{"id":125,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/frame-resonance\/"},"modified":"2026-05-23T22:51:28","modified_gmt":"2026-05-23T22:51:28","slug":"frame-resonance","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/hr\/glossary\/frame-resonance\/","title":{"rendered":"\u0160to je rezonancija okvira? Vibracije strojne konstrukcije"},"content":{"rendered":"<h1>Razumijevanje rezonancije okvira<\/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\/hr\/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\/hr\/product\/balanset-1\/\" title=\"Prijenosni balanser &amp; 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 prijenosnog balansera i analizatora 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\/hr\/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\/hr\/product\/balanset-1\/\" title=\"Prijenosni balanser &amp; analizator vibracija Balanset-1A\">Portable balancer &amp; Vibration analyzer 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 je primjenjivo)<\/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=\"\/hr\/wp-json\/wp\/v2\/glossary\/125?add-to-cart=986\" data-quantity=\"1\" data-product_id=\"986\" data-product_sku=\"BS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Dodaj u ko\u0161aricu\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj u ko\u0161aricu\" 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=\"\/hr\/wp-json\/wp\/v2\/glossary\/125?add-to-cart=986\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_986\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"986\" data-product_sku=\"BS-1\" aria-label=\"Dodaj u ko\u0161aricu: \u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"&quot;Portable balancer &amp; Vibration analyzer Balanset-1A&quot; je dodan u va\u0161u ko\u0161aricu\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj u ko\u0161aricu<\/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\/hr\/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\/hr\/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=\"Detalj senzora vibracija 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\/hr\/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\/hr\/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 je primjenjivo)<\/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=\"\/hr\/wp-json\/wp\/v2\/glossary\/125?add-to-cart=1820\" data-quantity=\"1\" data-product_id=\"1820\" data-product_sku=\"VS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Dodaj u ko\u0161aricu\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj u ko\u0161aricu\" 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=\"\/hr\/wp-json\/wp\/v2\/glossary\/125?add-to-cart=1820\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1820\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1820\" data-product_sku=\"VS-1\" aria-label=\"Dodaj u ko\u0161aricu: \u201cVibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"&quot;Vibration sensor&quot; je dodan u va\u0161u ko\u0161aricu\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj u ko\u0161aricu<\/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\/hr\/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\/hr\/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\/hr\/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\/hr\/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 je primjenjivo)<\/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=\"\/hr\/wp-json\/wp\/v2\/glossary\/125?add-to-cart=1832\" data-quantity=\"1\" data-product_id=\"1832\" data-product_sku=\"Tach-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Dodaj u ko\u0161aricu\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj u ko\u0161aricu\" 