{"id":310,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/whirl\/"},"modified":"2026-05-23T22:40:29","modified_gmt":"2026-05-23T22:40:29","slug":"whirl","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/cs\/glossary\/whirl\/","title":{"rendered":"Co je to v\u00edr a bi\u010d v dynamice rotoru?"},"content":{"rendered":"<h1>Pochopen\u00ed viru rotoru a bi\u010dov\u00e1n\u00ed<\/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\/cs\/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\/cs\/product\/balanset-1\/\" title=\"P\u0159enosn\u00fd vyva\u017eova\u010d a analyz\u00e1tor vibrac\u00ed 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=\"Kompletn\u00ed sada p\u0159enosn\u00e9ho vyva\u017eova\u010de a analyz\u00e1toru vibrac\u00ed Balanset-1A\" 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\/cs\/product-category\/devices\/\" rel=\"tag\">Za\u0159\u00edzen\u00ed<\/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\/cs\/product\/balanset-1\/\" title=\"P\u0159enosn\u00fd vyva\u017eova\u010d a analyz\u00e1tor vibrac\u00ed Balanset-1A\">P\u0159enosn\u00fd vyva\u017eova\u010d a analyz\u00e1tor vibrac\u00ed 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> + DPH (pokud se uplat\u0148uje)<\/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=\"\/cs\/wp-json\/wp\/v2\/glossary\/310?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=\"P\u0159idat do ko\u0161\u00edku\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"P\u0159idat do ko\u0161\u00edku\" 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=\"\/cs\/wp-json\/wp\/v2\/glossary\/310?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=\"P\u0159idat do ko\u0161\u00edku: \u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d byl p\u0159id\u00e1n do ko\u0161\u00edku\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">P\u0159idat do ko\u0161\u00edku<\/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\/cs\/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\/cs\/product\/vibration-sensor\/\" title=\"Sn\u00edma\u010d vibrac\u00ed\">\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=\"Sn\u00edma\u010d vibrac\u00ed Balanset-1A zbl\u00edzka\" 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\/cs\/product-category\/parts\/\" rel=\"tag\">D\u00edly<\/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\/cs\/product\/vibration-sensor\/\" title=\"Sn\u00edma\u010d vibrac\u00ed\">Sn\u00edma\u010d vibrac\u00ed<\/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> + DPH (pokud se uplat\u0148uje)<\/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=\"\/cs\/wp-json\/wp\/v2\/glossary\/310?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=\"P\u0159idat do ko\u0161\u00edku\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"P\u0159idat do ko\u0161\u00edku\" 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=\"\/cs\/wp-json\/wp\/v2\/glossary\/310?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=\"P\u0159idat do ko\u0161\u00edku: \u201cVibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u201cVibration sensor\u201d byl p\u0159id\u00e1n do ko\u0161\u00edku\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">P\u0159idat do ko\u0161\u00edku<\/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\/cs\/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\/cs\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optick\u00fd senzor (laserov\u00fd ot\u00e1\u010dkom\u011br)\">\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=\"Optick\u00fd senzor (laserov\u00fd ot\u00e1\u010dkom\u011br)\" 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\/cs\/product-category\/parts\/\" rel=\"tag\">D\u00edly<\/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\/cs\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optick\u00fd senzor (laserov\u00fd ot\u00e1\u010dkom\u011br)\">Optick\u00fd senzor (laserov\u00fd ot\u00e1\u010dkom\u011br)<\/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> + DPH (pokud se uplat\u0148uje)<\/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=\"\/cs\/wp-json\/wp\/v2\/glossary\/310?