{"id":66,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/bump-test\/"},"modified":"2026-05-23T22:33:04","modified_gmt":"2026-05-23T22:33:04","slug":"bump-test","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/ro\/glossary\/bump-test\/","title":{"rendered":"Ce este un test de impact? Analiza modal\u0103 a impactului"},"content":{"rendered":"<h1>\u00cen\u021belegerea test\u0103rii la impact<\/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\/ro\/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\/ro\/product\/balanset-1\/\" title=\"Echilibrator portabil \u0219i analizor de vibra\u021bii Balanset-1A\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Balanset-1A kit complet \u2014 echilibrator portabil \u0219i analizor de vibra\u021bii\" 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\/ro\/product-category\/devices\/\" rel=\"tag\">Dispozitive<\/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\/ro\/product\/balanset-1\/\" title=\"Echilibrator portabil \u0219i analizor de vibra\u021bii Balanset-1A\">Echilibrator portabil \u0219i analizor de vibra\u021bii 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> + TVA (dac\u0103 este cazul)<\/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=\"\/ro\/wp-json\/wp\/v2\/glossary\/66?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=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" 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=\"\/ro\/wp-json\/wp\/v2\/glossary\/66?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=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Portable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u201ePortable balancer &amp; Vibration analyzer Balanset-1A\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/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\/ro\/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\/ro\/product\/vibration-sensor\/\" title=\"Senzor de vibra\u021bii\">\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=\"Prim-plan senzor de vibra\u021bii 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\/ro\/product-category\/parts\/\" rel=\"tag\">Piese<\/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\/ro\/product\/vibration-sensor\/\" title=\"Senzor de vibra\u021bii\">Senzor de vibra\u021bii<\/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> + TVA (dac\u0103 este cazul)<\/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=\"\/ro\/wp-json\/wp\/v2\/glossary\/66?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=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" 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=\"\/ro\/wp-json\/wp\/v2\/glossary\/66?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=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Vibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u201eVibration sensor\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/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\/ro\/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\/ro\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Senzor optic (tahometru cu laser)\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Senzor optic (tahometru cu laser)\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-1536x1023.webp 1536w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU.webp 1600w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/ro\/product-category\/parts\/\" rel=\"tag\">Piese<\/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\/ro\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Senzor optic (tahometru cu laser)\">Senzor optic (tahometru cu laser)<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>124.00<\/span> + TVA (dac\u0103 este cazul)<\/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=\"\/ro\/wp-json\/wp\/v2\/glossary\/66?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=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" 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=\"\/ro\/wp-json\/wp\/v2\/glossary\/66?