{"id":165,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/mode-shape\/"},"modified":"2026-05-23T23:04:15","modified_gmt":"2026-05-23T23:04:15","slug":"mode-shape","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/sl\/glossary\/mode-shape\/","title":{"rendered":"Kaj je oblika moda v dinamiki rotorja?"},"content":{"rendered":"<h1>Razumevanje oblik modov v dinamiki rotorja<\/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\/sl\/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\/sl\/product\/balanset-1\/\" title=\"Prenosni balanser in analizator vibracij 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=\"Prenosni uravnote\u017enik in analizator vibracij Balanset-1A v popolnem kompletu\" 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\/sl\/product-category\/devices\/\" rel=\"tag\">Naprave<\/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\/sl\/product\/balanset-1\/\" title=\"Prenosni balanser in analizator vibracij Balanset-1A\">Prenosni balanser in analizator vibracij 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> + DDV (\u010de je primerno)<\/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=\"\/sl\/wp-json\/wp\/v2\/glossary\/165?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 v ko\u0161arico\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj v ko\u0161arico\" 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=\"\/sl\/wp-json\/wp\/v2\/glossary\/165?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 v ko\u0161arico: \u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d je bil dodan v va\u0161o ko\u0161arico\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj v ko\u0161arico<\/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\/sl\/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\/sl\/product\/vibration-sensor\/\" title=\"Senzor vibracij\">\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=\"Senzor vibracij Balanset-1A od blizu\" 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\/sl\/product-category\/parts\/\" rel=\"tag\">Deli<\/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\/sl\/product\/vibration-sensor\/\" title=\"Senzor vibracij\">Senzor vibracij<\/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> + DDV (\u010de je primerno)<\/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=\"\/sl\/wp-json\/wp\/v2\/glossary\/165?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 v ko\u0161arico\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj v ko\u0161arico\" 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=\"\/sl\/wp-json\/wp\/v2\/glossary\/165?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 v ko\u0161arico: \u201cVibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u201cVibration sensor\u201d je bil dodan v va\u0161o ko\u0161arico\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj v ko\u0161arico<\/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\/sl\/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\/sl\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Opti\u010dni senzor (laserski tahometer)\">\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\u010dni senzor (laserski tahometer)\" 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\/sl\/product-category\/parts\/\" rel=\"tag\">Deli<\/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\/sl\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Opti\u010dni senzor (laserski tahometer)\">Opti\u010dni senzor (laserski tahometer)<\/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> + DDV (\u010de je primerno)<\/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=\"\/sl\/wp-json\/wp\/v2\/glossary\/165?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 v ko\u0161arico\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj v ko\u0161arico\" 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=\"\/sl\/wp-json\/wp\/v2\/glossary\/165?