">ph\u01b0\u01a1ng ph\u00e1p h\u1ec7 s\u1ed1 \u1ea3nh h\u01b0\u1edfng<\/a>, t\u1ed5ng qu\u00e1t h\u00f3a t\u1eeb m\u1ed9t ho\u1eb7c hai m\u1eb7t ph\u1eb3ng sang nhi\u1ec1u m\u1eb7t ph\u1eb3ng.<\/p>\n<h3>Ma tr\u1eadn h\u1ec7 s\u1ed1 \u1ea3nh h\u01b0\u1edfng<\/h3>\n<p>\u0110\u1ed1i v\u1edbi m\u1ed9t rotor c\u00f3 N m\u1eb7t ph\u1eb3ng hi\u1ec7u ch\u1ec9nh v\u00e0 M v\u1ecb tr\u00ed \u0111o l\u01b0\u1eddng (th\u01b0\u1eddng M \u2265 N), h\u1ec7 th\u1ed1ng \u0111\u01b0\u1ee3c m\u00f4 t\u1ea3 b\u1edfi m\u1ed9t ma tr\u1eadn M\u00d7N c\u1ee7a c\u00e1c h\u1ec7 s\u1ed1 \u1ea3nh h\u01b0\u1edfng. M\u1ed7i h\u1ec7 s\u1ed1 \u03b1<sub>ij<\/sub> m\u00f4 t\u1ea3 c\u00e1ch m\u1ed9t kh\u1ed1i l\u01b0\u1ee3ng \u0111\u01a1n v\u1ecb \u0111\u01b0\u1ee3c \u0111\u1eb7t trong m\u1eb7t ph\u1eb3ng s\u1eeda ch\u1eefa <em>j<\/em> \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 rung \u0111\u01b0\u1ee3c ghi nh\u1eadn t\u1ea1i v\u1ecb tr\u00ed \u0111o l\u01b0\u1eddng <em>i<\/em>. V\u1edbi b\u1ed1n m\u1eb7t ph\u1eb3ng s\u1eeda ch\u1eefa v\u00e0 b\u1ed1n v\u1ecb tr\u00ed \u0111o l\u01b0\u1eddng, v\u00ed d\u1ee5:<\/p>\n<ul>\n<li>\u03b1<sub>11<\/sub>, \u03b1<sub>12<\/sub>, \u03b1<sub>13<\/sub>, \u03b1<sub>14<\/sub> m\u00f4 t\u1ea3 c\u00e1ch m\u1ed7i m\u1eb7t ph\u1eb3ng trong b\u1ed1n m\u1eb7t ph\u1eb3ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn v\u1ecb tr\u00ed \u0111o l\u01b0\u1eddng 1;<\/li>\n<li>\u03b1<sub>21<\/sub>, \u03b1<sub>22<\/sub>, \u03b1<sub>23<\/sub>, \u03b1<sub>24<\/sub> m\u00f4 t\u1ea3 c\u00e1c t\u00e1c \u0111\u1ed9ng l\u00ean v\u1ecb tr\u00ed \u0111o l\u01b0\u1eddng 2;<\/li>\n<li>v\u00e0 c\u1ee9 ti\u1ebfp t\u1ee5c nh\u01b0 v\u1eady \u0111\u1ed1i v\u1edbi v\u1ecb tr\u00ed 3 v\u00e0 4.<\/li>\n<\/ul>\n<p>\u0110i\u1ec1u \u0111\u00f3 t\u1ea1o ra m\u1ed9t ma tr\u1eadn 4\u00d74 y\u00eau c\u1ea7u x\u00e1c \u0111\u1ecbnh m\u01b0\u1eddi s\u00e1u h\u1ec7 s\u1ed1 \u1ea3nh h\u01b0\u1edfng. M\u1ed7i h\u1ec7 s\u1ed1 l\u00e0 m\u1ed9t \u0111\u1ea1i l\u01b0\u1ee3ng ph\u1ee9c, mang c\u1ea3 \u0111\u1ed9 l\u1edbn v\u00e0 m\u1ed9t <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/phase\/\">pha<\/a> g\u00f3c, v\u00ec \u0111\u00e1p \u1ee9ng c\u1ee7a roto ch\u1eadm h\u01a1n l\u1ef1c t\u00e1c d\u1ee5ng.<\/p>\n<h3>Gi\u1ea3i h\u1ec7 th\u1ed1ng<\/h3>\n<p>Sau khi \u0111\u00e3 bi\u1ebft t\u1ea5t c\u1ea3 c\u00e1c h\u1ec7 s\u1ed1, ph\u1ea7n m\u1ec1m c\u00e2n b\u1eb1ng gi\u1ea3i h\u1ec7 M ph\u01b0\u01a1ng tr\u00ecnh vect\u01a1 \u0111\u1ed3ng th\u1eddi \u0111\u1ec3 t\u00ecm N kh\u1ed1i l\u01b0\u1ee3ng s\u1eeda ch\u1eefa (W<sub>1<\/sub>, W<sub>2<\/sub>, \u2026 W<sub>N<\/sub>) l\u00e0m c\u1ef1c ti\u1ec3u h\u00f3a <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/vibration\/\">rung \u0111\u1ed9ng<\/a> t\u1ea1i t\u1ea5t c\u1ea3 M v\u1ecb tr\u00ed c\u00f9ng m\u1ed9t l\u00fac. \u0110i\u1ec1u n\u00e0y d\u1ef1a v\u00e0o <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/vector-addition\/\">to\u00e1n h\u1ecdc vect\u01a1<\/a> v\u00e0 c\u00e1c thu\u1eadt to\u00e1n \u0111\u1ea3o ma tr\u1eadn (ho\u1eb7c b\u00ecnh ph\u01b0\u01a1ng t\u1ed1i thi\u1ec3u). Khi M v\u01b0\u1ee3t qu\u00e1 N, h\u1ec7 th\u1ed1ng b\u1ecb x\u00e1c \u0111\u1ecbnh d\u01b0 th\u1eeba v\u00e0 m\u1ed9t gi\u1ea3i ph\u00e1p b\u00ecnh ph\u01b0\u01a1ng t\u1ed1i thi\u1ec3u t\u00ecm th\u1ea5y t\u1eadp s\u1eeda ch\u1eefa cung c\u1ea5p \u0111\u1ed9 rung d\u01b0 l\u01b0\u1ee3ng nh\u1ecf nh\u1ea5t tr\u00ean t\u1ea5t c\u1ea3 c\u00e1c c\u1ea3m bi\u1ebfn \u2014 m\u1ed9t k\u1ebft qu\u1ea3 m\u1ea1nh m\u1ebd h\u01a1n khi c\u00f3 ti\u1ebfng \u1ed3n \u0111o l\u01b0\u1eddng.