{"id":163,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/modal-analysis\/"},"modified":"2026-05-23T22:37:13","modified_gmt":"2026-05-23T22:37:13","slug":"modal-analysis","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/ms\/glossary\/modal-analysis\/","title":{"rendered":"Apakah Analisis Modal? (EMA, OMA)"},"content":{"rendered":"<h1>Memahami Analisis Modal<\/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\/ms\/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\/ms\/product\/balanset-1\/\" title=\"Pengimbang mudah alih &amp; Penganalisis getaran Balanset-1A\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Balanset-1A kit lengkap penyeimbang mudah alih dan penganalisis getaran\" 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\/ms\/product-category\/devices\/\" rel=\"tag\">Peranti<\/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\/ms\/product\/balanset-1\/\" title=\"Pengimbang mudah alih &amp; Penganalisis getaran Balanset-1A\">Pengimbang mudah alih &amp; Penganalisis getaran 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> + VAT (jika berkenaan)<\/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=\"\/ms\/wp-json\/wp\/v2\/glossary\/163?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=\"Add to cart\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Add to cart\" 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=\"\/ms\/wp-json\/wp\/v2\/glossary\/163?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=\"Add to cart: \u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d has been added to your cart\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Add to cart<\/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\/ms\/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\/ms\/product\/vibration-sensor\/\" title=\"Penderia getaran\">\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=\"Pandangan dekat sensor getaran 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\/ms\/product-category\/parts\/\" rel=\"tag\">bahagian<\/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\/ms\/product\/vibration-sensor\/\" title=\"Penderia getaran\">Penderia getaran<\/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> + VAT (jika berkenaan)<\/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=\"\/ms\/wp-json\/wp\/v2\/glossary\/163?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=\"Add to cart\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Add to cart\" 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=\"\/ms\/wp-json\/wp\/v2\/glossary\/163?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=\"Add to cart: \u201cVibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u201cVibration sensor\u201d has been added to your cart\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Add to cart<\/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\/ms\/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\/ms\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Penderia Optik (Takometer 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=\"Penderia Optik (Takometer 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\/ms\/product-category\/parts\/\" rel=\"tag\">bahagian<\/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\/ms\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Penderia Optik (Takometer Laser)\">Penderia Optik (Takometer 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> + VAT (jika berkenaan)<\/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=\"\/ms\/wp-json\/wp\/v2\/glossary\/163?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=\"Add to cart\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Add to cart\" 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=\"\/ms\/wp-json\/wp\/v2\/glossary\/163?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=\"Add to cart: \u201cOptical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u201cOptical Sensor (Laser Tachometer)\u201d has been added to your cart\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Add to cart<\/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\/ms\/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\/ms\/product\/balanset-4\/\" title=\"Balanset-4\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Kit pengimbangan rotor Vibromera: kes pembawa, perapi isyarat berbilang saluran, penganalisis genggam, tapak magnet, sensor getaran dan kabel bergelung.