{"id":126,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/frequency-response-function\/"},"modified":"2026-05-23T22:28:54","modified_gmt":"2026-05-23T22:28:54","slug":"frequency-response-function","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/bs\/glossary\/frequency-response-function\/","title":{"rendered":"\u0160ta je funkcija frekventnog odgovora (FRF)?"},"content":{"rendered":"<h1>Razumevanje funkcije frekventnog odgovora (FRF)<\/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\/bs\/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\/bs\/product\/balanset-1\/\" title=\"Prijenosni balanser i analizator vibracija 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 kompletan set prenosivi balanser i analizator vibracija\" 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\/bs\/product-category\/devices\/\" rel=\"tag\">Ure\u0111aji<\/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\/bs\/product\/balanset-1\/\" title=\"Prijenosni balanser i analizator vibracija Balanset-1A\">Prijenosni balanser i analizator vibracija 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> + PDV (ako se primjenjuje)<\/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=\"\/bs\/wp-json\/wp\/v2\/glossary\/126?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=\"Dodaj u korpu\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj u korpu\" 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=\"\/bs\/wp-json\/wp\/v2\/glossary\/126?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=\"\">Dodaj u korpu<\/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\/bs\/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\/bs\/product\/vibration-sensor\/\" title=\"Senzor vibracija\">\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 senzor vibracija u detaljnom prikazu\" 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\/bs\/product-category\/parts\/\" rel=\"tag\">dijelovi<\/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\/bs\/product\/vibration-sensor\/\" title=\"Senzor vibracija\">Senzor vibracija<\/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> + PDV (ako se primjenjuje)<\/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=\"\/bs\/wp-json\/wp\/v2\/glossary\/126?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=\"Dodaj u korpu\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj u korpu\" 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=\"\/bs\/wp-json\/wp\/v2\/glossary\/126?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=\"\">Dodaj u korpu<\/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\/bs\/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\/bs\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"opti\u010dki senzor (laserski tahometar)\">\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=\"opti\u010dki senzor (laserski tahometar)\" 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\/bs\/product-category\/parts\/\" rel=\"tag\">dijelovi<\/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\/bs\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"opti\u010dki senzor (laserski tahometar)\">opti\u010dki senzor (laserski tahometar)<\/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> + PDV (ako se primjenjuje)<\/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=\"\/bs\/wp-json\/wp\/v2\/glossary\/126?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=\"Dodaj u korpu\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj u korpu\" 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=\"\/bs\/wp-json\/wp\/v2\/glossary\/126?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=\"\">Dodaj u korpu<\/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\/bs\/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\/bs\/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 set za balansiranje rotora: kofer za no\u0161enje, multikanalnu jedinicu za kondicioniranje signala, ru\u010dni analizator, magnetnu bazu, senzore vibracija i spiralne kablove.\" 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\/bs\/product-category\/devices\/\" rel=\"tag\">Ure\u0111aji<\/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\/bs\/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> + PDV (ako se primjenjuje)<\/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=\"\/bs\/wp-json\/wp\/v2\/glossary\/126?