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=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Optical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u201eOptical Sensor (Laser Tachometer)\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/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\/ro\/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\/ro\/product\/balanset-4\/\" title=\"Balanset-4\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Kit de echilibrare a rotorului Vibromera: geant\u0103 de transport, condi\u021bioner de semnal multicanal, analizor portabil, baz\u0103 magnetic\u0103, senzori de vibra\u021bii \u0219i cabluri spiralate.\" 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\/ro\/product-category\/devices\/\" rel=\"tag\">Dispozitive<\/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\/ro\/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> + TVA (dac\u0103 este cazul)<\/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=\"\/ro\/wp-json\/wp\/v2\/glossary\/66?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=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" 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=\"\/ro\/wp-json\/wp\/v2\/glossary\/66?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=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Balanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u201eBalanset-4\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/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\/ro\/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\/ro\/product\/magnet-stand\/\" title=\"Stand magnetic 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=\"Baza magnetic\u0103.\" 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\/ro\/product-category\/parts\/\" rel=\"tag\">Piese<\/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\/ro\/product\/magnet-stand\/\" title=\"Stand magnetic Insize-60-kgf\">Stand magnetic Insize-60-kgf<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>46.00<\/span> + TVA (dac\u0103 este cazul)<\/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=\"\/ro\/wp-json\/wp\/v2\/glossary\/66?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=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" 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=\"\/ro\/wp-json\/wp\/v2\/glossary\/66?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=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Magnetic Stand Insize-60-kgf\u201d\" rel=\"nofollow\" data-success_message=\"\u201eMagnetic Stand Insize-60-kgf\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/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\/ro\/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\/ro\/product\/reflective-tape\/\" title=\"Band\u0103 reflectorizant\u0103\">\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=\"Band\u0103 reflectorizant\u0103\" 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\/ro\/product-category\/parts\/\" rel=\"tag\">Piese<\/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\/ro\/product\/reflective-tape\/\" title=\"Band\u0103 reflectorizant\u0103\">Band\u0103 reflectorizant\u0103<\/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> + TVA (dac\u0103 este cazul)<\/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=\"\/ro\/wp-json\/wp\/v2\/glossary\/66?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=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" 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=\"\/ro\/wp-json\/wp\/v2\/glossary\/66?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=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Reflective tape\u201d\" rel=\"nofollow\" data-success_message=\"\u201eReflective tape\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/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\/ro\/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\/ro\/product\/dynamic-balancer-balanset-1a\/\" title=\"Echilibrator dinamic &quot;Balanset-1A&quot; 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=\"Con\u021binutul kitului Balanset-1A cu unitate de interfa\u021b\u0103, senzori, tahometru \u0219i accesorii\" 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\/ro\/product-category\/devices\/\" rel=\"tag\">Dispozitive<\/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\/ro\/product\/dynamic-balancer-balanset-1a\/\" title=\"Echilibrator dinamic &quot;Balanset-1A&quot; OEM\">Echilibrator dinamic \"Balanset-1A\" 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> + TVA (dac\u0103 este cazul)<\/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=\"\/ro\/wp-json\/wp\/v2\/glossary\/66?