\" 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\/ms\/product-category\/devices\/\" rel=\"tag\">Peranti<\/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\/ms\/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> + VAT (jika berkenaan)<\/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=\"\/ms\/wp-json\/wp\/v2\/glossary\/163?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=\"Add to cart\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Add to cart\" 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=\"\/ms\/wp-json\/wp\/v2\/glossary\/163?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=\"Add to cart: \u201cBalanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u201cBalanset-4\u201d has been added to your cart\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Add to cart<\/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\/ms\/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\/ms\/product\/magnet-stand\/\" title=\"Magnetic Stand 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=\"Pangkalan magnet.\" 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\/ms\/product-category\/parts\/\" rel=\"tag\">bahagian<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 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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>Analisis modal<\/strong> ialah proses mengkaji dan mencirikan sifat dinamik wujud struktur atau sistem mekanik. Sifat-sifat tersebut \u2014 apa yang <a href=\"https:\/\/vibromera.eu\/ms\/glossary\/natural-frequency\/\">frekuensi semula jadi<\/a>, miliknya <a href=\"https:\/\/vibromera.eu\/ms\/glossary\/damping\/\">redaman<\/a> nisbah, dan <a href=\"https:\/\/vibromera.eu\/ms\/glossary\/mode-shape\/\">bentuk mod<\/a> &mdash; bersama-sama merupakan &#8220;parameter modal&#8221; sistem. Bersama-sama mereka menghuraikan cara unik struktur akan cenderung bergetar secara semulajadi apabila ia terganggu. Pengetahuan ini adalah asas: ia membenarkan jurutera merancang struktur yang bertahan dari daya dinamik, dan ia membenarkan mereka mendiagnosis dan menyembuh masalah getaran yang degil dengan mendedahkan tepat frekuensi semulajadi mana yang sedang dipicu. Di mana <a href=\"https:\/\/vibromera.eu\/ms\/glossary\/spectrum\/\">spektrum getaran<\/a> memberitahu anda frekuensi mesin yang sedang beroperasi menghasilkan, analisis modal memberitahu anda frekuensi mana struktur bersedia untuk diperkuat &mdash; dan perbezaan itu adalah kunci untuk memahami <a href=\"https:\/\/vibromera.eu\/ms\/glossary\/resonance\/\">resonans<\/a>.<\/p>\n<h2>1. Matlamat: Mengenal pasti Parameter Modal<\/h2>\n<p>Setiap struktur mempunyai set unik parameter modal yang ditetapkan oleh susunannya yang fizikal &mdash; jisimnya, ketegarannya, dan lepahannya. Tujuan analisis modal adalah untuk menentukan parameter-parameter tersebut:<\/p>\n<ul>\n<li><strong>Frekuensi asli (frekuensi resonan):<\/strong> frekuensi khusus yang mana struktur bergetar dengan amplitud terbesar apabila teruja. Setiap struktur sebenar mempunyai banyak daripadanya, naik dalam siri.<\/li>\n<li><strong>Nisbah redaman:<\/strong> ukuran berapa pantas getaran pada setiap mod melampaui &mdash; dengan kata lain, berapa banyak tenaga struktur menggunapakai. Lepashan ringan bermakna puncak resonansi tinggi dan sempit; lepashan berat bermakna puncak rendah dan luas.<\/li>\n<li><strong>Bentuk mod:<\/strong> corak ubah bentuk yang tersendiri yang diambil oleh struktur apabila ia bergetar pada salah satu frekuensi alaminya. Setiap frekuensi alami mempunyai bentuk mod yang sesuai \u2014 satu mod lentur pertama, satu mod kilasan, dan seterusnya.<\/li>\n<\/ul>\n<p>Dengan ketiga-tiga kuantiti ini dalam tangan, seorang jurutera boleh meramalkan bagaimana struktur akan bertindak balas kepada hampir mana-mana beban dinamik yang dihadapinya dalam operasi, dan boleh menjangkakan masalah sebelum ia dibina ke dalam perkakasan.<\/p>\n<h3>Mengapa ketiga-tiga parameter bekerja bersama<\/h3>\n<p>Tiada satu parameter pun yang mencukupi dengan sendirinya. Frekuensi alami memberitahu anda <em>di mana<\/em> resonans terletak pada paksi frekuensi; nisbah redaman memberitahu anda <em>betapa teruknya<\/em> ia akan berlaku jika dirangsang; dan bentuk mod memberitahu anda <em>di mana pada struktur<\/em> gerakan adalah terbesar \u2014 dan oleh itu di mana sensor akan melihatnya, di mana pembetulan akan menjadi paling berkesan, dan di mana <a href=\"https:\/\/vibromera.eu\/ms\/glossary\/nodal-point\/\">titik nod<\/a> gerakan hampir sifar duduk. Inilah sebabnya mengapa parameter selalu dibincangkan sebagai satu set.