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 v ko\u0161arico: \u201cOptical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u201cOptical Sensor (Laser Tachometer)\u201d je bil dodan v va\u0161o ko\u0161arico\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj v ko\u0161arico<\/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\/sl\/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\/sl\/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=\"Komplet za uravnote\u017eenje rotorjev Vibromera: torba za prena\u0161anje, ve\u010dkanalni pretvornik signala, ro\u010dni analizator, magnetna podlaga, senzorji vibracij in spiralni kabli.\" 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\/sl\/product-category\/devices\/\" rel=\"tag\">Naprave<\/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\/sl\/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> + DDV (\u010de je primerno)<\/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=\"\/sl\/wp-json\/wp\/v2\/glossary\/165?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 v ko\u0161arico\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj v ko\u0161arico\" 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=\"\/sl\/wp-json\/wp\/v2\/glossary\/165?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 v ko\u0161arico: \u201cBalanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u201cBalanset-4\u201d je bil dodan v va\u0161o ko\u0161arico\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj v ko\u0161arico<\/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\/sl\/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\/sl\/product\/magnet-stand\/\" title=\"Magnetno stojalo 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=\"Magnetna osnova.\" 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\/sl\/product-category\/parts\/\" rel=\"tag\">Deli<\/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\/sl\/product\/magnet-stand\/\" title=\"Magnetno stojalo Insize-60-kgf\">Magnetno stojalo 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> + DDV (\u010de je primerno)<\/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=\"\/sl\/wp-json\/wp\/v2\/glossary\/165?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 v ko\u0161arico\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj v ko\u0161arico\" 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=\"\/sl\/wp-json\/wp\/v2\/glossary\/165?add-to-cart=1852\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1852\" 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title=\"Odsevni trak\">\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=\"Odsevni trak\" 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\/sl\/product-category\/parts\/\" rel=\"tag\">Deli<\/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\/sl\/product\/reflective-tape\/\" title=\"Odsevni trak\">Odsevni trak<\/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> + DDV (\u010de je primerno)<\/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=\"\/sl\/wp-json\/wp\/v2\/glossary\/165?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 v ko\u0161arico\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj v ko\u0161arico\" 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=\"\/sl\/wp-json\/wp\/v2\/glossary\/165?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 v ko\u0161arico: \u201cReflective tape\u201d\" rel=\"nofollow\" data-success_message=\"\u201cReflective tape\u201d je bil dodan v va\u0161o ko\u0161arico\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj v ko\u0161arico<\/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\/sl\/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\/sl\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dinami\u010dni uravnote\u017eevalnik &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=\"Vsebina kompleta Balanset-1A z vmesni\u0161ko enoto, senzorji, tahometrom in dodatno opremo\" 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\/sl\/product-category\/devices\/\" rel=\"tag\">Naprave<\/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\/sl\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dinami\u010dni uravnote\u017eevalnik &quot;Balanset-1A&quot; OEM\">Dinami\u010dni uravnote\u017eevalnik \"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> + DDV (\u010de je primerno)<\/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=\"\/sl\/wp-json\/wp\/v2\/glossary\/165?