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=\"Adaug\u0103 \u00een co\u0219\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Adaug\u0103 \u00een co\u0219\" 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=\"\/ro\/wp-json\/wp\/v2\/glossary\/66?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=\"Adaug\u0103 \u00een co\u0219: &amp;lbquo;Dynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"\u201eDynamic balancer \u201cBalanset-1A\u201d OEM\u201d a fost ad\u0103ugat \u00een co\u0219\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Adaug\u0103 \u00een co\u0219<\/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>A <strong>testul cu impact<\/strong> \u2014 cunoscut\u0103 \u0219i sub denumirea de test de impact sau test cu ciocanul \u2014 este o tehnic\u0103 experimental\u0103 simpl\u0103 pentru identificarea <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/natural-frequency\/\">frecven\u021be naturale<\/a> \u0219i <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/damping\/\">amortizare<\/a> caracteristicile unei structuri sau ale unui utilaj prin lovirea acesteia cu un ciocan (echipat cu senzori sau nu) \u0219i m\u0103surarea vibra\u021biilor rezultate <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/vibration\/\">vibra\u021bii<\/a> r\u0103spuns cu unul sau mai multe <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/accelerometer\/\">accelerometre<\/a>. O singur\u0103 lovitur\u0103 puternic\u0103 excit\u0103 simultan toate modurile structurale, iar o <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/fft\/\">FFT<\/a> curba de r\u0103spuns eviden\u021biaz\u0103 aceste frecven\u021be naturale sub forma unor v\u00e2rfuri \u00een <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/spectrum\/\">spectrul de frecven\u021b\u0103<\/a>. Este cea mai practic\u0103 metod\u0103 pentru teren <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/modal-analysis\/\">testare modal\u0103<\/a> deoarece nu necesit\u0103 altceva dec\u00e2t un ciocan \u0219i un analizor de vibra\u021bii \u2014 f\u0103r\u0103 dispozitive de agitare electrodinamice costisitoare \u0219i f\u0103r\u0103 configura\u021bii complexe. Prin urmare, este utilizat \u00een mod constant pentru depistarea defec\u021biunilor <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/resonance\/\">rezonan\u021b\u0103<\/a> probleme, verificare <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/structural-resonance\/\">rezonan\u021be structurale<\/a>\u0219i confirm\u00e2nd c\u0103 frecven\u021bele de func\u021bionare sunt separate \u00een mod sigur de frecven\u021bele naturale.<\/p>\n<h2>1. Defini\u021bie: Ce este un test de impact?<\/h2>\n<p>Principiul care st\u0103 la baza unui test de impact const\u0103 \u00een faptul c\u0103, din punct de vedere matematic, un impact reprezint\u0103 un impuls foarte scurt care con\u021bine energie pe o band\u0103 larg\u0103 de frecven\u021be, toate simultan. Atunci c\u00e2nd aceast\u0103 energie de band\u0103 larg\u0103 este transmis\u0103 unei structuri, fiecare mod a c\u0103rui frecven\u021b\u0103 natural\u0103 se \u00eencadreaz\u0103 \u00een l\u0103\u021bimea de band\u0103 a impulsului intr\u0103 \u00een rezonan\u021b\u0103 simultan. Structura \u201ese stinge\u201d apoi la propriile frecven\u021be caracteristice, iar r\u0103spunsul \u00een dec\u0103dere \u2014 captat de accelerometru \u2014 poart\u0103 amprenta acestor moduri. Transformarea vibra\u021biei \u00een domeniul frecven\u021bial transform\u0103 fiecare mod \u00eentr-un v\u00e2rf, astfel \u00eenc\u00e2t o singur\u0103 lovitur\u0103 poate cartografia caracterul dinamic al \u00eentregului cadru al ma\u0219inii, al soclului sau al conductei \u00een c\u00e2teva secunde. Este varianta practic\u0103 a disciplinei mai largi a <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/impact-testing\/\">teste de impact<\/a>.