<\/p>\n<h2>3. Th\u1ee7 t\u1ee5c N+2, T\u1eebng B\u01b0\u1edbc<\/h2>\n<p>Th\u1ee7 t\u1ee5c tu\u00e2n theo m\u1ed9t chu\u1ed7i quy tr\u00ecnh c\u00f3 th\u1ec3 m\u1edf r\u1ed9ng t\u1ef1 nhi\u00ean theo s\u1ed1 l\u01b0\u1ee3ng m\u1eb7t ph\u1eb3ng s\u1eeda ch\u1eefa.<\/p>\n<h3>Ch\u1ea1y 1 \u2014 Ph\u00e9p \u0110o C\u01a1 S\u1edf L\u1ea7n \u0110\u1ea7u<\/h3>\n<p>Roto ch\u1ea1y \u1edf t\u1ed1c \u0111\u1ed9 c\u00e2n b\u1eb1ng trong tr\u1ea1ng th\u00e1i m\u1ea5t c\u00e2n b\u1eb1ng ban \u0111\u1ea7u c\u1ee7a n\u00f3. Bi\u00ean \u0111\u1ed9 \u0111\u1ed9 rung v\u00e0 <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/phase\/\">pha<\/a> \u0111\u01b0\u1ee3c ghi nh\u1eadn t\u1ea1i t\u1ea5t c\u1ea3 M v\u1ecb tr\u00ed \u2014 th\u01b0\u1eddng t\u1ea1i m\u1ed7i \u1ed5 tr\u1ee5c, v\u00e0 \u0111\u00f4i khi t\u1ea1i c\u00e1c v\u1ecb tr\u00ed trung gian \u0111\u1ec3 b\u1eaft chuy\u1ec3n \u0111\u1ed9ng gi\u1eefa kho\u1ea3ng. Nh\u1eefng ph\u00e9p \u0111o n\u00e0y x\u00e1c l\u1eadp c\u00e1c vect\u01a1 m\u1ea5t c\u00e2n b\u1eb1ng c\u01a1 b\u1ea3n ph\u1ea3i \u0111\u01b0\u1ee3c s\u1eeda ch\u1eefa.<\/p>\n<h3>C\u00e1c Ch\u1ea1y 2 \u0111\u1ebfn N+1 \u2014 C\u00e1c Ch\u1ea1y Th\u1eed Tr\u1ecdng L\u01b0\u1ee3ng Tu\u1ea7n T\u1ef1<\/h3>\n<p>\u0110\u1ed1i v\u1edbi m\u1ed7i m\u1eb7t ph\u1eb3ng s\u1eeda ch\u1eefa l\u1ea7n l\u01b0\u1ee3t, t\u1eeb 1 \u0111\u1ebfn N:<\/p>\n<ol>\n<li>D\u1eebng roto v\u00e0 g\u1eafn m\u1ed9t kh\u1ed1i l\u01b0\u1ee3ng th\u1eed nghi\u1ec7m c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng \u0111\u00e3 bi\u1ebft t\u1ea1i m\u1ed9t v\u1ecb tr\u00ed g\u00f3c \u0111\u00e3 bi\u1ebft trong m\u1eb7t ph\u1eb3ng duy nh\u1ea5t \u0111\u00f3.<\/li>\n<li>Ch\u1ea1y roto \u1edf c\u00f9ng t\u1ed1c \u0111\u1ed9 v\u00e0 \u0111o \u0111\u1ed9 rung t\u1ea1i t\u1ea5t c\u1ea3 M v\u1ecb tr\u00ed.<\/li>\n<li>S\u1ef1 thay \u0111\u1ed5i trong \u0111\u1ed9 rung \u2014 vect\u01a1 hi\u1ec7n t\u1ea1i tr\u1eeb \u0111i vect\u01a1 c\u01a1 b\u1ea3n \u2014 ti\u1ebft l\u1ed9 c\u00e1ch m\u1eb7t ph\u1eb3ng c\u1ee5 th\u1ec3 \u0111\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn m\u1ed7i v\u1ecb tr\u00ed \u0111o l\u01b0\u1eddng, mang l\u1ea1i m\u1ed9t c\u1ed9t c\u1ee7a ma tr\u1eadn h\u1ec7 s\u1ed1.<\/li>\n<li>H\u00e3y th\u00e1o b\u1ecf tr\u1ecdng l\u01b0\u1ee3ng th\u1eed nghi\u1ec7m tr\u01b0\u1edbc khi chuy\u1ec3n sang m\u1eb7t ph\u1eb3ng ti\u1ebfp theo (tr\u1eeb khi s\u1eed d\u1ee5ng bi\u1ebfn th\u1ec3 &#8220;\u0111\u1ec3 l\u1ea1i&#8221; c\u1ed1 \u00fd \u0111\u1ec3 ti\u1ebft ki\u1ec7m l\u01b0\u1ee3t ch\u1ea1y).<\/li>\n<\/ol>\n<p>Sau t\u1ea5t c\u1ea3 N l\u1ea7n ch\u1ea1y th\u1eed, ma tr\u1eadn h\u1ec7 s\u1ed1 \u1ea3nh h\u01b0\u1edfng ho\u00e0n ch\u1ec9nh M\u00d7N \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh.<\/p>\n<h3>Giai \u0111o\u1ea1n t\u00ednh to\u00e1n<\/h3>\n<p>Thi\u1ebft b\u1ecb gi\u1ea3i ph\u01b0\u01a1ng tr\u00ecnh ma tr\u1eadn \u0111\u1ec3 t\u00ednh to\u00e1n y\u00eau c\u1ea7u <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/correction-weight\/\">kh\u1ed1i l\u01b0\u1ee3ng hi\u1ec7u ch\u1ec9nh<\/a> \u2014 c\u1ea3 kh\u1ed1i l\u01b0\u1ee3ng v\u00e0 g\u00f3c \u2014 cho m\u1ed7i trong N m\u1eb7t ph\u1eb3ng.