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 v ko\u0161arico\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Dodaj v ko\u0161arico\" 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=\"\/sl\/wp-json\/wp\/v2\/glossary\/165?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 v ko\u0161arico: \u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"\u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d je bil dodan v va\u0161o ko\u0161arico\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Dodaj v ko\u0161arico<\/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>oblika na\u010dina<\/strong> \u2014 imenovan tudi vibracijski ali lastni na\u010din \u2014 je zna\u010dilen prostorski vzorec deformacije, ki ga <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/rotor\/\">rotor<\/a> vibracijski sistem prevzame, ko vibrira na eni od svojih <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/natural-frequency\/\">lastne frekvence<\/a>. Opisuje relativno amplitudo in <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/phase\/\">faza<\/a> premika v vsaki to\u010dki vzdol\u017e gredi, ko sistem na tej to\u010dki prosto niha <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/resonance\/\">resonan\u010dni<\/a> frekvenco. Vsaka oblika modusa je povezana z eno lastno frekvenco, skupaj pa jih niz tvori popoln opis dinami\u010dnega obna\u0161anja sistema. Razumevanje oblik modusov je klju\u010dnega pomena za <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/rotor-dynamics\/\">dinamika rotorja<\/a>, ker dolo\u010dajo, kje <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/critical-speed\/\">kriti\u010dne hitrosti<\/a> do \u010desa pride in kako se rotor odziva na sile, ki ga vzbujajo.<\/p>\n<h2>1. Opredelitev in fizikalni pomen<\/h2>\n<p>Ko se konstrukcija vzbudi in prepusti lastnim vibracijam, se ne giblje naklju\u010dno. Ule\u017ee se v majhno \u0161tevilo zna\u010dilnih vzorcev, od katerih vsak niha s svojo frekvenco, prav tako kot struna kitare, ki oddaja osnovni ton in vrsto alikvotnih tonov. Za rotor so ti prednostni vzorci njegove modalne oblike, frekvence, pri katerih se pojavijo, pa so njegove lastne frekvence. Nevarnost pri rotacijskih strojih je, da se lahko vrtilna hitrost rotorja ujame z eno od teh lastnih frekvenc; ko se to zgodi, se ustrezna modalna oblika prenese v <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/resonance\/\">resonanca<\/a> in amplituda vibracij strmo naraste. \u010ce in\u017eenir vnaprej pozna te oblike, ve, kje se bo rotor najbolj upogibal, kje se bo komajda premaknil in kje je zato treba ukrepati.<\/p>\n<h2>2. Vizualizacija obliknih modov<\/h2>\n<p>Modalne oblike si najbolje predstavljamo kot krivulje upogiba rotorske gredi.<\/p>\n<h3>Prvi na\u010din (osnovni)<\/h3>\n<ul>\n<li><strong>Oblika:<\/strong> preprost lok ali lok, podoben skakalni vrvi z enim izbo\u010denjem.<\/li>\n<li><strong>Vozli\u0161\u010dne to\u010dke:<\/strong> notranjih to\u010dk ni \u2013 gred je podprta na le\u017eajih, ki delujejo kot pribli\u017ene to\u010dke.<\/li>\n<li><strong>Najve\u010dji upogib:<\/strong> obi\u010dajno pribli\u017eno na sredini razpona med le\u017eaji.<\/li>\n<li><strong>Pogostost:<\/strong> najni\u017eja lastna frekvenca sistema.<\/li>\n<li><strong>Kriti\u010dna hitrost:<\/strong> Prva kriti\u010dna hitrost ustreza temu na\u010dinu.