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=\"\/hr\/wp-json\/wp\/v2\/glossary\/125?add-to-cart=1832\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1832\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1832\" data-product_sku=\"Tach-1\" aria-label=\"Dodaj u ko\u0161aricu: \u201cOptical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"&quot;Optical Sensor (Laser Tachometer)&quot; je dodan u va\u0161u ko\u0161aricu\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj u ko\u0161aricu<\/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\/hr\/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\/hr\/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 komplet za balansiranje rotora: torba za no\u0161enje, vi\u0161ekanalni pretvara\u010d signala, ru\u010dni analizator, magnetska baza, senzori vibracija i spiralni kabeli.\" 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\/hr\/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\/hr\/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 je primjenjivo)<\/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=\"\/hr\/wp-json\/wp\/v2\/glossary\/125?add-to-cart=1833\" data-quantity=\"1\" data-product_id=\"1833\" data-product_sku=\"BS-4\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Dodaj u ko\u0161aricu\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj u ko\u0161aricu\" 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=\"\/hr\/wp-json\/wp\/v2\/glossary\/125?add-to-cart=1833\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1833\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1833\" data-product_sku=\"BS-4\" aria-label=\"Dodaj u ko\u0161aricu: \u201cBalanset-4\u201d\" rel=\"nofollow\" data-success_message=\"&quot;Balanset-4&quot; je dodan u va\u0161u ko\u0161aricu\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj u ko\u0161aricu<\/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\/hr\/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\/hr\/product\/magnet-stand\/\" title=\"Magnetski stalak Insize nosivosti 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=\"Magnetska baza.\" 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\/hr\/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\/hr\/product\/magnet-stand\/\" title=\"Magnetski stalak Insize nosivosti 60 kgf\">Magnetski stalak Insize nosivosti 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> + PDV (ako je primjenjivo)<\/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=\"\/hr\/wp-json\/wp\/v2\/glossary\/125?add-to-cart=1852\" data-quantity=\"1\" data-product_id=\"1852\" data-product_sku=\"MS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Dodaj u ko\u0161aricu\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj u ko\u0161aricu\" 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=\"\/hr\/wp-json\/wp\/v2\/glossary\/125?add-to-cart=1852\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1852\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1852\" data-product_sku=\"MS-1\" aria-label=\"Dodaj u ko\u0161aricu: \u201cMagnetic Stand Insize-60-kgf\u201d\" rel=\"nofollow\" data-success_message=\"&quot;Magnetic Stand Insize-60-kgf&quot; je dodan u va\u0161u ko\u0161aricu\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj u ko\u0161aricu<\/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\/hr\/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\/hr\/product\/reflective-tape\/\" title=\"Reflektiraju\u0107a traka\">\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=\"Reflektiraju\u0107a traka\" 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\/hr\/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\/hr\/product\/reflective-tape\/\" title=\"Reflektiraju\u0107a