<\/p>\n<h3>L\u1ea7n ch\u1ea1y N+2 \u2014 X\u00e1c minh<\/h3>\n<p>T\u1ea5t c\u1ea3 N gi\u1ea3i ph\u00e1p \u0111i\u1ec1u ch\u1ec9nh \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t v\u0129nh vi\u1ec5n v\u00e0 l\u1ea7n ch\u1ea1y cu\u1ed1i c\u00f9ng x\u00e1c nh\u1eadn r\u1eb1ng \u0111\u1ed9 rung \u0111\u00e3 gi\u1ea3m xu\u1ed1ng m\u1ee9c ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c t\u1ea1i m\u1ed7i v\u1ecb tr\u00ed \u0111o l\u01b0\u1eddng. N\u1ebfu k\u1ebft qu\u1ea3 ch\u01b0a th\u1ecfa \u0111\u00e1ng, <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/trim-balance\/\">c\u00e2n b\u1eb1ng c\u1eaft<\/a> ho\u1eb7c th\u1ef1c hi\u1ec7n m\u1ed9t l\u1ea7n l\u1eb7p ti\u1ebfp theo b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c h\u1ec7 s\u1ed1 \u0111\u00e3 c\u00f3.<\/p>\n<h2>4. V\u00ed d\u1ee5 Minh h\u1ecda: C\u00e2n b\u1eb1ng B\u1ed1n M\u1eb7t ph\u1eb3ng (N = 4)<\/h2>\n<p>\u0110\u1ed1i v\u1edbi m\u1ed9t r\u00f4to d\u00e0i linh ho\u1ea1t c\u1ea7n b\u1ed1n m\u1eb7t ph\u1eb3ng hi\u1ec7u ch\u1ec9nh:<\/p>\n<ul>\n<li><strong>T\u1ed5ng s\u1ed1 l\u1ea7n ch\u1ea1y:<\/strong> 4 + 2 = 6.<\/li>\n<li><strong>Ch\u1ea1y 1:<\/strong> ph\u00e9p \u0111o ban \u0111\u1ea7u t\u1ea1i c\u1ea3 b\u1ed1n v\u00f2ng bi.<\/li>\n<li><strong>Ch\u1ea1y 2:<\/strong> tr\u1ecdng l\u01b0\u1ee3ng th\u1eed nghi\u1ec7m \u1edf M\u1eb7t ph\u1eb3ng 1, \u0111o t\u1ea5t c\u1ea3 b\u1ed1n v\u00f2ng bi.<\/li>\n<li><strong>Ch\u1ea1y 3:<\/strong> tr\u1ecdng l\u01b0\u1ee3ng th\u1eed nghi\u1ec7m \u1edf M\u1eb7t ph\u1eb3ng 2, \u0111o t\u1ea5t c\u1ea3 b\u1ed1n v\u00f2ng bi.<\/li>\n<li><strong>Ch\u1ea1y 4:<\/strong> tr\u1ecdng l\u01b0\u1ee3ng th\u1eed nghi\u1ec7m \u1edf M\u1eb7t ph\u1eb3ng 3, \u0111o t\u1ea5t c\u1ea3 b\u1ed1n v\u00f2ng bi.<\/li>\n<li><strong>Ch\u1ea1y 5:<\/strong> tr\u1ecdng l\u01b0\u1ee3ng th\u1eed nghi\u1ec7m \u1edf M\u1eb7t ph\u1eb3ng 4, \u0111o t\u1ea5t c\u1ea3 b\u1ed1n v\u00f2ng bi.<\/li>\n<li><strong>Ch\u1ea1y 6:<\/strong> x\u00e1c minh v\u1edbi t\u1ea5t c\u1ea3 b\u1ed1n gi\u1ea3i ph\u00e1p \u0111i\u1ec1u ch\u1ec9nh \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t.<\/li>\n<\/ul>\n<p>\u0110i\u1ec1u n\u00e0y x\u00e2y d\u1ef1ng m\u1ed9t ma tr\u1eadn 4\u00d74 v\u1edbi m\u01b0\u1eddi s\u00e1u h\u1ec7 s\u1ed1, \u0111\u01b0\u1ee3c gi\u1ea3i \u0111\u1ec3 t\u00ecm b\u1ed1n tr\u1ecdng l\u01b0\u1ee3ng \u0111i\u1ec1u ch\u1ec9nh t\u1ed1i \u01b0u. Ph\u00e9p t\u00ednh t\u01b0\u01a1ng t\u1ef1 cho m\u1ed9t c\u00f4ng vi\u1ec7c \u0111\u01a1n gi\u1ea3n h\u01a1n n\u1eb1m \u1ea9n sau m\u1ed9t <a href=\"https:\/\/vibromera.eu\/vi\/calculators\/influence-coefficient-calculator\/\">M\u00e1y t\u00ednh h\u1ec7 s\u1ed1 \u1ea3nh h\u01b0\u1edfng<\/a>, gi\u1ea3i tr\u01b0\u1eddng h\u1ee3p m\u1ed9t m\u1eb7t ph\u1eb3ng v\u00e0 l\u00e0m cho ph\u01b0\u01a1ng ph\u00e1p vector c\u01a1 b\u1ea3n d\u1ec5 th\u1ea5y tr\u01b0\u1edbc khi m\u1edf r\u1ed9ng.