<\/li>\n<\/ul>\n<h3>Drugi na\u010din<\/h3>\n<ul>\n<li><strong>Oblika:<\/strong> S-krivulja z enim vozli\u0161\u010dem na sredini.<\/li>\n<li><strong>Vozli\u0161\u010dne to\u010dke:<\/strong> eno notranje vozli\u0161\u010de, kjer je upogib gredi enak ni\u010d.<\/li>\n<li><strong>Najve\u010dji upogib:<\/strong> na dveh mestih, po eno na vsaki strani vozli\u0161\u010da.<\/li>\n<li><strong>Pogostost:<\/strong> vi\u0161ja od prvega modusa, pogosto trikrat do petkrat vi\u0161ja od njegove frekvence.<\/li>\n<li><strong>Kriti\u010dna hitrost:<\/strong> druga kriti\u010dna hitrost.<\/li>\n<\/ul>\n<h3>Tretji na\u010din in vi\u0161je<\/h3>\n<ul>\n<li><strong>Oblika:<\/strong> vse bolj zapleteni valovni vzorci.<\/li>\n<li><strong>Vozli\u0161\u010dne to\u010dke:<\/strong> dve za tretji na\u010din, tri za \u010detrti in tako naprej.<\/li>\n<li><strong>Pogostost:<\/strong> vse vi\u0161je.<\/li>\n<li><strong>Prakti\u010dni pomen:<\/strong> ponavadi velja le za zelo visoke hitrosti ali zelo <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/flexible-rotor\/\">fleksibilni rotorji<\/a>.<\/li>\n<\/ul>\n<h2>3. Klju\u010dne zna\u010dilnosti modalnih oblik<\/h2>\n<h3>Ortogonalnost<\/h3>\n<p>Razli\u010dne modalne oblike so matemati\u010dno ortogonalne \u2013 to pomeni, da so neodvisne. V idealnem linearnem sistemu energija, vnesena pri eni modalni frekvenci, ne vzbudi drugih, kar in\u017eenirjem omogo\u010da, da vsak na\u010din obravnavajo in popravijo lo\u010deno.<\/p>\n<h3>Normalizacija<\/h3>\n<p>Modalne oblike so obi\u010dajno normalizirane, pri \u010demer je najve\u010dja deformacija prera\u010dunana na referen\u010dno vrednost (pogosto 1,0), da se oblike lahko med seboj primerjajo. Dejanska velikost deformacije med obratovanjem je odvisna od amplitude obremenitve in sistema <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/damping\/\">du\u0161enje<\/a>.<\/p>\n<h3>Vozli\u0161\u010da<\/h3>\n<p><strong>Vozli\u0161\u010da<\/strong> so to\u010dke vzdol\u017e gredi, kjer je deformacija med vibracijami v tem na\u010dinu enaka ni\u010d. \u0160tevilo notranjih vozli\u0161\u010d je enako \u0161tevilu na\u010dina minus ena:<\/p>\n<ul>\n<li>prvi na\u010din: 0 notranjih vozli\u0161\u010d;<\/li>\n<li>drugi na\u010din: 1 notranje vozli\u0161\u010de;<\/li>\n<li>tretji na\u010din: 2 notranja vozli\u0161\u010da.<\/li>\n<\/ul>\n<p>A <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/nodal-point\/\">vozli\u0161\u010de<\/a> je polo\u017eaj mirovanja v dolo\u010denem na\u010dinu \u2013 dejstvo, ki neposredno vpliva tako na namestitev senzorjev kot na uravnote\u017eenje.<\/p>\n<h3>Antinodne to\u010dke<\/h3>\n<p><strong>Antinodi<\/strong> so to\u010dke najve\u010djega upogiba v obliki modusa. To so to\u010dke z najve\u010djo upogibno napetostjo in zato najverjetnej\u0161a mesta za utrujenost materiala in po\u0161kodbe med resonan\u010dnimi vibracijami.<\/p>\n<h2>4. Zakaj so modne oblike pomembne<\/h2>\n<h3>Napoved kriti\u010dne hitrosti<\/h3>\n<p>Vsaka oblika na\u010dina ustreza <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/critical-speed\/\">kriti\u010dna hitrost<\/a>. Ko se delovna hitrost ujame z lastno frekvenco, se ta na\u010din vzbudi, rotor se upogne v vzorec modalne oblike in <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/unbalance\/\">neuravnote\u017eenost<\/a> sile ustvarjajo najve\u010dje vibracije tam, kjer se ujemajo z antinodami. <a href=\"https:\/\/vibromera.eu\/sl\/calculators\/rotor-critical-speed\/\">kalkulator kriti\u010dne hitrosti rotorja<\/a> omogo\u010da hiter prvi pregled, kje se te hitrosti uvr\u0161\u010dajo v okviru delovnega obmo\u010dja.<\/p>\n<h3>Strategija uravnote\u017eenja<\/h3>\n<p>Oblike nihanja usmerjajo izbiro <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/uravnotezenje\/\">uravnote\u017eenje<\/a> pristop:<\/p>\n<ul>\n<li><strong><a href=\"https:\/\/vibromera.eu\/sl\/glossary\/rigid-rotor\/\">Togi rotorji<\/a><\/strong> deluje pod prvo kriti\u010dno hitrostjo; preprosto <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/two-plane-balancing\/\">uravnote\u017eenje v dveh ravninah<\/a> zadostuje.