traka\">Reflektiraju\u0107a traka<\/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> + PDV (ako je primjenjivo)<\/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=\"\/hr\/wp-json\/wp\/v2\/glossary\/125?add-to-cart=2329\" data-quantity=\"1\" data-product_id=\"2329\" data-product_sku=\"rt-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Dodaj u ko\u0161aricu\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj u ko\u0161aricu\" 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=\"\/hr\/wp-json\/wp\/v2\/glossary\/125?add-to-cart=2329\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_2329\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"2329\" data-product_sku=\"rt-1\" aria-label=\"Dodaj u ko\u0161aricu: \u201cReflective tape\u201d\" rel=\"nofollow\" data-success_message=\"&quot;Reflective tape&quot; je dodan u va\u0161u ko\u0161aricu\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj u ko\u0161aricu<\/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\/hr\/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\/hr\/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=\"Sadr\u017eaj kompleta Balanset-1A s jedinicom za su\u010delje, senzorima, tahometrom i dodacima\" 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\/hr\/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\/hr\/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 je primjenjivo)<\/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=\"\/hr\/wp-json\/wp\/v2\/glossary\/125?add-to-cart=4193\" data-quantity=\"1\" data-product_id=\"4193\" data-product_sku=\"BS-1OEM\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"Dodaj u ko\u0161aricu\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj u ko\u0161aricu\" 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=\"\/hr\/wp-json\/wp\/v2\/glossary\/125?add-to-cart=4193\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_4193\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"4193\" data-product_sku=\"BS-1OEM\" aria-label=\"Dodaj u ko\u0161aricu: \u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"&quot;Dynamic balancer \u201cBalanset-1A\u201d OEM&quot; je dodan u va\u0161u ko\u0161aricu\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj u ko\u0161aricu<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_4193\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/section>\n\t\t\n<p><strong>Rezonancija okvira<\/strong> je specifi\u010dan oblik <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/structural-resonance\/\">strukturna rezonancija<\/a> u kojem se okvir, ku\u010di\u0161te, omota\u010d ili oklopljenje stroja vibrira na jednoj od svojih <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/natural-frequency\/\">prirodne frekvencije<\/a> kao odgovor na pobudu iz rotacijskih komponenti. Za razliku od temelja ili <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/pedestal-looseness\/\">postolje<\/a> rezonancije, koje se javljaju u potpornoj strukturi ispod stroja, rezonancija okvira \u017eivi u samom tijelu stroja \u2014 lijevanoj ili zavaritenoj \u010deli\u010dno-konstruiranoj strukturi koja obavija rotiraju\u0107e elemente. Kada se frekvencija pobude na\u0111e na prirodnoj frekvenciji okvira, <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/resonance\/\">rezonancija<\/a> poja\u010dava gibanje daleko vi\u0161e od onoga \u0161to bi sama pobuda mogla izazvati.