<\/p>\n<h2>2. Jenis-jenis Analisis Modal<\/h2>\n<p>Terdapat tiga jalan utama kepada parameter modal struktur: dua eksperimen dan satu semata-mata pengiraan.<\/p>\n<h3>1. Analisis Modal Eksperimen (EMA)<\/h3>\n<p>EMA \u2014 berkait rapat dengan <a href=\"https:\/\/vibromera.eu\/ms\/glossary\/bump-test\/\">ujian bump<\/a> \u2014 mengukur tindak balas struktur kepada daya input yang diketahui dan terkawal. Ia adalah kaedah piawai untuk menguji perkakasan sebenar. Alur kerja berjalan seperti berikut:<\/p>\n<ol>\n<li>Rangsang struktur dengan daya yang diukur, biasanya dari satu <strong>tukul hentaman beralat<\/strong> (tunjunya membawa sensor daya) atau dari satu <strong>penggoncang elektrodinamik<\/strong>. Rangsangan terkawal ini adalah intipati <a href=\"https:\/\/vibromera.eu\/ms\/glossary\/impact-testing\/\">pengujian impak<\/a>.<\/li>\n<li>Ukur tindak balas getaran di satu atau lebih lokasi dengan <a href=\"https:\/\/vibromera.eu\/ms\/glossary\/accelerometer\/\">akselerometer<\/a>.<\/li>\n<li>Kira <a href=\"https:\/\/vibromera.eu\/ms\/glossary\/frequency-response-function\/\">Fungsi Respons Kekerapan (FRF)<\/a> di setiap titik \u2014 nisbah getaran keluaran kepada daya masukan merentasi frekuensi.<\/li>\n<li>Gunakan perisian khusus untuk memadankan set FRF dan ekstrak frekuensi alami, redaman, dan bentuk mod. Perisian kemudian boleh menganimasikan setiap bentuk mod supaya penganalisis secara literal melihat bagaimana struktur lentur pada setiap frekuensi alami.<\/li>\n<\/ol>\n<p>Kerana kedua-dua daya masukan dan tindak balas keluaran diukur, EMA menghasilkan parameter modal berskala penuh \u2014 perihalan eksperimen paling lengkap yang tersedia.<\/p>\n<h3>2. Analisis Modal Operasi (OMA)<\/h3>\n<p>OMA digunakan ketika menerapkan gaya terkontrol tidak praktis atau mustahil, atau ketika perilaku di bawah kondisi operasi nyata adalah yang penting. Di sini hanya respons keluaran yang diukur \u2014 sekali lagi dengan akseleraometer \u2014 sementara struktur dirangsang oleh gaya operasional normal atau gaya sekelilingnya: angin di atas jembatan, masukan jalan ke bodi mobil, atau gaya kerja di dalam mesin yang sedang berjalan. Algoritme canggih kemudian memulihkan parameter modal dari data respons saja. Ini adalah pendekatan yang lebih kompleks dan bentuk mode keluar tanpa skala, tetapi untuk struktur besar yang sedang beroperasi sering kali ini adalah satu-satunya pendekatan yang layak. OMA secara konseptual adalah kerabat dekat dari <a href=\"https:\/\/vibromera.eu\/ms\/glossary\/ods-analysis\/\">analisis bentuk lenturan operasi (ODS)<\/a>, meskipun ODS menggambarkan cara struktur benar-benar bergerak pada kondisi operasi tertentu daripada menggali mode dasarnya.<\/p>\n<h3>3. Analisis Modal Analisis (FEA)<\/h3>\n<p>Ini adalah rute murni teoritis, dibangun atas model komputer \u2014 paling umum <strong>Analisis Elemen Terhingga (FEA)<\/strong>. Insinyur membuat model virtual struktur dan perangkat lunak memprediksi parameter modalnya sebelum logam dipotong. EMA sering dilakukan kemudian untuk memvalidasi dan menyempurnakan model FEA, menutup loop antara prediksi dan pengukuran sehingga studi &#8220;bagaimana jika&#8221; mendatang pada model dapat dipercayai.<\/p>\n<h2>3. Aplikasi Analisis Modal<\/h2>\n<ul>\n<li><strong>Penyelesaian masalah resonan:<\/strong> aplikasi yang paling umum sejauh ini. Ketika mesin bergetar secara berlebihan, analisis modal mengungkapkan apakah frekuensi alami struktural didorong oleh gaya operasi seperti kecepatan berjalan atau <a href=\"https:\/\/vibromera.eu\/ms\/glossary\/blade-passing-frequency\/\">kekerapan hantaran bilah<\/a>.<\/li>\n<li><strong>Pengesahan reka bentuk:<\/strong> insinyur memastikan bahwa frekuensi alami produk baru tetap terpisah dari frekuensi eksitasi yang diketahui \u2014 RPM mesin, bukaan sudu, jerat gigi \u2014 sehingga resonansi tidak pernah dirancang.<\/li>\n<li><strong>Ubahan struktur:<\/strong> setelah resonansi diidentifikasi, model modal mendukung studi &#8220;bagaimana jika&#8221;, menjawab pertanyaan seperti &#8220;di mana seharusnya penguat kaku diletakkan untuk mendorong frekuensi alami ini lebih tinggi?