<\/li>\n<li><strong><a href=\"https:\/\/vibromera.eu\/sl\/glossary\/flexible-rotor\/\">Fleksibilni rotorji<\/a><\/strong> presega prvo kriti\u010dno vrednost in bo morda potrebno <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/modal-balancing\/\">modalno uravnote\u017eenje<\/a> namenjene dolo\u010denim oblikam nihanja.<\/li>\n<li><strong>Polo\u017eaj ravnine korekcije<\/strong> je naju\u010dinkovitej\u0161a v antinodih, kjer ima dolo\u010dena masa najve\u010dji vpliv na mod.<\/li>\n<li><strong>Lokacije vozli\u0161\u010d<\/strong> so nasprotni primeri: <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/correction-weight\/\">korekcijska te\u017ea<\/a> ute\u017e, name\u0161\u010dena na vozli\u0161\u010du, skoraj nima vpliva na ta mod.<\/li>\n<\/ul>\n<h3>Analiza napak<\/h3>\n<p>Oblike nihanja pojasnjujejo tudi, kje se pojavijo po\u0161kodbe. Utrujenostne razpoke se obi\u010dajno pojavijo v antinodih, kjer je upogibna napetost najve\u010dja; po\u0161kodbe le\u017eajev so verjetnej\u0161e tam, kjer je upogib najve\u010dji; in <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/rotor-rub\/\">drgne<\/a> do tega pride, kadar se rotor zaradi upogiba gredi pribli\u017ea nepremi\u010dnim delom.<\/p>\n<h2>5. Dolo\u010danje oblik nihanja<\/h2>\n<h3>Analiti\u010dne metode<\/h3>\n<h4>Analiza kon\u010dnih elementov (FEA)<\/h4>\n<ul>\n<li>Najpogostej\u0161i sodobni pristop.<\/li>\n<li>Rotor je modeliran kot veriga grednih elementov z maso, togostjo in vztrajnostjo.<\/li>\n<li>Analiza lastnih vrednosti prika\u017ee lastne frekvence in ustrezne oblike nihanja.<\/li>\n<li>Lahko upo\u0161teva kompleksno geometrijo, lastnosti materialov, zna\u010dilnosti le\u017eajev<\/li>\n<\/ul>\n<h4>Metoda prenosne matrike<\/h4>\n<ul>\n<li>Klasi\u010dna analiti\u010dna tehnika.<\/li>\n<li>Rotor je razdeljen na postaje z znanimi lastnostmi.<\/li>\n<li>Prenosne matrike prena\u0161ajo upogib in silo vzdol\u017e gredi.<\/li>\n<li>U\u010dinkovito za relativno preproste konfiguracije gredi<\/li>\n<\/ul>\n<h4>Teorija neprekinjenih nosilcev<\/h4>\n<ul>\n<li>Za enotne gredi obstajajo analiti\u010dne re\u0161itve v zaprti obliki.<\/li>\n<li>Za preproste primere podaja natan\u010dne izraze.<\/li>\n<li>Uporabno za pou\u010devanje in za predhodno na\u010drtovanje.<\/li>\n<\/ul>\n<h3>Eksperimentalne metode<\/h3>\n<h4>Modalno presku\u0161anje (presku\u0161anje udarcev)<\/h4>\n<ul>\n<li>Po gredi na ve\u010d mestih udarite z instrumentiranim kladivom \u2014 <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/bump-test\/\">preskus udarca<\/a>.<\/li>\n<li>Odgovor izmerite z <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/accelerometer\/\">merilniki pospe\u0161ka<\/a> na ve\u010d mestih.<\/li>\n<li>Nastala <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/frequency-response-function\/\">funkcije frekven\u010dnega odziva<\/a> razkrivajo lastne frekvence.<\/li>\n<li>Oblika nihanja se dolo\u010di iz relativnih amplitud odziva in faz.<\/li>\n<\/ul>\n<h4>Merjenje oblike delovne deformacije (ODS)<\/h4>\n<ul>\n<li>Med obi\u010dajnim delovanjem merite vibracije na ve\u010d mestih.<\/li>\n<li>V bli\u017eini kriti\u010dne hitrosti <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/ods-analysis\/\">obliko delovne deformacije<\/a> pribli\u017eno odra\u017ea obliko modusa.<\/li>\n<li>Postopek se lahko opravi, ne da bi bilo treba odstraniti rotor.<\/li>\n<li>Za to so potrebni bodisi \u0161tevilni senzorji bodisi tehnika premi\u010dnega senzorja.<\/li>\n<\/ul>\n<h4>Nizi senzorjev za merjenje bli\u017eine<\/h4>\n<ul>\n<li>Brezkontaktno <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/proximity-probe\/\">bli\u017einske sonde<\/a> na ve\u010d mestih vzdol\u017e osi.<\/li>\n<li>Neposredno izmerite upogib gredi.