<\/p>\n<p>Rezonancija okvira je \u010desta u strojevima s velikim, relativno laganim ku\u010di\u0161tima \u2014 ventilatorima, puha\u010dima, pumpama i motorima. Obi\u010dno se pokazuje kao pretjerana buka, vidljiva vibracija pokrova ili panela, i visoka <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/vibration\/\">vibracija<\/a> o\u010ditanja na okvirima koja su drasti\u010dno neproporcionalna stvarnim vibracijama rotora. Budu\u0107i da simptom izgleda alarmantan, rezonancija okvir\u0430 je jedan od naj\u010de\u0161\u0107e pogre\u0161no dijagnostificiranih problema na terenu: analiziraju\u0107i vidi ogromno o\u010ditanje i osu\u0111uje savr\u0161eno uravnote\u017eeni rotor.<\/p>\n<h2>1. Definicija: \u0160to je rezonancija okvir\u0430?<\/h2>\n<p>Svaka struktura ima skup prirodnih frekvencija i povezanih oblika tona na kojima preferira da se savija. Strojni okvir nije iznimka. Njegove stijene, krajnji dijelovi, noge i paneli svaki imaju savojne i torzijske modove, a tanki za\u0161titni panel mo\u017ee imati nekoliko vlastitih modova u \u010dujnom rasponu. Sve dok te frekvencije ostanu dalje od pogonskih frekvencija stroja, okvir jednostavno prenosi silu tiho. Problemi po\u010dinju kada se radna frekvencija podudara s modobom okvir\u0430 i struktura po\u010dinje zvecati.<\/p>\n<p>Karakteristika rezonancije okvir\u0430 je <em>poja\u010danje<\/em>: okvir se kre\u0107e nekoliko puta vi\u0161e od le\u017eajeva koje okru\u017euje. Energija dolazi od rotora, ali odgovor pripada strukturi. To je razlog za\u0161to mjerenja obavljena na okviru mogu biti pet do deset puta vi\u0161a od mjerenja na ku\u0107i\u0161tu le\u017eaja samo nekoliko centimetara dalje. Temeljna svojstva koja odre\u0111uju gdje padaju ti modovi je <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/stiffness\/\">uko\u010denost<\/a> relativno prema masi \u2014 oja\u010dajte okvir i frekvencije rastu; dodajte masu i padaju.<\/p>\n<h2>2. Uobi\u010dajene situacije rezonancije okvir\u0430<\/h2>\n<h3>Okviri motora i generatora<\/h3>\n<ul>\n<li><strong>Prirodne frekvencije:<\/strong> tipi\u010dno 50\u2013400 Hz ovisno o veli\u010dini i konstrukciji.<\/li>\n<li><strong>Uzbu\u0111enje:<\/strong> 1\u00d7 (<a href=\"https:\/\/vibromera.eu\/hr\/glossary\/unbalance\/\">neravnote\u017ea<\/a>), 2\u00d7 mre\u017ena frekvencija (120 Hz na 60 Hz napajanju, 100 Hz na 50 Hz), te elektromagnetske sile vezane uz <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/electrical-frequency\/\">elektri\u010dna frekvencija<\/a>.<\/li>\n<li><strong>Simptomi:<\/strong> vibracije okvir\u0430 daleko ve\u0107e od vibracija le\u017eaja; \u010dujna hum ili zujanje.<\/li>\n<li><strong>Ozbiljnost:<\/strong> okvir mo\u017ee pokazati 5\u201310\u00d7 vi\u0161e od le\u017eaja.<\/li>\n<\/ul>\n<h3>Ku\u0107i\u0161ta ventilatora i puhala<\/h3>\n<ul>\n<li><strong>Prirodne frekvencije:<\/strong> 20\u2013200 Hz za tipi\u010dne industrijske ventilatore.<\/li>\n<li><strong>Uzbu\u0111enje:<\/strong> <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/blade-passing-frequency\/\">frekvencija prolaska lopatice<\/a> (broj o\u0161trica \u00d7 o\/min).<\/li>\n<li><strong>Simptomi:<\/strong> Ku\u0107i\u0161ne plo\u010de sna\u017eno vibriraju; glasna aerodinami\u010dka buka<\/li>\n<li><strong>Karakteristika:<\/strong> mo\u017ee se pojaviti samo pri specifi\u010dnim brzinama ili uvjetima strujanja.<\/li>\n<\/ul>\n<h3>Ku\u0107i\u0161ta pumpi<\/h3>\n<ul>\n<li><strong>Prirodne frekvencije:<\/strong> 30\u2013300 Hz ovisno o projektu ku\u0107i\u0161ta.<\/li>\n<li><strong>Uzbu\u0111enje:<\/strong> <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/vane-passing-frequency\/\">frekvencija prolaska lopatice<\/a> i hidrauli\u010dke pulsacije.<\/li>\n<li><strong>Simptomi:<\/strong> vibracije ku\u0107i\u0161ta, buka i rizik od zamora pukotine.<\/li>\n<li><strong>Hidrauli\u010dka spojka:<\/strong> teku\u0107ina u ku\u0107i\u0161tu mo\u017ee povezati vibracije rotora i ku\u0107i\u0161ta, \u0161to komplicira sliku.