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=\"P\u0159idat do ko\u0161\u00edku\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"P\u0159idat do ko\u0161\u00edku\" 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=\"\/cs\/wp-json\/wp\/v2\/glossary\/310?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=\"P\u0159idat do ko\u0161\u00edku: \u201cOptical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u201cOptical Sensor (Laser Tachometer)\u201d byl p\u0159id\u00e1n do ko\u0161\u00edku\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">P\u0159idat do ko\u0161\u00edku<\/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\/cs\/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\/cs\/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=\"Sada pro vyva\u017eov\u00e1n\u00ed rotor\u016f Vibromera: p\u0159epravn\u00ed kuf\u0159\u00edk, v\u00edcekan\u00e1lov\u00fd zesilova\u010d sign\u00e1lu, ru\u010dn\u00ed analyz\u00e1tor, magnetick\u00e1 z\u00e1kladna, vibra\u010dn\u00ed senzory a spir\u00e1lov\u00e9 kabely.\" 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\/cs\/product-category\/devices\/\" rel=\"tag\">Za\u0159\u00edzen\u00ed<\/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\/cs\/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> + DPH (pokud se uplat\u0148uje)<\/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=\"\/cs\/wp-json\/wp\/v2\/glossary\/310?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=\"P\u0159idat do ko\u0161\u00edku\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"P\u0159idat do ko\u0161\u00edku\" 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=\"\/cs\/wp-json\/wp\/v2\/glossary\/310?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=\"P\u0159idat do ko\u0161\u00edku: \u201cBalanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u201cBalanset-4\u201d byl p\u0159id\u00e1n do ko\u0161\u00edku\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">P\u0159idat do ko\u0161\u00edku<\/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\/cs\/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\/cs\/product\/magnet-stand\/\" title=\"Magnetick\u00fd stojan 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=\"Magnetick\u00e1 z\u00e1kladna.\" 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\/cs\/product-category\/parts\/\" rel=\"tag\">D\u00edly<\/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\/cs\/product\/magnet-stand\/\" title=\"Magnetick\u00fd stojan Insize-60 kgf\">Magnetick\u00fd stojan 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> + DPH (pokud se uplat\u0148uje)<\/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=\"\/cs\/wp-json\/wp\/v2\/glossary\/310?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=\"P\u0159idat do ko\u0161\u00edku\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"P\u0159idat do ko\u0161\u00edku\" 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=\"\/cs\/wp-json\/wp\/v2\/glossary\/310?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=\"P\u0159idat do ko\u0161\u00edku: \u201cMagnetic Stand Insize-60-kgf\u201d\" rel=\"nofollow\" data-success_message=\"\u201cMagnetic Stand Insize-60-kgf\u201d byl p\u0159id\u00e1n do ko\u0161\u00edku\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">P\u0159idat do ko\u0161\u00edku<\/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\/cs\/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\/cs\/product\/reflective-tape\/\" title=\"Reflexn\u00ed p\u00e1ska\">\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=\"Reflexn\u00ed p\u00e1ska\" 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\/cs\/product-category\/parts\/\" rel=\"tag\">D\u00edly<\/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\/cs\/product\/reflective-tape\/\" title=\"Reflexn\u00ed p\u00e1ska\">Reflexn\u00ed p\u00e1ska<\/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> + DPH (pokud se uplat\u0148uje)<\/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=\"\/cs\/wp-json\/wp\/v2\/glossary\/310?