<\/li>\n<li>Med <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/coastdown-analysis\/\">zagon ali zaviranje<\/a>, vzorec upogiba razkriva oblike nihanja.<\/li>\n<li>Najnatan\u010dnej\u0161a eksperimentalna metoda za stroje, ki so dejansko v delovanju.<\/li>\n<\/ul>\n<h2>6. Kaj vpliva na obliko modusa<\/h2>\n<h3>U\u010dinki togosti le\u017eaja<\/h3>\n<ul>\n<li><strong>Togi le\u017eaji:<\/strong> na mestih le\u017eajev se oblikujejo vozli\u0161\u010da, oblike nihanja pa so bolj omejene.<\/li>\n<li><strong>Prilagodljiva le\u017eaja:<\/strong> na le\u017eajih pride do znatnih premikov, oblike nihanja pa so bolj razpr\u0161ene.<\/li>\n<li><strong>Asimetri\u010dna le\u017eaja:<\/strong> oblike nihanja se razlikujejo v vodoravni in navpi\u010dni smeri.<\/li>\n<\/ul>\n<h3>Odvisnost od hitrosti<\/h3>\n<p>Pri vrte\u010dih gredih se lahko oblike nihanja spreminjajo s hitrostjo zaradi:<\/p>\n<ul>\n<li><strong><a href=\"https:\/\/vibromera.eu\/sl\/glossary\/gyroscopic-effect\/\">\u017diroskopski u\u010dinki<\/a>:<\/strong> ti razcepijo na\u010dine nihanja na precesijo naprej in nazaj.<\/li>\n<li><strong>Spremembe togosti le\u017eaja:<\/strong> s teko\u010dinskim filmom <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/journal-bearing\/\">drsni le\u017eaji<\/a> se s pove\u010danjem hitrosti otrdi.<\/li>\n<li><strong>Centrifugalno oja\u010danje:<\/strong> Pri zelo visokih hitrostih centrifugalne sile pove\u010dajo togost vitkih elementov.<\/li>\n<\/ul>\n<h3>Vrtin\u010denje naprej proti vrtin\u010denju nazaj<\/h3>\n<p>V rotacijskih sistemih lahko vsak na\u010din obstaja v dveh oblikah. V <strong>vrtenje naprej<\/strong> gred <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/orbit\/\">orbita<\/a> se vrti v isti smeri kot sam gred; v <strong>vrtenje nazaj<\/strong> se vrti v nasprotno smer. Zaradi \u017eiroskopskih u\u010dinkov se pojavljata razli\u010dici naprej in nazaj z razli\u010dnimi frekvencami \u2013 ta frekven\u010dni razpon, ki ga <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/campbell-diagram\/\">Campbellov diagram<\/a> se jasno prika\u017ee.<\/p>\n<h2>7. Prakti\u010dne uporabe<\/h2>\n<h3>Optimizacija zasnove<\/h3>\n<p>In\u017eenirji uporabljajo analizo modalnih oblik za namestitev le\u017eajev tako, da se antinodi ne nahajajo na mestih le\u017eajev, za dolo\u010ditev premerov gredi, ki kriti\u010dne hitrosti prestavijo izven obmo\u010dja delovanja, za izbiro togosti le\u017eajev, ki ugodno vpliva na modalni odziv, ter za dodajanje ali odvzemanje mase na strate\u0161kih to\u010dkah, da se spremenijo lastne frekvence.<\/p>\n<h3>Odpravljanje te\u017eav<\/h3>\n<p>Ko se pojavijo prekomerne vibracije, analitik primerja delovno hitrost s predvidenimi kriti\u010dnimi hitrostmi, ugotovi, ali stroj deluje blizu resonan\u010dne frekvence, dolo\u010di, kateri na\u010din se vzbudi, in izbere prilagoditev, ki problemati\u010dni na\u010din premakne stran od delovne hitrosti.<\/p>\n<h3>Modalno uravnote\u017eenje<\/h3>\n<p><a href=\"https:\/\/vibromera.eu\/sl\/glossary\/modal-balancing\/\">Modalno uravnote\u017eenje<\/a> Uravnote\u017eenje pro\u017enih rotorjev je v celoti odvisno od poznavanja oblik nihanja: vsak mod se uravnote\u017ei neodvisno, korekcijske ute\u017ei so razporejene tako, da ustrezajo obliki nihanja, ute\u017ei, name\u0161\u010dene na vozli\u0161\u010dih, pa na ta mod ne vplivajo, optimalne korekcijske ravnine pa le\u017eijo na antinodih.<\/p>\n<h2>8. Vizualizacija in komunikacija<\/h2>\n<p>Oblike nihanja so prikazane v ve\u010d oblikah - kot 2D-krivulje bo\u010dnega upogiba glede na osni polo\u017eaj; animacije nihajo\u010de gredi; 3D-upodobitve za kompleksne ali sklopljene geometrije; barvne karte, ki prikazujejo velikost upogiba; ter tabelari\u010dni podatki s \u0161tevil\u010dnimi vrednostmi upogiba na posameznih postajah.