<\/li>\n<\/ul>\n<h3>Ku\u0107i\u0161ta zup\u010danika<\/h3>\n<ul>\n<li>Uzrokovano <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/gear-mesh-frequency\/\">frekvencija zahvata zup\u010danika<\/a>.<\/li>\n<li>Prirodne frekvencije okvira \u010desto se preklapaju s frekvencijom mesinga i njezinim harmonicima.<\/li>\n<li>Proizvodi karakteristi\u010dan jasan zvuk zup\u010danika kada je u rezonanciji.<\/li>\n<\/ul>\n<h2>3. Vibracyjski potpis i detektiranje<\/h2>\n<h3>Karakteristi\u010dni simptomi<\/h3>\n<ul>\n<li><strong>Ovisno o mjestu:<\/strong> vibracije se dramati\u010dno razlikuju po povr\u0161ini okvira \u2014 razlike od 10\u00d7 izme\u0111u to\u010daka su \u010deste.<\/li>\n<li><strong>Le\u017eaj u odnosu na okvir:<\/strong> vibracije okvira daleko prema\u0161uju vibracije le\u017eaja (\u010desto 3\u201310\u00d7).<\/li>\n<li><strong>Frekvencijski specifi\u010dno:<\/strong> problem se pojavljuje samo pri rezonantnoj frekvenciji; ostale frekvencije izgledaju normalno.<\/li>\n<li><strong>Osjetljivo na brzinu:<\/strong> te\u0161ko unutar uskog pojasa (\u00b110\u201320% rezonantne brzine).<\/li>\n<li><strong>Vizualno gibanje:<\/strong> kretanje okvira \u010desto je vidljivo golim okom.<\/li>\n<\/ul>\n<h3>Test udarca (kucanja)<\/h3>\n<p>Kona\u010dan test. Udarite okvir gumenim \u010deki\u0107em ili kalibriraju\u0107im \u010deki\u0107em, izmjerite odgovoru s <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/accelerometer\/\">akcelerometar<\/a>, i o\u010ditati vlastite frekvencije okvira s vrhova u frekvencijskom odzivu. Usporedba tih vrhova s radnim frekvencijama (1\u00d7, 2\u00d7, prolazak lopatica i tako dalje) odmah otkriva svaku opasnu podudarnost. Pogledajte <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/bump-test\/\">Ispitivanje udarcima<\/a> i <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/impact-testing\/\">udarni test<\/a> za cijeli postupak.<\/p>\n<h3>Mobilni pregled ubrzanja<\/h3>\n<p>Tijekom rada stroja, izmjerite vibracije u mnogim to\u010dkama po okviru i napravite vibracijsku mapu visokih i niskih podru\u010dja. Uzorak otkriva oblik moda \u2014 savijanje, torzija ili fleksija panela \u2014 i locira anti\u010dvorove (maksimalno kretanje) i \u010dvorove (minimalno kretanje). Puna <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/ods-analysis\/\">analiza oblika radne defleksije (ODS)<\/a> animira to kretanje, a formalno <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/modal-analysis\/\">modalna analiza<\/a> izvla\u010di osnovne modove.<\/p>\n<h3>Mjerenje prijenosne funkcije<\/h3>\n<p>Izmjerite <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/coherence\/\">koherencija<\/a> izme\u0111u vibracija le\u017eaja (ulaz) i vibracija okvira (izlaz). Visoka koherentnost na specifi\u010dnoj frekvenciji potvr\u0111uje da je kretanje okvira uzrokovano rotorskim silama i rezonantno s njima. <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/transfer-function\/\">prijenosna funkcija<\/a> sama po sebi kvantificira faktor poja\u010danja.<\/p>\n<h2>4. Potvrda rezonancije na terenu<\/h2>\n<p>Prije nego \u0161to se neka konstrukcija oja\u010da ili bilo koji rotor dotakne, dijagnoza mora biti potvr\u0111ena \u2014 a to zna\u010di mjerenje pravog pona\u0161anja rotora odvojeno od pona\u0161anja okvira. Prenosivi dvokanalnih analizator poput <a href=\"https:\/\/vibromera.eu\/hr\/proizvod\/balanset-1\/\">Balanset-1A<\/a> \u010dini to jednostavnim: analiti\u010dar mo\u017ee zabilje\u017eiti <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/phase\/\">amplituda i faza<\/a> i kompletan spektar na ku\u0107i\u0161tu le\u017eaja, zatim premjestiti senzor na sumnjivi dio i promatrati rast amplitude na rezonantnoj frekvenciji dok se faza pomjera kroz strukturalni mod. Ako je vibracija rotora na frekvenciji 1\u00d7 skromna na le\u017eaju ali ogromna na okviru, verdict je rezonancija, a ne neuravnote\u017eenost. Isti instrument omogu\u0107ava vam da isprobate uravnote\u017eenje rotora kako biste isklju\u010dili ili uklju\u010dili neuravnote\u017eenost, i da izvedete coast-down test kako bi se rezonantni vrh pojavio kada brzina pro\u0111e kroz njega.