{"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\/tl\/glossary\/modal-analysis\/","title":{"rendered":"Ano ang Modal Analysis? (EMA, OMA)"},"content":{"rendered":"<h1>Pag-unawa sa Modal Analysis<\/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\/tl\/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\/tl\/product\/balanset-1\/\" title=\"Portable balancer at Vibration analyzer 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 full kit portable na balancer at vibration analyzer\" 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\/tl\/product-category\/devices\/\" rel=\"tag\">Devices<\/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\/tl\/product\/balanset-1\/\" title=\"Portable balancer at Vibration analyzer Balanset-1A\">Portable na balancer &#038; vibration analyzer na 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\">&euro;<\/span>1,975.00<\/span> + VAT (kung naaangkop)<\/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=\"\/tl\/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=\"\/tl\/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\/tl\/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\/tl\/product\/vibration-sensor\/\" title=\"Sensor ng vibraci\u00f3n\">\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=\"Balanset-1A vibration sensor close-up\" 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\/tl\/product-category\/parts\/\" rel=\"tag\">Parts<\/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\/tl\/product\/vibration-sensor\/\" title=\"Sensor ng vibraci\u00f3n\">Sensor ng vibraci\u00f3n<\/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\">&euro;<\/span>90.00<\/span> + VAT (kung naaangkop)<\/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=\"\/tl\/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=\"\/tl\/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\/tl\/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\/tl\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optical Sensor (Laser Tachometer)\">\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=\"Optical Sensor (Laser Tachometer)\" 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\/tl\/product-category\/parts\/\" rel=\"tag\">Parts<\/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\/tl\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optical Sensor (Laser Tachometer)\">Optical Sensor (Laser Tachometer)<\/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\">&euro;<\/span>124.00<\/span> + VAT (kung naaangkop)<\/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=\"\/tl\/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=\"\/tl\/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\/tl\/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\/tl\/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=\"Vibromera rotor balancing kit: carrying case, multi-channel signal conditioner, handheld analyzer, magnetic base, mga vibration sensor, at mga coiled cable.\" 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\/tl\/product-category\/devices\/\" rel=\"tag\">Devices<\/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\/tl\/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\">&euro;<\/span>6,803.00<\/span> + VAT (kung naaangkop)<\/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=\"\/tl\/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=\"\/tl\/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\/tl\/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\/tl\/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=\"Magnet base.\" 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\/tl\/product-category\/parts\/\" rel=\"tag\">Parts<\/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\" 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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>Modal analysis<\/strong> ay ang proseso ng pag-aaral at pagpapakilala sa likas na dynamic na katangian ng isang istruktura o mekanikal na sistema. Ang mga katangiang iyon \u2014 ang kanyang <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/natural-frequency\/\">natural frequencies<\/a>, its <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/damping\/\">damping<\/a> ratio, at