<\/p>\n<h2>2. Echipamentul necesar<\/h2>\n<h3>Ciocan de impact<\/h3>\n<p>Alegerea ciocanului determin\u0103 dac\u0103 rezultatul este unul cantitativ sau doar calitativ.<\/p>\n<h4>Ciocan instrumentat (preferabil)<\/h4>\n<ul>\n<li>Un traductor de for\u021b\u0103 \u00eencorporat \u00een capul ciocanului m\u0103soar\u0103 direct for\u021ba de impact.<\/li>\n<li>Acest lucru permite o adev\u0103rat\u0103 <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/transfer-function\/\">func\u021bie de transfer<\/a> (reac\u021bie \u00eemp\u0103r\u021bit\u0103 la for\u021b\u0103) \u0219i un <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/frequency-response-function\/\">func\u021bia de r\u0103spuns \u00een frecven\u021b\u0103<\/a> pentru a fi calculat.<\/li>\n<li>Rezultatele sunt cantitative \u0219i repetabile.<\/li>\n<li>Cost estimativ: 500\u20133.000 $.<\/li>\n<\/ul>\n<h4>Neinstrumentat (simplu)<\/h4>\n<ul>\n<li>Este suficient un ciocan obi\u0219nuit, un ciocan de cauciuc sau chiar o lovitur\u0103 aplicat\u0103 cu m\u00e2na.<\/li>\n<li>Se m\u0103soar\u0103 doar reac\u021bia, nu \u0219i for\u021ba.<\/li>\n<li>Ofer\u0103 o identificare calitativ\u0103 a frecven\u021belor \u2014 indic\u00e2nd unde se afl\u0103 v\u00e2rfurile, dar nu \u0219i amplitudinea lor absolut\u0103 pe unitate de for\u021b\u0103.<\/li>\n<li>Acest lucru este perfect adecvat pentru multe aplica\u021bii pe teren.<\/li>\n<li>Gratuit sau la un cost foarte mic.<\/li>\n<\/ul>\n<h3>M\u0103surarea r\u0103spunsului<\/h3>\n<ul>\n<li>Un accelerometru montat \u00een punctul de interes.<\/li>\n<li>Conectat la un analizor de vibra\u021bii sau la o unitate de achizi\u021bie a datelor.<\/li>\n<li>Pentru a identifica v\u00e2rfurile este necesar\u0103 capacitatea de analiz\u0103 FFT.<\/li>\n<\/ul>\n<h3>Analiz\u0103<\/h3>\n<ul>\n<li>Transformata Fourier rapid\u0103 (FFT) a semnalului de r\u0103spuns.<\/li>\n<li>V\u00e2rfurile corespund frecven\u021belor naturale.<\/li>\n<li>L\u0103\u021bimea v\u00e2rfului este un indicator al amortiz\u0103rii.<\/li>\n<\/ul>\n<h2>3. Procedura de testare<\/h2>\n<h3>Test de baz\u0103 la impact<\/h3>\n<ol>\n<li><strong>Conecta\u021bi accelerometrul:<\/strong> la punctul de m\u0103surare a r\u0103spunsului ales.<\/li>\n<li><strong>Configura\u021bi analizorul:<\/strong> \u00een modul FFT, pe un interval de frecven\u021b\u0103 adecvat pentru structur\u0103.<\/li>\n<li><strong>Lovi\u021bi structura:<\/strong> o singur\u0103 lovitur\u0103 puternic\u0103 cu ciocanul.<\/li>\n<li><strong>\u00cenregistra\u021bi r\u0103spunsul:<\/strong> \u00eenregistra\u021bi dec\u0103derea vibra\u021biei.<\/li>\n<li><strong>Repeta\u021bi:<\/strong> mai multe lovituri pentru calcularea mediei \u2014 de obicei \u00eentre trei \u0219i zece \u2014 pentru a atenua varia\u021biile dintre lovituri.<\/li>\n<li><strong>Analiza\u021bi:<\/strong> FFT-ul rezultat eviden\u021biaz\u0103 v\u00e2rfurile frecven\u021belor proprii.<\/li>\n<\/ol>\n<h3>Testare avansat\u0103<\/h3>\n<ul>\n<li>M\u0103sur\u0103tori efectuate \u00een mai multe puncte de r\u0103spuns pentru a determina <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/mode-shape\/\">forme de mod<\/a>.<\/li>\n<li>Ciocan instrumentat pentru func\u021bii de transfer cantitative<\/li>\n<li><a href=\"https:\/\/vibromera.eu\/ro\/glossary\/coherence\/\">Coeren\u021b\u0103<\/a> analiz\u0103 pentru validarea calit\u0103\u021bii datelor m\u0103surate.<\/li>\n<li>Calculul complet al func\u021biei de r\u0103spuns \u00een frecven\u021b\u0103 (FRF).<\/li>\n<\/ul>\n<h2>4. Aplica\u021bii<\/h2>\n<h3>Identificarea rezonan\u021bei<\/h3>\n<p>Aceasta este cea mai frecvent\u0103 aplica\u021bie. Testul determin\u0103 frecven\u021bele proprii ale unei structuri, care sunt apoi comparate cu frecven\u021bele de func\u021bionare ale ma\u0219inii \u2014 1\u00d7, 2\u00d7, <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/blade-passing-frequency\/\">trecerea lamei<\/a>\u0219i a\u0219a mai departe \u2014 pentru a stabili dac\u0103 rezonan\u021ba este responsabil\u0103 de vibra\u021biile intense \u0219i pentru a orienta o strategie de modificare. De asemenea, reprezint\u0103 echivalentul natural al unui <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/run-up-analysis\/\">accelerare<\/a> sau <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/coastdown-analysis\/\">decelerare libera<\/a> test, care eviden\u021biaz\u0103 acelea\u0219i rezonan\u021be pe m\u0103sur\u0103 ce ma\u0219ina \u00eens\u0103\u0219i \u00ee\u0219i baleiaz\u0103 tura\u021bia.