<\/p>\n<h2>5. Rje\u0161enja i ubla\u017eavanje<\/h2>\n<h3>Modifikacije oja\u010danja konstrukcije<\/h3>\n<ul>\n<li><strong>Dodajte strukturalne rebra ili poja\u010danja:<\/strong> pove\u0107ava krutost pri savijanju, podi\u017ee prirodnu frekvenciju iznad raspona pobu\u0111ivanja, je ekonomi\u010dno i mo\u017ee se primijenjeno na postoje\u0107u opremu.<\/li>\n<li><strong>Pove\u0107ajte debljinu materijala:<\/strong> zadebljavanje stjena okvira ili panela znatno pove\u0107ava krutost i frekvenciju, mada mo\u017ee zahtijevati nove ljevove ili fabriciranja.<\/li>\n<li><strong>Strukturalne veze i oja\u010danja:<\/strong> povezivanje suprotnih strana okvira sprje\u010dava savijanje; unakrsno oja\u010danje dodaje torzijsku krutost i \u010desto se mo\u017ee ugraditi izvana.<\/li>\n<\/ul>\n<h3>Dodavanje mase<\/h3>\n<ul>\n<li><strong>Sni\u017eavajte prirodnu frekvenciju:<\/strong> dodajte masu kako biste snizili frekvenciju ispod raspona pobu\u0111ivanja.<\/li>\n<li><strong>Strate\u0161ko postavljanje:<\/strong> dodajte masu na lokacijama anti\u010dvorova za maksimalan u\u010dinak.<\/li>\n<li><strong>Ugo\u0111ena masa:<\/strong> precizno izra\u010dunata masa pomjera odre\u0111eni problemati\u010dan na\u010din.<\/li>\n<li><strong>Kompromis:<\/strong> dodatna masa nije po\u017eeljna u svakoj primjeni.<\/li>\n<\/ul>\n<p>Ho\u0107ete li odabrati pove\u0107anje ili smanjenje frekvencije, brz izra\u010dun \u010duva vas od sljede\u0107eg pojasa rezonancije. A <a href=\"https:\/\/vibromera.eu\/hr\/calculators\/foundation-natural-frequency\/\">kalkulator prirodne frekvencije temelja<\/a> i <a href=\"https:\/\/vibromera.eu\/hr\/calculators\/damping-ratio-calculator\/\">kalkulator prigu\u0161enja<\/a> pomo\u0107i \u0107e vam procijeniti gdje \u0107e modificirana struktura do\u0107i prije nego \u0161to se rezani bilo koji metal.<\/p>\n<h3>Tretmani prigu\u0161enja<\/h3>\n<ul>\n<li><strong>Prigu\u0161enje s ograni\u010denim slojem:<\/strong> viskozni sloj sandvi\u010diran izme\u0111u metalnih ko\u017eica, primijenjen na velike ravne plo\u010de i pokrove. Smanjuje vrh rezonancije za 50\u201380% i dobro funkcionira u rasponu od pribli\u017eno 20\u2013500 Hz.<\/li>\n<li><strong>Prigu\u0161enje slobodnog sloja:<\/strong> materijal prigu\u0161enja vezan izravno na povr\u0161inu koja vibrira \u2014 jednostavnije od prigu\u0161enja s ograni\u010denim slojem, ali manje u\u010dinkovito, korisno gdje je pristup ograni\u010den.<\/li>\n<\/ul>\n<h3>Operacijske promjene<\/h3>\n<ul>\n<li><strong>Promjena brzine:<\/strong> raditi brzinom pri kojoj rezonancija ne nastaje.<\/li>\n<li><strong>Smanjite uzbude:<\/strong> pobolj\u0161ati <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/balancing\/\">uravnote\u017eenost<\/a> i <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/misalignment\/\">poravnanje<\/a> da se smanji amplituda uzbude koja napaja rezonanciju.<\/li>\n<li><strong>Promjene procesa:<\/strong> Promijenite protok, tlak ili optere\u0107enje kako biste promijenili frekvencije pobude<\/li>\n<\/ul>\n<h2>6. Sprje\u010davanje pri oblikovanju<\/h2>\n<h3>Principi oblikovanja<\/h3>\n<ul>\n<li><strong>Odgovaraju\u0107a krutost:<\/strong> oblikujte okvir tako da njegove prirodne frekvencije budu iznad 2\u00d7 naj\u0161\u0107e frekvencije uzbude.<\/li>\n<li><strong>Raspodjela mase:<\/strong> izbjegavajte koncentrirane mase koje stvaraju niskofrekvencijske modove.