<\/p>\n<h2>5. \u01afu \u0111i\u1ec3m c\u1ee7a Ph\u01b0\u01a1ng ph\u00e1p N+2<\/h2>\n<p>C\u00e1ch ti\u1ebfp c\u1eadn n\u00e0y mang l\u1ea1i m\u1ed9t s\u1ed1 l\u1ee3i \u00edch quan tr\u1ecdng cho c\u00f4ng vi\u1ec7c \u0111a m\u1eb7t ph\u1eb3ng:<\/p>\n<ul>\n<li><strong>H\u1ec7 th\u1ed1ng v\u00e0 to\u00e0n di\u1ec7n:<\/strong> m\u1ed7i m\u1eb7t ph\u1eb3ng \u0111i\u1ec1u ch\u1ec9nh \u0111\u01b0\u1ee3c ki\u1ec3m tra \u0111\u1ed9c l\u1eadp, cung c\u1ea5p m\u1ed9t m\u00f4 t\u1ea3 \u0111\u1ea7y \u0111\u1ee7 v\u1ec1 <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/rotor-bearing-system\/\">h\u1ec7 th\u1ed1ng \u1ed5 tr\u1ee5c r\u00f4to<\/a>ph\u1ea3n \u1ee9ng &#8216; tr\u00ean t\u1ea5t c\u1ea3 c\u00e1c m\u1eb7t ph\u1eb3ng v\u00e0 v\u1ecb tr\u00ed.<\/li>\n<li><strong>N\u1eafm b\u1eaft c\u00e1c hi\u1ec7u \u1ee9ng t\u01b0\u01a1ng t\u00e1c ph\u1ee9c t\u1ea1p:<\/strong> trong c\u00e1c rotor linh ho\u1ea1t, m\u1ed9t kh\u1ed1i l\u01b0\u1ee3ng trong b\u1ea5t k\u1ef3 m\u1eb7t ph\u1eb3ng n\u00e0o c\u0169ng c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn vibration \u1edf m\u1ecdi v\u00f2i; ma tr\u1eadn ghi l\u1ea1i t\u1ea5t c\u1ea3 c\u00e1c t\u01b0\u01a1ng t\u00e1c \u0111\u00f3 m\u1ed9t c\u00e1ch r\u00f5 r\u00e0ng.<\/li>\n<li><strong>Ch\u1eb7t ch\u1ebd v\u1ec1 m\u1eb7t to\u00e1n h\u1ecdc:<\/strong> n\u00f3 s\u1eed d\u1ee5ng c\u00e1c k\u1ef9 thu\u1eadt \u0111\u1ea1i s\u1ed1 tuy\u1ebfn t\u00ednh \u0111\u01b0\u1ee3c c\u00f4ng nh\u1eadn r\u1ed9ng r\u00e3i (\u0111\u1ea3o ngh\u1ecbch ma tr\u1eadn, kh\u1edbp b\u00ecnh ph\u01b0\u01a1ng nh\u1ecf nh\u1ea5t) cung c\u1ea5p c\u00e1c gi\u1ea3i ph\u00e1p t\u1ed1i \u01b0u khi h\u1ec7 th\u1ed1ng ho\u1ea1t \u0111\u1ed9ng tuy\u1ebfn t\u00ednh.<\/li>\n<li><strong>Chi\u1ebfn l\u01b0\u1ee3c \u0111o l\u01b0\u1eddng linh ho\u1ea1t:<\/strong> cho ph\u00e9p M v\u01b0\u1ee3t qu\u00e1 N t\u1ea1o ra m\u1ed9t h\u1ec7 th\u1ed1ng x\u00e1c \u0111\u1ecbnh qu\u00e1 m\u1ee9c c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng nhi\u1ec5u t\u1ed1t h\u01a1n.<\/li>\n<li><strong>Ti\u00eau chu\u1ea9n ng\u00e0nh cho c\u00e1c rotor ph\u1ee9c t\u1ea1p:<\/strong> \u0111\u00e2y l\u00e0 ph\u01b0\u01a1ng ph\u00e1p \u0111\u01b0\u1ee3c ch\u1ea5p nh\u1eadn cho c\u00e1c m\u00e1y tuabin t\u1ed1c \u0111\u1ed9 cao v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng rotor linh ho\u1ea1t quan tr\u1ecdng kh\u00e1c.<\/li>\n<\/ul>\n<h2>6. Nh\u1eefng th\u00e1ch th\u1ee9c v\u00e0 h\u1ea1n ch\u1ebf<\/h2>\n<p>C\u00e2n b\u1eb1ng \u0111a m\u1eb7t ph\u1eb3ng b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p N+2 c\u0169ng g\u1eb7p nh\u1eefng kh\u00f3 kh\u0103n th\u1ef1c s\u1ef1:<\/p>\n<ul>\n<li><strong>\u0110\u1ed9 ph\u1ee9c t\u1ea1p t\u0103ng l\u00ean:<\/strong> s\u1ed1 l\u1ea7n ch\u1ea1y th\u1eed t\u0103ng tuy\u1ebfn t\u00ednh v\u1edbi c\u00e1c m\u1eb7t ph\u1eb3ng. M\u1ed9t c\u00e2n b\u1eb1ng s\u00e1u m\u1eb7t ph\u1eb3ng c\u1ea7n t\u00e1m l\u1ea7n ch\u1ea1y, l\u00e0m t\u0103ng \u0111\u00e1ng k\u1ec3 th\u1eddi gian, chi ph\u00ed v\u00e0 m\u00e0i m\u00f2n m\u00e1y.<\/li>\n<li><strong>Y\u00eau c\u1ea7u \u0111\u1ed9 ch\u00ednh x\u00e1c \u0111o l\u01b0\u1eddng:<\/strong> Vi\u1ec7c gi\u1ea3i c\u00e1c h\u1ec7 th\u1ed1ng ma tr\u1eadn l\u1edbn l\u00e0m t\u0103ng t\u00e1c \u0111\u1ed9ng c\u1ee7a sai s\u1ed1 \u0111o l\u01b0\u1eddng. Thi\u1ebft b\u1ecb \u0111o l\u01b0\u1eddng ch\u1ea5t l\u01b0\u1ee3ng cao v\u00e0 k\u1ef9 thu\u1eadt c\u1ea9n th\u1eadn l\u00e0 \u0111i\u1ec1u c\u1ea7n thi\u1ebft.