ang kanyang <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/mode-shape\/\">mode shapes<\/a> \u2014 ay sama-samang tinatawag na &#8220;modal parameters&#8221; ng sistema. Sama-sama nilang inilalarawan ang natatanging mga paraan kung paano natural na mag-vibrate ang isang istruktura kapag ito ay nagambala. Ang kaalamang ito ay pundasyon: nagbibigay-daan ito sa mga inhinyero na magdisenyo ng mga istruktura na nakakatagal ng dynamic na puwersa, at nagbibigay-daan ito sa kanila na ma-diagnose at maiwasto ang mga paulit-ulit na problema sa vibration sa pamamagitan ng pagtukoy kung aling natural na frequency ang nagagalaw. Kung ang isang <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/spectrum\/\">spectrum ng vibrasyon<\/a> ay nagsasabi sa iyo kung anong mga frequency ang ginagawa ng isang tumatakbong makina, ang modal analysis ay nagsasabi sa iyo kung anong mga frequency ang predisposed na i-amplify ng istruktura \u2014 at ang pagkakaibang iyon ang susi sa pag-unawa sa <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/resonance\/\">resonance<\/a>.<\/p>\n<h2>1. Ang Layunin: Pagtukoy ng Mga Modal Parameter<\/h2>\n<p>Ang bawat istruktura ay may natatanging hanay ng mga modal parameter na tinutukoy ng pisikal nitong komposisyon \u2014 ang masa nito, ang stiffness nito, at ang damping nito. Ang layunin ng modal analysis ay matukoy ang mga parameter na iyon:<\/p>\n<ul>\n<li><strong>Mga natural na frequency (mga resonant frequency):<\/strong> ang mga tiyak na frequency kung saan nag-vi-vibrate ang istruktura nang may pinakamalaking amplitude kapag na-excite. Ang anumang tunay na istruktura ay may marami sa mga ito, pataas sa isang serye.<\/li>\n<li><strong>Mga ratio ng damping:<\/strong> isang sukatan kung gaano kabilis humupa ang vibration sa bawat mode \u2014 sa madaling salita, gaano karaming enerhiya ang nasisipsip ng istruktura. Ang magaang na damping ay nangangahulugang mataas at makitid na resonance peak; ang mabigat na damping ay nangangahulugang mababa at malawak.<\/li>\n<li><strong>Mode shapes:<\/strong> ang natatanging pattern ng depormasyon na inaangkop ng istruktura kapag nag-vi-vibrate ito sa isa sa mga natural na frequency nito. Ang bawat natural na frequency ay may sariling katumbas na mode shape \u2014 isang first bending mode, isang torsional mode, at iba pa.<\/li>\n<\/ul>\n<p>Sa pamamagitan ng tatlong katamtamang ito, maaaring hulaan ng isang inhinyero kung paano tutugon ang istraktura sa halos anumang dynamic na pagkarga na mararanasan nito sa serbisyo, at maaari niyang mahulaan ang problema bago pa ito itayo sa hardware.<\/p>\n<h3>Bakit magkasamang gumagana ang tatlong parameter<\/h3>\n<p>Walang isang parameter na sapat nang mag-isa. Sinasabi sa iyo ng natural frequency ang <em>where<\/em> ang isang resonance ay nasa frequency axis; sinasabi sa iyo ng damping ratio ang <em>how severe<\/em> magiging gaano ito kapag napalabas; at sinasabi sa iyo ng mode shape ang <em>saan sa istruktura<\/em> pinakmalaki ang galaw \u2014 at samakatuwid kung saan mararamdaman ito ng isang sensor, kung saan magiging pinaka-epektibo ang isang pagwawasto, at kung saan ang isang <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/nodal-point\/\">nodal point<\/a> ng halos-zero na galaw ay naroroon. Kaya naman palaging tinatalakay ang mga parameter bilang isang hanay.<\/p>\n<h2>2. Mga Uri ng Modal Analysis<\/h2>\n<p>Mayroong tatlong pangunahing landas patungo sa mga modal parameter ng isang istraktura: dalawang experimental at isa na purong computational.<\/p>\n<h3>1. Experimental Modal Analysis (EMA)<\/h3>\n<p>EMA \u2014 malapit na kamag-anak ng <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/bump-test\/\">bump test<\/a> \u2014 sinusukat ang tugon ng istraktura sa isang kilala at kontroladong input na puwersa. Ito ang pamantayang paraan para sa pagsubok ng tunay na hardware. Ang daloy ng trabaho ay nagpapatuloy tulad ng sumusunod:<\/p>\n<ol>\n<li>I-excite ang istraktura gamit ang isang nasukat na puwersa, karaniwang mula sa isang <strong>instrumented impact hammer<\/strong> (ang dulo nito ay may force sensor) o mula sa isang <strong>electrodynamic shaker<\/strong>. Ang kontroladong excitation na ito ang kakanyahan ng <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/impact-testing\/\">impact testing<\/a>.