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=\"P\u0159idat do ko\u0161\u00edku\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"P\u0159idat do ko\u0161\u00edku\" 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=\"\/cs\/wp-json\/wp\/v2\/glossary\/310?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=\"P\u0159idat do ko\u0161\u00edku: \u201cReflective tape\u201d\" rel=\"nofollow\" data-success_message=\"\u201cReflective tape\u201d byl p\u0159id\u00e1n do ko\u0161\u00edku\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">P\u0159idat do ko\u0161\u00edku<\/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\/cs\/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\/cs\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dynamick\u00fd vyva\u017eova\u010d &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=\"Obsah sady Balanset-1A s jednotkou rozhran\u00ed, senzory, ot\u00e1\u010dkom\u011brem a p\u0159\u00edslu\u0161enstv\u00edm\" 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\/cs\/product-category\/devices\/\" rel=\"tag\">Za\u0159\u00edzen\u00ed<\/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\/cs\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dynamick\u00fd vyva\u017eova\u010d &quot;Balanset-1A&quot; OEM\">Dynamick\u00fd vyva\u017eova\u010d \"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> + DPH (pokud se uplat\u0148uje)<\/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=\"\/cs\/wp-json\/wp\/v2\/glossary\/310?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=\"P\u0159idat do ko\u0161\u00edku\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"P\u0159idat do ko\u0161\u00edku\" 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=\"\/cs\/wp-json\/wp\/v2\/glossary\/310?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=\"P\u0159idat do ko\u0161\u00edku: \u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"\u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d byl p\u0159id\u00e1n do ko\u0161\u00edku\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">P\u0159idat do ko\u0161\u00edku<\/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>V\u00edr<\/strong> a <strong>vibrace<\/strong> \u2014 nej\u010dast\u011bji se vyskytuje jako <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/oil-whirl\/\">olejov\u00fd v\u00edr<\/a> a olejov\u00fd bi\u010d \u2013 jsou dv\u011b p\u0159\u00edbuzn\u00e9 a velmi nebezpe\u010dn\u00e9 formy samobuzen\u00e9ho, <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/sub-synchronous\/\">subsynchronn\u00ed<\/a> <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/vibration\/\">vibrace<\/a> kter\u00e9 se vyskytuj\u00ed u vysokorychlostn\u00edch rota\u010dn\u00edch stroj\u016f pracuj\u00edc\u00edch v tekut\u00e9m filmu (<a href=\"https:\/\/vibromera.eu\/cs\/glossary\/journal-bearing\/\">\u010dep h\u0159\u00eddele<\/a>) lo\u017eiska. Nejsou <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/forced-vibration\/\">vynucen\u00e9 kmit\u00e1n\u00ed<\/a> zp\u016fsoben\u00e9 poruchami, jako jsou <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/unbalance\/\">nevyv\u00e1\u017eenost<\/a> nebo <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/misalignment\/\">nesouosost<\/a>; m\u00edsto toho jsou <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/rotor-instability\/\">nestability rotoru<\/a> p\u0159i kter\u00e9m samotn\u00fd pohyb rotoru vyvol\u00e1v\u00e1 s\u00edly, kter\u00e9 tyto vibrace udr\u017euj\u00ed a zesiluj\u00ed. V obou p\u0159\u00edpadech se h\u0159\u00eddel \u201eto\u010d\u00ed\u201c \u2013 v r\u00e1mci v\u016fle lo\u017eiska se pohybuje vp\u0159ed po \u0161irok\u00e9 dr\u00e1ze, kter\u00e1 se zcela li\u0161\u00ed od dr\u00e1hy jej\u00ed vlastn\u00ed rotace.<\/p>\n<h2>1. Definice: Co jsou to \u201ewhirl\u201c a \u201ewhip\u201c?