<\/li>\n<li><strong>\u1ed4n \u0111\u1ecbnh s\u1ed1:<\/strong> \u0111\u1ea3o ngh\u1ecbch ma tr\u1eadn c\u00f3 th\u1ec3 tr\u1edf n\u00ean kh\u00f4ng \u1ed5n \u0111\u1ecbnh khi c\u00e1c m\u1eb7t ph\u1eb3ng hi\u1ec7u ch\u1ec9nh qu\u00e1 g\u1ea7n nhau, khi c\u00e1c v\u1ecb tr\u00ed \u0111o \u0111\u01b0\u1ee3c ch\u1ecdn kh\u00f4ng th\u1ec3 n\u1eafm b\u1eaft ph\u1ea3n \u1ee9ng c\u1ee7a rotor, ho\u1eb7c khi c\u00e1c kh\u1ed1i l\u01b0\u1ee3ng th\u1eed ch\u1ec9 t\u1ea1o ra nh\u1eefng thay \u0111\u1ed5i vibration nh\u1ecf.<\/li>\n<li><strong>Th\u1eddi gian v\u00e0 chi ph\u00ed:<\/strong> m\u1ed7i m\u1eb7t ph\u1eb3ng b\u1ed5 sung th\u00eam m\u1ed9t l\u1ea7n ch\u1ea1y, k\u00e9o d\u00e0i th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng v\u00e0 lao \u0111\u1ed9ng; \u0111\u1ed1i v\u1edbi thi\u1ebft b\u1ecb quan tr\u1ecdng, \u0111i\u1ec1u n\u00e0y ph\u1ea3i \u0111\u01b0\u1ee3c c\u00e2n nh\u1eafc so v\u1edbi m\u1ee9c t\u0103ng ch\u1ea5t l\u01b0\u1ee3ng c\u00e2n b\u1eb1ng.<\/li>\n<li><strong>Y\u00eau c\u1ea7u ph\u1ea7n m\u1ec1m n\u00e2ng cao:<\/strong> gi\u1ea3i c\u00e1c h\u1ec7 th\u1ed1ng N\u00d7N ph\u01b0\u01a1ng tr\u00ecnh vect\u01a1 ph\u1ee9c t\u1ea1p v\u01b0\u1ee3t xa kh\u1ea3 n\u0103ng t\u00ednh to\u00e1n th\u1ee7 c\u00f4ng, v\u00ec v\u1eady ph\u1ea7n m\u1ec1m c\u00e2n b\u1eb1ng \u0111a m\u1eb7t ph\u1eb3ng chuy\u00ean d\u1ee5ng l\u00e0 b\u1eaft bu\u1ed9c.<\/li>\n<\/ul>\n<h2>7. Khi n\u00e0o s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p N+2<\/h2>\n<p>Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y ph\u00f9 h\u1ee3p khi:<\/p>\n<ul>\n<li><strong>Rotor th\u1ef1c s\u1ef1 linh ho\u1ea1t:<\/strong> n\u00f3 ho\u1ea1t \u0111\u1ed9ng tr\u00ean t\u1ea7n s\u1ed1 c\u1ed9ng h\u01b0\u1edfng th\u1ee9 nh\u1ea5t \u2014 v\u00e0 c\u00f3 th\u1ec3 l\u00e0 th\u1ee9 hai ho\u1eb7c th\u1ee9 ba \u2014 <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/critical-speed\/\">t\u1ed1c \u0111\u1ed9 t\u1edbi h\u1ea1n<\/a>.<\/li>\n<li><strong>Rotor d\u00e0i v\u00e0 m\u1ecfng:<\/strong> t\u1ef7 l\u1ec7 chi\u1ec1u d\u00e0i tr\u00ean \u0111\u01b0\u1eddng k\u00ednh l\u1edbn c\u00f3 ngh\u0129a l\u00e0 u\u1ed1n tr\u1ee5c \u0111\u00e1ng k\u1ec3 trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng.<\/li>\n<li><strong>C\u00e2n b\u1eb1ng hai m\u1eb7t ph\u1eb3ng \u0111\u00e3 t\u1ecf ra kh\u00f4ng \u0111\u1ee7:<\/strong> tr\u01b0\u1edbc \u0111\u00f3 <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/two-plane-balancing\/\">hai m\u1eb7t ph\u1eb3ng<\/a> nh\u1eefng n\u1ed7 l\u1ef1c kh\u00f4ng \u0111\u1ea1t \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c.<\/li>\n<li><strong>Ph\u1ea3i v\u01b0\u1ee3t qua nhi\u1ec1u t\u1ea7n s\u1ed1 c\u1ed9ng h\u01b0\u1edfng<\/strong> trong qu\u00e1 tr\u00ecnh ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng.<\/li>\n<li><strong>Thi\u1ebft b\u1ecb c\u00f3 gi\u00e1 tr\u1ecb cao:<\/strong> c\u00e1c tuabin t\u1edbi h\u1ea1n, m\u00e1y n\u00e9n ho\u1eb7c m\u00e1y ph\u00e1t \u0111i\u1ec7n n\u01a1i c\u00e2n b\u1eb1ng to\u00e0n di\u1ec7n \u0111\u01b0\u1ee3c ch\u1ee9ng minh l\u00e0 c\u1ea7n thi\u1ebft.<\/li>\n<li><strong>Rung \u0111\u1ed9ng c\u00f3 m\u1ee9c \u0111\u1ed9 nghi\u00eam tr\u1ecdng \u1edf c\u00e1c v\u1ecb tr\u00ed trung gian,<\/strong> gi\u1eefa c\u00e1c \u1ed5 \u0111\u1ee1 \u0111\u1ea7u cu\u1ed1i, b\u00e1o hi\u1ec7u m\u1ea5t c\u00e2n b\u1eb1ng \u1edf gi\u1eefa tr\u1ee5c m\u00e0 vi\u1ec7c hi\u1ec7u ch\u1ec9nh \u1edf m\u1eb7t ph\u1eb3ng \u0111\u1ea7u cu\u1ed1i kh\u00f4ng th\u1ec3 ti\u1ebfp c\u1eadn \u0111\u01b0\u1ee3c.