<\/li>\n<li>Sukatin ang tugon ng vibration sa isa o higit pang lokasyon gamit ang <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/accelerometer\/\">accelerometers<\/a>.<\/li>\n<li>Compute the <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/frequency-response-function\/\">Frequency Response Function (FRF)<\/a> sa bawat punto \u2014 ang ratio ng output na vibration sa input na puwersa sa buong frequency.<\/li>\n<li>Gumamit ng espesyalisadong software upang i-fit ang hanay ng mga FRF at i-extract ang mga natural frequency, damping, at mode shape. Maaaring i-animate ng software ang bawat mode shape upang literal na makita ng analyst kung paano nag-i-flex ang istraktura sa bawat natural frequency.<\/li>\n<\/ol>\n<p>Dahil sinusukat ang parehong input na puwersa at output na tugon, nagbibigay ang EMA ng ganap na na-scale na mga modal parameter \u2014 ang pinaka-kumpletong experimental na paglalarawan na available.<\/p>\n<h3>2. Operational Modal Analysis (OMA)<\/h3>\n<p>Ginagamit ang OMA kapag ang pag-apply ng kontroladong puwersa ay hindi praktikal o imposible, o kapag ang ugali sa ilalim ng tunay na mga kondisyon ng operasyon ang mahalaga. Dito ang output na tugon lamang ang sinusukat \u2014 muli sa pamamagitan ng mga accelerometer \u2014 habang ang istraktura ay ine-excite ng normal nitong mga operational o ambient na puwersa: hangin sa isang tulay, mga input ng kalsada sa isang katawan ng sasakyan, o ang mga gumaganang puwersa sa loob ng isang tumatakbong makina. Ang mga advanced na algorithm ay nagbabawi ng mga modal parameter mula sa response-only data. Ito ay isang mas kumplikadong diskarte at ang mga mode shape ay hindi na-scale, ngunit para sa malalaking in-service na istraktura ito ay kadalasang ang tanging posible. Ang OMA ay konsepto na malapit na kamag-anak ng <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/ods-analysis\/\">operating deflection shape (ODS) analysis<\/a>, bagaman inilalarawan ng ODS kung paano aktwal na gumagalaw ang isang istraktura sa isang partikular na kondisyon ng operasyon kaysa sa pag-extract ng mga underlying na mode nito.<\/p>\n<h3>3. Analytical Modal Analysis (FEA)<\/h3>\n<p>Ito ang purong theoretical na landas, itinayo sa isang modelo ng computer \u2014 kadalasan ay <strong>Finite Element Analysis (FEA)<\/strong>. Lumilikha ang mga inhinyero ng virtual na modelo ng istraktura at hinuhulaan ng software ang mga modal parameter nito bago pa putulin ang anumang metal. Kadalasang isinasagawa ang EMA pagkatapos upang ma-validate at mapabuti ang modelo ng FEA, sinasara ang loop sa pagitan ng hula at pagsukat upang ang mga hinaharap na pag-aaral ng &#8220;what-if&#8221; sa modelo ay mapagkakatiwalaan.<\/p>\n<h2>3. Mga Aplikasyon ng Modal Analysis<\/h2>\n<ul>\n<li><strong>Pagsasaayos ng mga problema sa resonance:<\/strong> ang pinakakaraniwang aplikasyon sa lahat. Kapag labis na nag-vibrate ang isang makina, ipinapakita ng modal analysis kung ang isang structural natural frequency ay hinihimok ng isang operating force tulad ng bilis ng pag-andar o <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/blade-passing-frequency\/\">blade passing frequency<\/a>.<\/li>\n<li><strong>Pagpapatunay ng disenyo:<\/strong> kinukumpirma ng mga inhinyero na ang mga natural frequency ng isang bagong produkto ay pinapanatiling malayo sa mga kilalang excitation frequency \u2014 engine RPM, blade pass, gear mesh \u2014 upang ang resonance ay hindi kailanman mailagay sa disenyo.<\/li>\n<li><strong>Pagbabago ng istruktura:<\/strong> kapag natukoy na ang isang resonance, sinusuportahan ng modal model ang mga pag-aaral na &#8220;what-if&#8221;, sumasagot sa mga tanong tulad ng &#8220;saan dapat ilagay ang isang stiffener upang itaas ang natural frequency na ito?&#8221; bago gawin ang anumang pagbabago.<\/li>\n<li><strong>Monitoring ng kalusugan ng istraktura:<\/strong> ang isang pagbabago sa mga modal parameter sa paglipas ng panahon ay maaaring magpahiwatig ng lumalaking pinsala \u2014 isang lumalaking <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/shaft-crack\/\">shaft crack<\/a>, halimbawa, nagpapababa ng stiffness at samakatuwid ay nagpapababa ng natural frequency.