<\/p>\n<h3>Diagnostic structural<\/h3>\n<ul>\n<li>Identifica\u021bi componentele fragile sau prea flexibile.<\/li>\n<li>Localiza\u021bi <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/looseness\/\">sl\u0103bite<\/a> sau structuri fisurate, care deplaseaz\u0103 sau divizeaz\u0103 v\u00e2rfurile preconizate.<\/li>\n<li>Verifica\u021bi funda\u021bia sau montarea <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/stiffness\/\">rigiditate<\/a>.<\/li>\n<li>Prezenta\u021bi o compara\u021bie \u201e\u00eenainte \u0219i dup\u0103\u201d pentru a valida o modificare structural\u0103.<\/li>\n<\/ul>\n<h3>Testare modal\u0103<\/h3>\n<ul>\n<li>Determina\u021bi simultan frecven\u021bele naturale, formele modale \u0219i amortizarea.<\/li>\n<li>Verifica\u021bi modelele cu elemente finite \u00een raport cu datele m\u0103surate.<\/li>\n<li>Optimizarea unui proiect structural.<\/li>\n<\/ul>\n<h2>5. Interpretare<\/h2>\n<h3>Identificarea frecven\u021belor naturale<\/h3>\n<ul>\n<li>V\u00e2rfurile din spectrul de r\u0103spuns la impact reprezint\u0103 frecven\u021bele naturale.<\/li>\n<li>V\u00e2rfurile ascu\u021bite indic\u0103 o amortizare redus\u0103 \u2014 \u0219i, prin urmare, o posibil\u0103 problem\u0103 de rezonan\u021b\u0103.<\/li>\n<li>V\u00e2rfurile largi indic\u0103 o amortizare ridicat\u0103, \u00een cazul c\u0103reia rezonan\u021ba este mai pu\u021bin critic\u0103.<\/li>\n<li>Prezen\u021ba mai multor v\u00e2rfuri indic\u0103 existen\u021ba mai multor moduri.<\/li>\n<\/ul>\n<h3>Evaluarea riscului de rezonan\u021b\u0103<\/h3>\n<ul>\n<li>Dac\u0103 o frecven\u021b\u0103 natural\u0103 se \u00eencadreaz\u0103 \u00een intervalul de aproximativ \u00b120% fa\u021b\u0103 de o frecven\u021b\u0103 de func\u021bionare, exist\u0103 riscul apari\u021biei rezonan\u021bei.<\/li>\n<li>Dac\u0103 sunt bine separate \u2014 la o distan\u021b\u0103 de peste aproximativ 30% \u2014 situa\u021bia este, \u00een general, sigur\u0103.<\/li>\n<li>\u00cen\u0103l\u021bimea v\u00e2rfului indic\u0103 nivelul de amplificare la care ne putem a\u0219tepta.<\/li>\n<\/ul>\n<h3>Estimarea amortiz\u0103rii<\/h3>\n<ul>\n<li>M\u0103sura\u021bi l\u0103\u021bimea v\u00e2rfului la jum\u0103tatea \u00een\u0103l\u021bimii sale maxime.<\/li>\n<li>Calcula\u021bi <a href=\"https:\/\/vibromera.eu\/ro\/calculators\/damping-ratio-calculator\/\">raportul de amortizare<\/a> din acea l\u0103\u021bime de band\u0103 (metoda puterii la jum\u0103tate).<\/li>\n<li>Alternativ, se poate deduce din rata de atenuare a oscila\u021biei de amortizare \u00een domeniul timpului.<\/li>\n<\/ul>\n<h2>6. Avantaje \u0219i limit\u0103ri<\/h2>\n<p>Atractivitatea testului de lovire const\u0103 \u00een caracterul s\u0103u extrem de practic, dar acesta implic\u0103 anumite compromisuri pe care un analist ar trebui s\u0103 le ia \u00een considerare.<\/p>\n<h3>Avantaje<\/h3>\n<ul>\n<li><strong>Simplitate:<\/strong> echipament minim, instalare \u00een c\u00e2teva minute, nu este nevoie de alimentare electric\u0103 pentru excita\u021bie \u0219i poate fi realizat aproape oriunde \u0219i oric\u00e2nd.<\/li>\n<li><strong>Excita\u021bie \u00een band\u0103 larg\u0103:<\/strong> o singur\u0103 lovitur\u0103 exciteaz\u0103 simultan o gam\u0103 larg\u0103 de frecven\u021be, astfel \u00eenc\u00e2t toate modurile sunt identificate \u00eentr-un singur test \u2014 mult mai rapid dec\u00e2t \u00een cazul metodelor cu und\u0103 sinusoidal\u0103 variabil\u0103.<\/li>\n<li><strong>Practicitatea \u00een teren:<\/strong> nu este nevoie s\u0103 se transporte utilaje de mari dimensiuni, func\u021bioneaz\u0103 pe utilajele deja instalate \u0219i este suficient de rapid pentru opera\u021biunile de rutin\u0103 <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/troubleshooting\/\">depanare<\/a>.