<\/li>\n<\/ul>\n<h2>8. Ph\u01b0\u01a1ng ph\u00e1p thay th\u1ebf: C\u00e2n b\u1eb1ng Modal<\/h2>\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c rotor d\u1ebbo nh\u1ea5t, <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/modal-balancing\/\">c\u00e2n b\u1eb1ng ph\u01b0\u01a1ng th\u1ee9c<\/a> c\u00f3 th\u1ec3 v\u01b0\u1ee3t tr\u1ed9i h\u01a1n ph\u01b0\u01a1ng ph\u00e1p N+2 th\u00f4ng th\u01b0\u1eddng. Thay v\u00ec gi\u1ea3m thi\u1ec3u rung \u0111\u1ed9ng \u1edf c\u00e1c t\u1ed1c \u0111\u1ed9 c\u1ee5 th\u1ec3, c\u00e2n b\u1eb1ng modal nh\u1eafm v\u00e0o c\u00e1c ch\u1ebf \u0111\u1ed9 rung \u0111\u1ed9ng c\u1ee5 th\u1ec3 t\u1eebng c\u00e1i m\u1ed9t, khai th\u00e1c <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/mode-shape\/\">h\u00ecnh d\u1ea1ng ch\u1ebf \u0111\u1ed9<\/a> \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 v\u1edbi \u00edt l\u1ea7n th\u1eed ch\u1ea1y h\u01a1n. S\u1ef1 \u0111\u00e1nh \u0111\u1ed5i l\u00e0 n\u00f3 \u0111\u00f2i h\u1ecfi s\u1ef1 hi\u1ec3u bi\u1ebft s\u00e2u h\u01a1n n\u1eefa v\u1ec1 <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/rotor-dynamics\/\">\u0111\u1ed9ng l\u1ef1c h\u1ecdc r\u00f4to<\/a> v\u00e0 ph\u00e2n t\u00edch tinh vi h\u01a1n. Trong th\u1ef1c t\u1ebf, hai tri\u1ebft l\u00fd n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c k\u1ebft h\u1ee3p \u2014 th\u00f4ng tin chi ti\u1ebft v\u1ec1 modal h\u01b0\u1edbng d\u1eabn v\u1ecb tr\u00ed c\u00e1c m\u1eb7t ph\u1eb3ng, v\u00e0 gi\u1ea3i ph\u00e1p h\u1ec7 s\u1ed1 \u1ea3nh h\u01b0\u1edfng tinh ch\u1ec9nh kh\u1ed1i l\u01b0\u1ee3ng.<\/p>\n<h2>9. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p hay nh\u1ea5t \u0111\u1ec3 th\u00e0nh c\u00f4ng<\/h2>\n<h3>L\u1eadp k\u1ebf ho\u1ea1ch<\/h3>\n<ul>\n<li>Ch\u1ecdn c\u1ea9n th\u1eadn c\u00e1c v\u1ecb tr\u00ed m\u1eb7t ph\u1eb3ng hi\u1ec7u ch\u1ec9nh N \u2014 c\u00e1ch xa nhau, d\u1ec5 ti\u1ebfp c\u1eadn, v\u00e0 l\u00fd t\u01b0\u1edfng nh\u1ea5t l\u00e0 ph\u00f9 h\u1ee3p v\u1edbi h\u00ecnh d\u1ea1ng ch\u1ebf \u0111\u1ed9 c\u1ee7a rotor <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/nodal-point\/\">n\u00fat b\u1ee5ng<\/a>, v\u00ec m\u1ed9t tr\u1ecdng l\u01b0\u1ee3ng \u0111\u1eb7t \u1edf m\u1ed9t n\u00fat c\u00f3 \u00edt t\u00e1c \u0111\u1ed9ng \u0111\u1ebfn ch\u1ebf \u0111\u1ed9 \u0111\u00f3.<\/li>\n<li>Ch\u1ecdn M \u2265 N v\u1ecb tr\u00ed \u0111o l\u01b0\u1eddng \u0111\u1ea7y \u0111\u1ee7 \u0111\u1ec3 n\u1eafm b\u1eaft h\u00e0nh vi rung \u0111\u1ed9ng c\u1ee7a rotor.<\/li>\n<li>L\u00ean k\u1ebf ho\u1ea1ch cho th\u1eddi gian \u1ed5n \u0111\u1ecbnh nhi\u1ec7t \u0111\u1ed9 gi\u1eefa c\u00e1c l\u1ea7n ch\u1ea1y.<\/li>\n<li>Chu\u1ea9n b\u1ecb tr\u01b0\u1edbc tr\u1ecdng l\u01b0\u1ee3ng th\u1eed nghi\u1ec7m v\u00e0 ph\u1ea7n c\u1ee9ng l\u1eafp \u0111\u1eb7t<\/li>\n<\/ul>\n<h3>Th\u1ef1c hi\u1ec7n<\/h3>\n<ul>\n<li>Duy tr\u00ec c\u00e1c \u0111i\u1ec1u ki\u1ec7n ho\u1ea1t \u0111\u1ed9ng \u2014 t\u1ed1c \u0111\u1ed9, nhi\u1ec7t \u0111\u1ed9, t\u1ea3i \u2014 tuy\u1ec7t \u0111\u1ed1i nh\u1ea5t qu\u00e1n tr\u00ean t\u1ea5t c\u1ea3 c\u00e1c ch\u1ea1y N+2.<\/li>\n<li>S\u1eed d\u1ee5ng c\u00e1c tr\u1ecdng l\u01b0\u1ee3ng th\u1eed \u0111\u1ee7 l\u1edbn \u0111\u1ec3 t\u1ea1o ra ph\u1ea3n \u1ee9ng r\u00f5 r\u00e0ng, c\u00f3 th\u1ec3 \u0111o l\u01b0\u1eddng \u0111\u01b0\u1ee3c, th\u01b0\u1eddng l\u00e0 thay \u0111\u1ed5i 25\u201350% trong rung \u0111\u1ed9ng.