<\/li>\n<\/ul>\n<h2>4. Modal Analysis at ang Problema sa Resonance<\/h2>\n<p>Ang praktikal na benepisyo ng lahat ng ito ay ang kakayahang paghiwalayin ang dalawang bagay na magkapareho ang hitsura sa isang spectrum ngunit nangangailangan ng magkasalungat na solusyon: ang forcing problem at ang resonance problem. Kung ang mataas na vibration ay nagmumula sa isang malaking exciting force \u2014 halimbawa, residual <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/unbalance\/\">unbalance<\/a> \u2014 ang solusyon ay ang bawasan ang puwersa. Kung ito ay nagmumula sa isang istruktura na ang natural frequency ay nagkataong tumugma sa isang operating frequency, ang pagbabawas ng puwersa ay halos walang naitutulong; ang solusyon ay ang ilipat ang natural frequency sa pamamagitan ng pagbabago ng masa o stiffness, o sa pamamagitan ng pagdaragdag ng damping. Ang modal analysis ang kasangkapan na nagsasabi sa inyo kung aling sitwasyon ang inyong kinakaharap. Ang mga kondisyon tulad ng <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/structural-resonance\/\">structural resonance<\/a> and <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/frame-resonance\/\">frame resonance<\/a> ay nidinadyagnosa sa ganito ring paraan, at sa mga makina na may variable na bilis ang mga resulta ay madalas na nagpapakain sa isang <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/campbell-diagram\/\">Campbell diagram<\/a> na nagmamapa kung saan tumatawid ang mga excitation order sa mga natural frequency sa buong hanay ng bilis.<\/p>\n<h2>5. Kung Saan Akma ang Field Measurement<\/h2>\n<p>Ang buong multi-point modal testing ay isang nakatuong aktibidad, ngunit madalas na makikita ng reliability engineer ito sa mas compact na anyo sa shop floor: isang mabilis na bump test upang mahanap ang isang pinaghihinalaang natural frequency bago magsagawa ng balancing. Mahalaga ang hakbang na iyon dahil ang pag-balance ng isang rotor na ang support structure ay nasa resonance ay patuloy na gumagawa ng paikot na proseso lamang \u2014 ang tugon ay pinapamahalaan ng istruktura, hindi ng unbalance. Ang isang portable two-channel na instrumento tulad ng <a href=\"https:\/\/vibromera.eu\/tl\/product\/balanset-1\/\">Balanset-1A<\/a> ay nagbibigay-kakayahan sa isang inhinyero na makuha ang vibration sa sariling mga bearing ng makina sa operating speed at kumpirmahin na ang bilis ng pag-andar ay malayo sa isang structural natural frequency, upang ang kasunod na <a href=\"https:\/\/vibromera.eu\/tl\/glossary\/field-balancing\/\">on-site na pagbabalanse<\/a> ay tunay na tumatugon sa pinagmulan ng problema. Kapag napatunayang hindi ang istruktura ang sanhi, sinusukat ng parehong instrumento ang 1\u00d7 amplitude at phase na kinakailangan upang i-balance ang rotor at i-verify ang resulta. Sa ganitong paraan ang malawak na disiplina ng modal analysis at ang nakatutok na gawain ng balancing ay nagpapatibay sa isa't isa: tinitiyak ng una na nireresolba ninyo ang tamang problema, nireresolba ng pangalawa ito.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/tl\/glossary\/\">\u2190 Bumalik sa Pangunahing Index<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Isang gabay sa modal analysis, ang proseso ng pagtukoy ng structure&#8217;s natural frequencies, damping, at mode shapes. Matutunan ang tungkol sa Experimental (EMA) at Operational (OMA) Modal Analysis.<\/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\/tl\/wp-json\/wp\/v2\/glossary\/163","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/tl\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/tl\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/tl\/wp-json\/wp\/v2\/glossary\/163\/revisions"}],"predecessor-version":[{"id":101290,"href":"https:\/\/vibromera.eu\/tl\/wp-json\/wp\/v2\/glossary\/163\/revisions\/101290"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/tl\/wp-json\/wp\/v2\/media?parent=163"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/tl\/wp-json\/wp\/v2\/categories?post=163"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/tl\/wp-json\/wp\/v2\/tags?post=163"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}