<\/li>\n<li><strong>Rebranje i oja\u010danje:<\/strong> ugradite elemente za ukru\u0107enje od samog po\u010detka.<\/li>\n<li><strong>Modalna analiza:<\/strong> tijekom projektiranja koristite FEA za predvi\u0111anje i optimizaciju vlastitih frekvencija.<\/li>\n<\/ul>\n<h3>Provjera konstrukcije<\/h3>\n<ul>\n<li>Ispitivanje prototipa udarnom analizom.<\/li>\n<li>Mjerenje oblika radnog otklona na prvim izra\u0111enim jedinicama.<\/li>\n<li>Revidirajte konstrukciju prije proizvodnje ako se prona\u0111u rezonancije.<\/li>\n<\/ul>\n<h2>7. Primjer iz prakse<\/h2>\n<p><strong>Situacija:<\/strong> motor od 75 KS koji pogoni centrifugalni ventilator, s prekomjernom bukom i vibracijama.<\/p>\n<ul>\n<li><strong>Simptomi:<\/strong> vibracije ku\u0107i\u0161ta motora 12 mm\/s; vibracije le\u017eaja samo 2,5 mm\/s.<\/li>\n<li><strong>Frekvencija:<\/strong> 120 Hz (2\u00d7 frekvencija mre\u017ee pri napajanju od 60 Hz).<\/li>\n<li><strong>Test udara:<\/strong> otkrila je vlastitu frekvenciju ku\u0107i\u0161ta od 118 Hz \u2014 gotovo to\u010dno na pobudnoj frekvenciji.<\/li>\n<li><strong>Osnovni uzrok:<\/strong> ku\u0107i\u0161te je rezoniralo na frekvenciji elektromagnetske pobude.<\/li>\n<li><strong>Rije\u0161enje:<\/strong> dodana su \u010detiri kutna \u010deli\u010dna ukru\u0107enja koja povezuju noge motora s krajnjim \u0161titovima.<\/li>\n<li><strong>Rezultat:<\/strong> vlastita frekvencija ku\u0107i\u0161ta pomaknula se na 165 Hz, a vibracije su pale na 3,2 mm\/s \u2014 ugodno natrag u prihvatljivo podru\u010dje prema <a href=\"https:\/\/vibromera.eu\/hr\/glossary\/iso-20816-3\/\">ISO 20816-3<\/a> (moderni nasljednik norme ISO 10816-3).<\/li>\n<li><strong>Cijena:<\/strong> otprilike 200 USD za materijal, naspram oko 8.000 USD za zamjenu motora.<\/li>\n<\/ul>\n<p>Rezonancija ku\u0107i\u0161ta \u010dest je, ali \u010desto pogre\u0161no dijagnosticiran problem vibracija. Prepoznavanje karakteristi\u010dnih simptoma \u2014 visokih vibracija ku\u0107i\u0161ta u odnosu na vibracije le\u017eaja, o\u0161tre frekvencijske specifi\u010dnosti i sna\u017ene ovisnosti o lokaciji \u2014 te primjena pravih dijagnosti\u010dkih tehnika (udarno ispitivanje i ODS analiza) vode do ciljanih rje\u0161enja koja mogu drasti\u010dno smanjiti vibracije uz vrlo skroman tro\u0161ak.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/hr\/glossary\/\">\u2190 Natrag na glavni indeks<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Saznajte vi\u0161e o rezonanciji okvira, poja\u010davanju vibracija kada okviri strojeva, ku\u0107i\u0161ta ili ku\u0107i\u0161ta rezoniraju na radnim frekvencijama, uzrokuju\u0107i prekomjernu buku i strukturno naprezanje.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,110],"tags":[],"class_list":["post-125","glossary","type-glossary","status-publish","hentry","category-glossary","category-vibration-diagnostics"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/hr\/wp-json\/wp\/v2\/glossary\/125","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/hr\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/hr\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/hr\/wp-json\/wp\/v2\/glossary\/125\/revisions"}],"predecessor-version":[{"id":101384,"href":"https:\/\/vibromera.eu\/hr\/wp-json\/wp\/v2\/glossary\/125\/revisions\/101384"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/hr\/wp-json\/wp\/v2\/media?parent=125"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/hr\/wp-json\/wp\/v2\/categories?post=125"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/hr\/wp-json\/wp\/v2\/tags?post=125"}],"curies":[{"name":"radni list","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}