<\/li>\n<li>Th\u1ef1c hi\u1ec7n nhi\u1ec1u ph\u00e9p \u0111o tr\u00ean m\u1ed7i l\u1ea7n ch\u1ea1y v\u00e0 l\u1ea5y trung b\u00ecnh ch\u00fang \u0111\u1ec3 lo\u1ea1i b\u1ecf nhi\u1ec5u.<\/li>\n<li>Ghi l\u1ea1i kh\u1ed1i l\u01b0\u1ee3ng, g\u00f3c v\u00e0 b\u00e1n k\u00ednh c\u1ee7a m\u1ed7i tr\u1ecdng l\u01b0\u1ee3ng th\u1eed.<\/li>\n<li>X\u00e1c minh ch\u1ea5t l\u01b0\u1ee3ng \u0111o l\u01b0\u1eddng pha, v\u00ec c\u00e1c l\u1ed7i pha \u0111\u01b0\u1ee3c ph\u00f3ng \u0111\u1ea1i trong c\u00e1c gi\u1ea3i ph\u00e1p ma tr\u1eadn l\u1edbn.<\/li>\n<\/ul>\n<h3>Ph\u00e2n t\u00edch<\/h3>\n<ul>\n<li>Xem l\u1ea1i ma tr\u1eadn h\u1ec7 s\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ec3 t\u00ecm ra c\u00e1c b\u1ea5t th\u01b0\u1eddng ho\u1eb7c c\u00e1c m\u00f4 h\u00ecnh kh\u00f4ng mong mu\u1ed1n<\/li>\n<li>Ki\u1ec3m tra s\u1ed1 \u0111i\u1ec1u ki\u1ec7n ma tr\u1eadn \u2014 c\u00e1c gi\u00e1 tr\u1ecb cao c\u1ea3nh b\u00e1o v\u1ec1 s\u1ef1 kh\u00f4ng \u1ed5n \u0111\u1ecbnh s\u1ed1.<\/li>\n<li>X\u00e1c nh\u1eadn r\u1eb1ng c\u00e1c hi\u1ec7u ch\u1ec9nh \u0111\u01b0\u1ee3c t\u00ednh to\u00e1n l\u00e0 h\u1ee3p l\u00fd v\u1ec1 m\u1eb7t v\u1eadt l\u00fd, kh\u00f4ng qu\u00e1 l\u1edbn v\u00e0 c\u0169ng kh\u00f4ng nh\u1ecf kh\u00f4ng \u0111\u00e1ng k\u1ec3.<\/li>\n<li>Xem x\u00e9t m\u00f4 ph\u1ecfng k\u1ebft qu\u1ea3 cu\u1ed1i c\u00f9ng d\u1ef1 ki\u1ebfn tr\u01b0\u1edbc khi th\u1ef1c hi\u1ec7n c\u00e1c hi\u1ec7u ch\u1ec9nh.<\/li>\n<\/ul>\n<h2>10. \u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf tr\u00ean th\u1ef1c \u0111\u1ecba v\u00e0 Balanset-1A<\/h2>\n<p>C\u00e2n b\u1eb1ng rotor m\u1ec1m linh ho\u1ea1t tr\u00ean c\u00e1c m\u00e1y m\u00f3c quan tr\u1ecdng th\u01b0\u1eddng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n t\u1ea1i ch\u1ed7 \u1edf t\u1ed1c \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng, n\u01a1i rotor th\u1ef1c s\u1ef1 u\u1ed1n cong, thay v\u00ec tr\u00ean m\u00e1y c\u00e2n b\u1eb1ng t\u1ed1c \u0111\u1ed9 th\u1ea5p. M\u1ed9t thi\u1ebft b\u1ecb ph\u00e2n t\u00edch hai k\u00eanh di \u0111\u1ed9ng nh\u01b0 <a href=\"https:\/\/vibromera.eu\/vi\/san-pham\/balanset-1\/\">Balanset-1A<\/a> cung c\u1ea5p c\u00e1c kh\u1ed1i x\u00e2y d\u1ef1ng m\u00e0 ph\u01b0\u01a1ng ph\u00e1p N+2 c\u1ea7n: ph\u00e9p \u0111o bi\u00ean \u0111\u1ed9 v\u00e0 pha \u0111\u1ed3ng b\u1ed9 1\u00d7 \u1edf m\u1ed7i \u1ed5 \u0111\u1ee1, t\u00ednh to\u00e1n t\u1ef1 \u0111\u1ed9ng c\u00e1c h\u1ec7 s\u1ed1 \u1ea3nh h\u01b0\u1edfng t\u1eeb c\u00e1c l\u1ea7n ch\u1ea1y tr\u1ecdng l\u01b0\u1ee3ng th\u1eed, v\u00e0 x\u00e1c minh <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/residual-unbalance\/\">m\u1ea5t c\u00e2n b\u1eb1ng c\u00f2n l\u1ea1i<\/a> sau khi c\u00e1c hi\u1ec7u ch\u1ec9nh \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t. \u0110\u1ed1i v\u1edbi c\u00e1c c\u00f4ng vi\u1ec7c hai m\u1eb7t ph\u1eb3ng, thi\u1ebft b\u1ecb s\u1ebd ch\u1ea1y gi\u1ea3i ph\u00e1p h\u1ec7 s\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ea7y \u0111\u1ee7 tr\u1ef1c ti\u1ebfp; \u0111\u1ed1i v\u1edbi nhi\u1ec1u m\u1eb7t ph\u1eb3ng h\u01a1n, c\u00e1c ph\u00e9p \u0111o m\u1ed9t v\u00e0 hai m\u1eb7t ph\u1eb3ng c\u1ee7a n\u00f3 ph\u1ee5c v\u1ee5 nh\u01b0 d\u1eef li\u1ec7u tr\u00ean t\u1eebng m\u1eb7t ph\u1eb3ng \u0111\u01b0\u1ee3c k\u1ef7 lu\u1eadt m\u00e0 b\u1ed9 gi\u1ea3i ph\u00e1p \u0111a m\u1eb7t ph\u1eb3ng k\u1ebft h\u1ee3p. V\u00ec c\u00f4ng vi\u1ec7c di\u1ec5n ra trong c\u00e1c \u1ed5 \u0111\u1ee1 c\u1ee7a ch\u00ednh m\u00e1y m\u00f3c, ph\u1ea3n \u1ee9ng b\u1eaft \u0111\u01b0\u1ee3c bao g\u1ed3m \u0111\u1ed9 c\u1ee9ng h\u1ed7 tr\u1ee3 th\u1ef1c t\u1ebf v\u00e0 tr\u1ea1ng th\u00e1i nhi\u1ec7t m\u00e0 rotor ch\u1ea1y.