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=\"Dodaj u korpu\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj u korpu\" 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=\"\/bs\/wp-json\/wp\/v2\/glossary\/126?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=\"\">Dodaj u korpu<\/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\/bs\/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\/bs\/product\/magnet-stand\/\" title=\"Magnetno postolje 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\/bs\/product-category\/parts\/\" rel=\"tag\">dijelovi<\/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\/bs\/product\/magnet-stand\/\" title=\"Magnetno postolje Insize-60-kgf\">Magnetno postolje 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 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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\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\/bs\/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\/bs\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dinami\u010dki balanser \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=\"Balanset-1A sadr\u017eaj seta sa interfejsnom jedinicom, senzorima, tahometrom i dodatnom opremom\" 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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\/bs\/product-category\/devices\/\" rel=\"tag\">Ure\u0111aji<\/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\/bs\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dinami\u010dki balanser \u201cBalanset-1A\u201d OEM\">Dinami\u010dki balanser \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> + PDV (ako se primjenjuje)<\/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=\"\/bs\/wp-json\/wp\/v2\/glossary\/126?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=\"Dodaj u korpu\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj u korpu\" 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=\"\/bs\/wp-json\/wp\/v2\/glossary\/126?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=\"Add to cart: \u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"\u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d has been added to your cart\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj u korpu<\/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>Funkcija frekventnog odgovora (FRF)<\/strong> opisuje kako struktura, komponenta ili sistem reaguje na primenjenu pobudnu silu kao funkcija frekvencije. Konkretno re\u010deno, ona vam govori kako \u0107e se sistem <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/vibration\/\">vibrate<\/a> na svakoj frekvenciji kada ga &#8220;udarite&#8221; poznatom silom. FRF je temelj dinamike strukture, <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/modal-analysis\/\">modal analysis<\/a> and <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/resonance\/\">resonance<\/a> detekcija \u2014 i to je jedini najprikao na\u010din da prona\u0111ete <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/natural-frequency\/\">prirodne frekvencije<\/a> pre nego \u0161to budu problema.<\/p>\n<p>Matemati\u010dki FRF je <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/transfer-function\/\">funkcija prenosa<\/a> koji povezuje izmereni izlazni odgovor (naj\u010de\u0161\u0107e <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/acceleration\/\">acceleration<\/a>) sa izmerenom uvodnom silom:<\/p>\n<blockquote><p>\n    <strong>FRF = Izlazni odgovor \/ Ulazna sila<\/strong>\n<\/p><\/blockquote>\n<p>I izlaz i ulaz su funkcije frekvencije, a sama FRF je <em>complex<\/em> funkcija \u2014 nosi oba <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/amplitude\/\">amplitude<\/a> and <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/phase\/\">phase<\/a> informacije na svakoj frekventnoj liniji. Taj sadr\u017eaj faze \u010dini FRF daleko informativnijom od obi\u010dnog spektra rada <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/spectrum\/\">spectrum<\/a>, koji bele\u017ei odgovor ali ne silu koja ga je izazvala.