&#8221; sebelum ada perubahan dilakukan.<\/li>\n<li><strong>Pemantauan kesihatan struktur:<\/strong> pergeseran parameter modal seiring waktu dapat menandai kerusakan yang berkembang \u2014 a <a href=\"https:\/\/vibromera.eu\/ms\/glossary\/shaft-crack\/\">retak aci<\/a>, misalnya, menurunkan kekakuan dan karena itu menurunkan frekuensi alami.<\/li>\n<\/ul>\n<h2>4. Analisis Modal dan Masalah Resonansi<\/h2>\n<p>Hasil praktis dari semua ini ialah keupayaan untuk memisahkan dua perkara yang kelihatan sama pada spektrum tetapi memerlukan ubat-ubatan bertentangan: masalah memaksa dan masalah resonans. Jika getaran tinggi berasal daripada daya pengujaan yang besar \u2014 katakan, ketidakseimbangan sisa <a href=\"https:\/\/vibromera.eu\/ms\/glossary\/unbalance\/\">ketidakseimbangan<\/a> \u2014 penyelesaiannya ialah mengurangkan daya itu. Jika ia datang dari struktur yang frekuensi semula jadinya berlaku bertepatan dengan frekuensi operasi, mengurangkan daya hampir tidak membantu; ubatnya ialah untuk memindahkan frekuensi semula jadi dengan mengubah jisim atau kekakuan, atau untuk menambah redaman. Analisis modal ialah alat yang memberitahu anda situasi mana yang anda berada. Keadaan seperti <a href=\"https:\/\/vibromera.eu\/ms\/glossary\/structural-resonance\/\">resonans struktur<\/a> and <a href=\"https:\/\/vibromera.eu\/ms\/glossary\/frame-resonance\/\">resonan rangka<\/a> didiagnosis dengan cara yang sama, dan pada mesin kelajuan berubah-ubah hasilnya sering memberi maklumat kepada <a href=\"https:\/\/vibromera.eu\/ms\/glossary\/campbell-diagram\/\">Rajah Campbell<\/a> yang memetakan tempat perintah pengujaan melintasi frekuensi semula jadi merentasi julat kelajuan.<\/p>\n<h2>5. Tempat Pengukuran Lapangan Sesuai<\/h2>\n<p>Ujian modal berbilang titik penuh ialah aktiviti khusus, tetapi jurutera kebolehpercayaan sering menemuinya dalam bentuk yang lebih padat di lantai kedai: ujian benjolan pantas untuk mencari frekuensi semula jadi yang disyaki sebelum berkomitmen untuk pekerjaan pengimbangan. Langkah itu penting kerana pengimbangan rotor yang struktur sokongannya dalam resonans hanya mengejar ekornya \u2014 tindak balas dikuasai oleh struktur, bukan oleh ketidakseimbangan. Instrumen dua saluran mudahalih seperti <a href=\"https:\/\/vibromera.eu\/ms\/product\/balanset-1\/\">Balanset-1A<\/a> memungkinkan jurutera menangkap getaran dalam galas mesin itu sendiri pada kelajuan operasi dan mengesahkan bahawa kelajuan larian duduk jelas daripada frekuensi semula jadi struktur, supaya <a href=\"https:\/\/vibromera.eu\/ms\/glossary\/field-balancing\/\">pengimbangan medan<\/a> benar-benar menangani sumber yang sebenarnya. Setelah struktur disingkirkan, instrumen yang sama mengukur amplitud dan fasa 1\u00d7 yang diperlukan untuk mengimbangi rotor dan mengesahkan hasilnya. Dengan cara ini disiplin luas analisis modal dan tugas fokus pengimbangan saling menguatkan satu sama lain: yang pertama memastikan anda menyelesaikan masalah yang betul, yang kedua menyelesaikannya.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/ms\/glossary\/\">\u2190 Kembali ke Indeks Utama<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Panduan untuk analisis modal, proses mengenal pasti frekuensi semula jadi, redaman dan bentuk mod struktur. Ketahui tentang Analisis Modal Eksperimen (EMA) dan Operasi (OMA).<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[114,109],"tags":[],"class_list":["post-163","glossary","type-glossary","status-publish","hentry","category-analysis","category-glossary"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/ms\/wp-json\/wp\/v2\/glossary\/163","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/ms\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/ms\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/ms\/wp-json\/wp\/v2\/glossary\/163\/revisions"}],"predecessor-version":[{"id":101290,"href":"https:\/\/vibromera.eu\/ms\/wp-json\/wp\/v2\/glossary\/163\/revisions\/101290"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/ms\/wp-json\/wp\/v2\/media?parent=163"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/ms\/wp-json\/wp\/v2\/categories?post=163"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/ms\/wp-json\/wp\/v2\/tags?post=163"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}