<\/p>\n<h2>11. T\u00edch h\u1ee3p v\u1edbi c\u00e1c k\u1ef9 thu\u1eadt kh\u00e1c<\/h2>\n<p>Ph\u01b0\u01a1ng ph\u00e1p N+2 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c k\u1ebft h\u1ee3p v\u1edbi c\u00e1c c\u00e1ch ti\u1ebfp c\u1eadn b\u1ed5 sung:<\/p>\n<ul>\n<li><strong>C\u00e2n b\u1eb1ng theo t\u1eebng b\u01b0\u1edbc t\u1ed1c \u0111\u1ed9:<\/strong> l\u1eb7p l\u1ea1i c\u00e1c ph\u00e9p \u0111o N+2 \u1edf m\u1ed9t s\u1ed1 t\u1ed1c \u0111\u1ed9 \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a c\u00e2n b\u1eb1ng tr\u00ean to\u00e0n b\u1ed9 ph\u1ea1m vi ho\u1ea1t \u0111\u1ed9ng, kh\u00f4ng ch\u1ec9 \u1edf m\u1ed9t t\u1ed1c \u0111\u1ed9.<\/li>\n<li><strong>K\u1ebft h\u1ee3p theo ph\u01b0\u01a1ng th\u1ee9c modal\u2013th\u00f4ng th\u01b0\u1eddng:<\/strong> s\u1eed d\u1ee5ng <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/modal-analysis\/\">ph\u00e2n t\u00edch modal<\/a> \u0111\u1ec3 th\u00f4ng b\u00e1o cho vi\u1ec7c l\u1ef1a ch\u1ecdn m\u1eb7t ph\u1eb3ng hi\u1ec7u ch\u1ec9nh, sau \u0111\u00f3 \u00e1p d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p N+2 \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc c\u1ee7a tr\u1ecdng l\u01b0\u1ee3ng.<\/li>\n<li><strong>Tinh ch\u1ec9nh l\u1eb7p l\u1ea1i:<\/strong> th\u1ef1c hi\u1ec7n c\u00e2n b\u1eb1ng N+2 \u0111\u1ea7y \u0111\u1ee7, sau \u0111\u00f3 t\u00e1i s\u1eed d\u1ee5ng m\u1ed9t t\u1eadp h\u1ee3p r\u00fat g\u1ecdn c\u00e1c h\u1ec7 s\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ec3 c\u00e2n b\u1eb1ng nhanh <a href=\"https:\/\/vibromera.eu\/vi\/glossary\/trim-balance\/\">c\u00e2n b\u1eb1ng c\u1eaft t\u1ec9a<\/a> khi c\u00e1c \u0111i\u1ec1u ki\u1ec7n thay \u0111\u1ed5i trong d\u1ecbch v\u1ee5.<\/li>\n<\/ul>\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 ph\u01b0\u01a1ng ph\u00e1p N+2, m\u1ed9t k\u1ef9 thu\u1eadt c\u00e2n b\u1eb1ng ti\u00ean ti\u1ebfn d\u00e0nh cho r\u00f4to linh ho\u1ea1t c\u1ea7n N m\u1eb7t ph\u1eb3ng hi\u1ec7u ch\u1ec9nh c\u1ed9ng th\u00eam hai l\u1ea7n ch\u1ea1y th\u1eed \u0111\u1ec3 hi\u1ec7u ch\u1ec9nh \u0111a m\u1eb7t ph\u1eb3ng ch\u00ednh x\u00e1c.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,110],"tags":[],"class_list":["post-171","glossary","type-glossary","status-publish","hentry","category-glossary","category-vibration-diagnostics"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/glossary\/171","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":2,"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/glossary\/171\/revisions"}],"predecessor-version":[{"id":102187,"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/glossary\/171\/revisions\/102187"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/media?parent=171"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/categories?post=171"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/vi\/wp-json\/wp\/v2\/tags?post=171"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}