<\/p>\n<h2>1. Definicija: \u0160ta FRF zaista meri<\/h2>\n<p>Obi\u010dni spektar vibracija vam govori koliko ma\u0161ina jaje tre\u0161ava, ali ne <em>why<\/em>. FRF odgovara drugom i fundamentalnijem pitanju: koja je inherentna tendencija strukture da poja\u010da kretanje na svakoj frekvenciji, nezavisno od toga kako je na kraju vo\u017eena? Jer normalizuje odgovor poznatom ulaznom silom, FRF je svojstvo same strukture \u2014 njene mase, krutosti i <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/damping\/\">damping<\/a> \u2014 ve\u0107 od bilo kojih sila koje su prisutne u bilo kojem danu. Ovisno o kori\u0161tenoj jedinici odgovora, isto mjerenje se naziva druga\u010dije: ubrzanje (akceleracija\/sila), mobilnost (brzina\/sila) ili receptivnost (pomak\/sila), ali sve su to oblici FRF-a.<\/p>\n<h2>2. Kako se mjeri FRF?<\/h2>\n<p>Klasi\u010dna terenski metoda je <strong><a href=\"https:\/\/vibromera.eu\/bs\/glossary\/bump-test\/\">bump test<\/a><\/strong>, tako\u0111er pozvan test udarcem:<\/p>\n<ol>\n<li>An <strong><a href=\"https:\/\/vibromera.eu\/bs\/glossary\/accelerometer\/\">accelerometer<\/a><\/strong> je montiran na strukturi na mjestu gdje se mjerenja odgovora trebaju izvr\u0161iti.<\/li>\n<li>Struktura se udara na odabranoj to\u010dki sa <strong>instrumentaliziranom \u010deki\u0107em<\/strong> \u2014 \u010deki\u0107 sa senzor sile (\u0107elija tereta) ugra\u0111enom u njegovu vrh koji mjeri ulaznu silu svakog udarca.<\/li>\n<li>Vi\u0161ekanalni <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/vibration-analyzer\/\">vibracijski analizator<\/a> bilje\u017ei ulazni signal od \u010deki\u0107a i izlazni signal od akcelerometra simultano.<\/li>\n<li>Analizator izvr\u0161ava <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/fft\/\">FFT<\/a> na oba signala i izra\u010dunava omjer izlaza u odnosu na ulaz na svakoj frekvencijskoj liniji. Taj omjer je FRF.<\/li>\n<\/ol>\n<p>Proces se ponavlja kroz nekoliko udaraca i rezultati se usrednjavaju, \u0161to potiskuje nasumi\u010dan \u0161um i daje \u010disto, pouzdano mjerenje. Funkcija <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/coherence\/\">coherence<\/a> se izra\u010dunava sa FRF-om kao provjera kvalitete: koherentnost bliska 1,0 \u0161irom pojasa od interesa potvr\u0111uje da je izmjereni odgovor zaista bio uzrokovan izmjerenim ulazom i ne od vanjskog \u0161uma, lo\u0161e postavljenog senzora ili dvostrukog udarca \u010deki\u0107em.<\/p>\n<h2>3. Interpretacija FRF dijagrama<\/h2>\n<p>FRF se obi\u010dnoPrivikazuje kao par dijagrama koji se moraju \u010ditati zajedno:<\/p>\n<ul>\n<li><strong>Dijagram veli\u010dine:<\/strong> prikazuje amplitudu FRF-a u odnosu na frekvenciju. Sadr\u017ei razli\u010dite vrhove, a frekvencija svakog vrha je <strong>prirodna (rezonantna) frekvencija<\/strong> strukture. Visina i o\u0161trina svakog vrha ozna\u010davaju koliko poja\u010danja se javlja tamo i koliko <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/damping\/\">damping<\/a> je prisutna \u2014 visok, uzak vrh zna\u010di lagano prigu\u0161enje i jaku amplifikaciju, nizak, \u0161irok vrh zna\u010di jako prigu\u0161enje.<\/li>\n<li><strong>Phase plot:<\/strong> shows the phase shift between response and input force against frequency. As the frequency sweeps through a resonance, the phase makes a characteristic 180\u00b0 shift, passing through 90\u00b0 exactly at the natural frequency. This phase behaviour is the definitive confirmation that a peak truly is a resonance and not, say, a measurement artefact.<\/li>\n<\/ul>\n<p>\u010citanje oba grafika zajedno je za\u0161tita: pravi mod pokazuje i vrh magnitude i odgovaraju\u0107i fazni prelom, dok la\u017eni vrhovi to obi\u010dno ne pokazuju.<\/p>\n<h2>4. Primjene u dijagnostici vibracija<\/h2>\n<p>FRF je nezamjenjiv alat za dijagnostiku i rje\u0161avanje problema rezonancije u ma\u0161inama i nose\u0107e strukture:<\/p>\n<ul>\n<li><strong>Prepoznavanje prirodnih frekvencija:<\/strong> njegova primarna upotreba \u2014 pronala\u017eenje prirodnih frekvencija ma\u0161ine, njene bazne plo\u010de, povezane cijevi ili okoline <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/structural-resonance\/\">nose\u0107e strukture<\/a>.