<\/p>\n<h2>9. Sklopljene in kompleksne oblike nihanja<\/h2>\n<h3>Sklopitev pre\u010dnega in torzijskega nihanja<\/h3>\n<p>V nekaterih sistemih se upogibanje (bo\u010dno) in zvijanje (<a href=\"https:\/\/vibromera.eu\/sl\/glossary\/torsional-vibration\/\">Torzijsko<\/a>) se gibanja medsebojno sklapljajo - to je zna\u010dilno za neokrogle preseke ali za obremenitve z zamikom. Oblika nihanja tako vklju\u010duje bo\u010dni upogib in kotno zvijanje, zato je potrebna ustrezno zahtevnej\u0161a analiza.<\/p>\n<h3>Sklopljeni na\u010dini upogibanja<\/h3>\n<p>V sistemih z asimetri\u010dno togostjo se vodoravni in navpi\u010dni modusi sklapljajo; oblike nihanja postanejo elipti\u010dne namesto ravninske. To je pogosto tam, kjer so le\u017eaji ali podpore anizotropni.<\/p>\n<h2>10. Standardi in smernice<\/h2>\n<p>Analizo oblik nihanja obravnava ve\u010d standardov. <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/api-684\/\">API 684<\/a> vsebuje smernice za analizo dinamike rotorja, vklju\u010dno z izra\u010dunom oblik nihanja; <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/iso-21940-11\/\">ISO 21940-11<\/a> (sodobni naslednik standarda ISO 1940-1) obravnava modalne oblike v okviru uravnote\u017eenja pro\u017enih rotorjev; nem\u0161ki standard VDI 3839 pa obravnava modalne vidike pri pro\u017enih rotorjih.<\/p>\n<h2>11. Povezava z Campbellovimi diagrami in merjenjem na terenu<\/h2>\n<p>A <a href=\"https:\/\/vibromera.eu\/sl\/glossary\/campbell-diagram\/\">Campbellov diagram<\/a> prikazuje lastne frekvence glede na hitrost, pri \u010demer vsaka krivulja predstavlja en mod. Oblika nihanja za vsako krivuljo dolo\u010da, kako mo\u010dno neuravnote\u017eenost na razli\u010dnih mestih vzbuja ta mod, kje naj bodo senzorji za najve\u010djo ob\u010dutljivost in katera vrsta korekcije uravnote\u017eenja bo naju\u010dinkovitej\u0161a. Na terenu je prakti\u010dna povezava med oblikami nihanja in korektivnim ukrepom analizator na mizi: ko analiza oblik nihanja opredeli antinode kot u\u010dinkovite korekcijske ravnine, prenosni dvo-kanalni instrument, kot je <a href=\"https:\/\/vibromera.eu\/sl\/izdelek\/balanset-1\/\">Balanset-1A<\/a> izmeri amplitudo 1\u00d7 in fazo na le\u017eajih ter izra\u010duna korekcijske ute\u017ei, kar in\u017eenirju omogo\u010da ukrepanje prav na ravninah, ki jih je izpostavila oblika nihanja. Tak\u0161no razumevanje oblik nihanja spremeni dinamiko rotorja iz abstraktne matemati\u010dne napovedi v fizi\u010dni vpogled v obna\u0161anje resni\u010dnih strojev - kar omogo\u010da bolj\u0161o zasnovo, natan\u010dnej\u0161e odpravljanje napak in u\u010dinkovitej\u0161e uravnote\u017eenje za vse vrste vrte\u010de se opreme.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/sl\/glossary\/\">\u2190 Nazaj na glavno kazalo<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Spoznajte oblike modov, zna\u010dilne vzorce odklona vrte\u010dih se gredi pri naravnih frekvencah, ki so bistveni za razumevanje kriti\u010dnih hitrosti in obna\u0161anja fleksibilnega rotorja.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,111],"tags":[],"class_list":["post-165","glossary","type-glossary","status-publish","hentry","category-glossary","category-rotor-balancing"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/sl\/wp-json\/wp\/v2\/glossary\/165","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/sl\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/sl\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/sl\/wp-json\/wp\/v2\/glossary\/165\/revisions"}],"predecessor-version":[{"id":101438,"href":"https:\/\/vibromera.eu\/sl\/wp-json\/wp\/v2\/glossary\/165\/revisions\/101438"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/sl\/wp-json\/wp\/v2\/media?parent=165"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/sl\/wp-json\/wp\/v2\/categories?post=165"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/sl\/wp-json\/wp\/v2\/tags?post=165"}],"curies":[{"name":"delovni list","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}