<\/li>\n<\/ul>\n<h3>Limit\u0103ri<\/h3>\n<ul>\n<li><strong>Repetabilitate:<\/strong> for\u021ba de impact variaz\u0103 de la o lovitur\u0103 la alta; calcularea mediei mai multor lovituri este util\u0103, iar un ciocan echipat cu senzori asigur\u0103 o for\u021b\u0103 constant\u0103 \u0219i m\u0103surat\u0103.<\/li>\n<li><strong>Spectrul de for\u021b\u0103:<\/strong> Spectrul impactului depinde de masa ciocanului \u0219i de duritatea v\u00e2rfului acestuia \u2014 un v\u00e2rf moale transfer\u0103 mai mult\u0103 energie c\u0103tre frecven\u021bele joase, iar unul dur c\u0103tre frecven\u021bele \u00eenalte \u2014 astfel \u00eenc\u00e2t un singur ciocan s-ar putea s\u0103 nu excite toate frecven\u021bele \u00een mod egal.<\/li>\n<li><strong>Niveluri reduse de for\u021b\u0103:<\/strong> testul nu poate reproduce condi\u021biile de func\u021bionare la for\u021be mari, astfel \u00eenc\u00e2t neliniarit\u0103\u021bile dependente de sarcin\u0103 pot r\u0103m\u00e2ne neexprimate, ceea ce \u00eel face nepotrivit pentru testarea r\u0103spunsului la niveluri ridicate.<\/li>\n<\/ul>\n<h2>7. Testarea prin lovire \u00een cadrul lucr\u0103rilor practice la rotor<\/h2>\n<p>Testarea prin lovire \u0219i rotorul <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/echilibrare\/\">echilibrare<\/a> sunt str\u00e2ns legate \u00een practic\u0103, deoarece o structur\u0103 care rezoneaz\u0103 la o frecven\u021b\u0103 apropiat\u0103 de tura\u021bia de func\u021bionare va mima \u2014 sau va amplifica puternic \u2014 o aparent\u0103 <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/unbalance\/\">dezechilibru<\/a>. \u00cenainte de a trece la corecturi, un inginer trebuie s\u0103 se asigure c\u0103 structura portant\u0103 nu se afl\u0103 \u00een rezonan\u021b\u0103; \u00een caz contrar, <a href=\"https:\/\/vibromera.eu\/ro\/glossary\/phase\/\">faz\u0103<\/a> iar valorile de amplitudine utilizate pentru echilibrare vor fi distorsionate \u00een apropierea acelei zone critice. Un instrument portabil cu dou\u0103 canale, precum <a href=\"https:\/\/vibromera.eu\/ro\/produs\/balanset-1\/\">Balanset-1A<\/a> m\u0103soar\u0103 amplitudinea \u0219i faza de 1\u00d7 necesare pentru echilibrarea pe un singur plan \u0219i pe dou\u0103 planuri, iar aceia\u0219i accelerometri pot \u00eenregistra un r\u0103sunat \u00een urma unui test de lovire pentru a verifica dac\u0103 frecven\u021ba natural\u0103 a unui soclu sau a unei pl\u0103ci de baz\u0103 nu se suprapune cu viteza de func\u021bionare. Pe scurt, testul de impact este o metod\u0103 simpl\u0103, dar eficient\u0103, de a cartografia frecven\u021bele naturale \u0219i rezonan\u021bele structurale folosind doar un ciocan \u0219i un analizor \u2014 un instrument esen\u021bial de depanare pentru diagnosticarea rezonan\u021bei, validarea modific\u0103rilor \u0219i efectuarea unor analize modale rapide f\u0103r\u0103 echipamente de testare specializate.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/ro\/glossary\/\">\u2190 \u00cenapoi la indexul principal<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>\u00cenv\u0103\u021ba\u021bi despre testarea la impact, lovirea structurilor cu ciocane pentru a excita frecven\u021bele naturale, identificarea rezonan\u021belor \u0219i efectuarea analizelor modale f\u0103r\u0103 echipamente specializate de vibra\u021bii.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[114,109],"tags":[],"class_list":["post-66","glossary","type-glossary","status-publish","hentry","category-analysis","category-glossary"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/glossary\/66","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/glossary\/66\/revisions"}],"predecessor-version":[{"id":101275,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/glossary\/66\/revisions\/101275"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/media?parent=66"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/categories?post=66"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/ro\/wp-json\/wp\/v2\/tags?post=66"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}