<\/li>\n<li><strong>Potvr\u0111ivanje rezonancije:<\/strong> ako ma\u0161ina vibrira sna\u017eno na odre\u0111enoj frekvenciji tijekom rada, mjerenje FRF-a otkriva je li ta radna frekvencija poravnata s prirodnom frekvencijom strukture. Kada se vrh u spektru rada poklapa s vrhom u FRF-u, rezonancija je potvr\u0111ena kao korijen visokih vibracija \u2014 mnogo precizniji odgovor nego \u0161to samo spektralni podaci mogu pru\u017eiti.<\/li>\n<li><strong><a href=\"https:\/\/vibromera.eu\/bs\/glossary\/modal-analysis\/\">Modal analysis<\/a>:<\/strong> mjerenjem FRF-a na mnogim to\u010dkama preko strukture, mo\u017ee se izgraditi potpuni model njenih modova vibracija \u2014 njegovog <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/mode-shape\/\">mode shapes<\/a>, ili radnih oblika deformacije pri rezonanciji \u2014 mo\u017ee se izgraditati. Ovaj model pokazuje ne samo frekvenciju svakog moda ve\u0107 i oblik na kojem se struktura deformira.<\/li>\n<li><strong>Strukturna modifikacija (&#8220;what-if&#8221; analiza):<\/strong> \u010dim se rezonancija potvrdi, modalni model mo\u017ee simulirati u\u010dinak kandidatskih rje\u0161enja \u2014 na primjer, dodavanje oja\u010danja ili tuning mase \u2014 prije nego \u0161to se bilo koji metal sje\u010de, tako da je odabrano rje\u0161enje poznato kao efikasno unaprijed.<\/li>\n<\/ul>\n<h2>5. Za\u0161to je FRF bitan u rotiraju\u0107im ma\u0161inama<\/h2>\n<p>Rezonancija je jedan od naj\u010de\u0161\u0107ih razloga za\u0161to rotor koji je pravilno <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/balancing\/\">balanced<\/a> i dalje vibrira previ\u0161e. Ako se radna frekvencija ma\u0161ine&#8217;s <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/running-speed\/\">running speed<\/a> poklapa s prirodnom frekvencijom strukture, \u010dak i najmanja <a href=\"https:\/\/vibromera.eu\/bs\/glossary\/residual-unbalance\/\">rezidualnu neuravnote\u017eenost<\/a> je jako amplificirana, i nikakva dalja balansiranja ne\u0107e dovesti vibraciju dolje. Zato FRF ili bump test pripadaju u alat in\u017eenjera koji radi balansiranje: kad rotor odbije da se balansira, FRF otkriva je li pravi kriv rezonantna podr\u0161ka, a ne sam rotor. U polju se to \u010desto odvija s jednim instrumentom \u2014 prijenosnim analizatorom sa dva kanala, kao \u0161to je <a href=\"https:\/\/vibromera.eu\/bs\/proizvod\/balanset-1\/\">Balanset-1A<\/a> mo\u017ee uhvatiti 1\u00d7 amplitudu i fazu koja karakteriziraju radni uvjet, dok bump test na nepokretnoj strukturi identificira bilo koju blisku prirodnu frekvenciju koju radna brzina mo\u017ee uzbuditi. Potvr\u0111ivanje razdvajanja izme\u0111u brzine vrtnje i rezonancija strukture, uz pomo\u0107 <a href=\"https:\/\/vibromera.eu\/bs\/calculators\/natural-frequency\/\">kalkulator prirodne frekvencije<\/a>, \u010desto obja\u0161njava upornu vibraciju koju samo balansiranje nikada ne bi moglo rije\u0161iti.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/bs\/glossary\/\">\u2190 Povratak na glavnu stranicu<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Uvod u funkciju frekvencijskog odgovora (FRF), klju\u010dnog mjerenja u strukturnoj i modalnoj analizi koje karakterizira kako sistem reaguje na uhodanu silu.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[114,109],"tags":[],"class_list":["post-126","glossary","type-glossary","status-publish","hentry","category-analysis","category-glossary"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/bs\/wp-json\/wp\/v2\/glossary\/126","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/bs\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/bs\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/bs\/wp-json\/wp\/v2\/glossary\/126\/revisions"}],"predecessor-version":[{"id":101235,"href":"https:\/\/vibromera.eu\/bs\/wp-json\/wp\/v2\/glossary\/126\/revisions\/101235"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/bs\/wp-json\/wp\/v2\/media?parent=126"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/bs\/wp-json\/wp\/v2\/categories?post=126"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/bs\/wp-json\/wp\/v2\/tags?post=126"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}