<\/h2>\n<p>Stoj\u00ed za to rozli\u0161it dva pojmy, kter\u00e9 b\u011b\u017en\u00fd v\u00fdraz \u201ev\u00edr\u201c spl\u00fdv\u00e1 dohromady. <em>Spin<\/em> ot\u00e1\u010d\u00ed se rotor kolem sv\u00e9 vlastn\u00ed geometrick\u00e9 osy. <em>V\u00edr<\/em> (neboli precese) je pohyb cel\u00e9 t\u00e9to osy po v\u011bt\u0161\u00ed kru\u017enici uvnit\u0159 lo\u017eiska \u2013 p\u0159edstavte si to jako to\u010d\u00edc\u00ed se minci, jej\u00ed\u017e st\u0159ed se z\u00e1rove\u0148 pohybuje po stole. V\u0161echny rotory se trochu ot\u00e1\u010d\u00ed; pot\u00ed\u017ee nastanou, kdy\u017e se tento pohyb p\u0159estane chovat jako ne\u0161kodn\u00e1 reakce na <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/residual-unbalance\/\">zbytkov\u00e1 nevyv\u00e1\u017eenost<\/a> and becomes <strong>self-excited<\/strong>, p\u0159i\u010dem\u017e \u010derp\u00e1 energii ze st\u00e1l\u00e9 rotace, nikoli z vn\u011bj\u0161\u00edho p\u016fsoben\u00ed. Olejov\u00fd v\u00edr je samobuzenou precez\u00ed poh\u00e1n\u011bnou mazac\u00edm filmem v lo\u017eisku; olejov\u00fd bi\u010d je prudk\u00e1 rezonance, do kter\u00e9 se tento jev m\u016f\u017ee vyvinout. Jeliko\u017e zdrojem energie je samotn\u00e1 rotace, nelze tyto nestabiln\u00ed stavy vyv\u00e1\u017eit \u2013 co\u017e p\u0159edstavuje z\u00e1sadn\u00ed rozd\u00edl oproti probl\u00e9m\u016fm se synchronizac\u00ed.<\/p>\n<h2>2. Mechanismus: Jak k tomu doch\u00e1z\u00ed?<\/h2>\n<p>V lo\u017eisku s olejov\u00fdm filmem nen\u00ed rotuj\u00edc\u00ed h\u0159\u00eddel podep\u0159ena p\u0159\u00edm\u00fdm kontaktem kovu s kovem, ale vysokotlak\u00fdm olejov\u00fdm kl\u00ednem. H\u0159\u00eddel nesed\u00ed ve st\u0159edu lo\u017eiska; posouv\u00e1 se po jedn\u00e9 stran\u011b, vytla\u010dov\u00e1na z\u00e1t\u011b\u017e\u00ed, kterou nese. Jak povrch \u010depu un\u00e1\u0161\u00ed olej po obvodu prstencov\u00e9 mezery, mazivo cirkuluje p\u0159i <strong>pr\u016fm\u011brn\u00e1 rychlost o n\u011bco men\u0161\u00ed ne\u017e polovina povrchov\u00e9 rychlosti h\u0159\u00eddele<\/strong> \u2014 kapalina, kter\u00e1 je v kontaktu s h\u0159\u00eddel\u00ed, se pohybuje rychlost\u00ed h\u0159\u00eddele, kapalina u stacion\u00e1rn\u00ed st\u011bny lo\u017eiska je t\u00e9m\u011b\u0159 v klidu a celkov\u00fd pr\u016fm\u011br se pohybuje t\u011bsn\u011b pod hodnotou 0,5\u00d7.<\/p>\n<p>K v\u00ed\u0159en\u00ed oleje doch\u00e1z\u00ed, kdy\u017e tento cirkuluj\u00edc\u00ed film za\u010dne \u201etla\u010dit\u201c lehce zat\u00ed\u017een\u00fd h\u0159\u00eddel p\u0159ed sebou a un\u00e1\u0161et jej do velk\u00e9 ob\u011b\u017en\u00e9 dr\u00e1hy vp\u0159ed kolem lo\u017eiska. Frekvence v\u00ed\u0159en\u00ed je d\u00e1na pr\u016fm\u011brnou rychlost\u00ed olejov\u00e9ho filmu, kter\u00e1 se obvykle pohybuje v rozmez\u00ed <strong>42 % a 48 % b\u011b\u017eeck\u00e9 rychlosti (0,42\u00d7 a\u017e 0,48\u00d7)<\/strong>. Ten charakteristick\u00fd subsynchronn\u00ed rys \u2013 bl\u00ed\u017e\u00edc\u00ed se polovin\u011b, ale nikdy p\u0159esn\u011b polovin\u011b <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/running-speed\/\">provozn\u00ed ot\u00e1\u010dky<\/a> \u2014 je to pr\u00e1v\u011b ten charakteristick\u00fd rys, kter\u00fd analytici hledaj\u00ed. (Pr\u00e1v\u011b kv\u016fli tomuto \u00fadaji \u201eo n\u011bco m\u00e9n\u011b ne\u017e polovina\u201c se v\u00ed\u0159en\u00ed oleje n\u011bkdy voln\u011b ozna\u010duje jako \u201ev\u00ed\u0159en\u00ed s polovi\u010dn\u00ed rychlost\u00ed\u201c, a\u010dkoli skute\u010dn\u00e1 hodnota nikdy zcela nedosahuje 0,5\u00d7.)<\/p>\n<h2>3. Olejov\u00fd v\u00edr: P\u0159edzv\u011bst<\/h2>\n<p>V\u00edr oleje je obvykle po\u010d\u00e1te\u010dn\u00ed f\u00e1z\u00ed nestability \u2013 varov\u00e1n\u00edm, nikoli je\u0161t\u011b katastrofou. Jeho charakteristick\u00e9 rysy jsou:<\/p>\n<ul>\n<li><strong>Frekvence:<\/strong> se jev\u00ed jako z\u0159eteln\u00fd vrchol v <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/fft\/\">Rychl\u00e1 Fourierova transformace (FFT)<\/a> <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/spectrum\/\">spektrum<\/a> v rozmez\u00ed 0,42\u00d7 a\u017e 0,48\u00d7 ot\u00e1\u010dek za minutu.<\/li>\n<li><strong>Behaviour:<\/strong> frekvence v\u00ed\u0159en\u00ed <em>zvy\u0161uje se<\/em> jak se stroj zrychluje, v\u017edy se dr\u017e\u00ed na p\u0159ibli\u017en\u011b 45 % provozn\u00ed rychlosti. P\u0159i rozb\u011bhu stoup\u00e1 jako subsynchronn\u00ed st\u00edn pod \u010d\u00e1rou 1\u00d7.<\/li>\n<li><strong>Z\u00e1va\u017enost:<\/strong> m\u016f\u017ee zp\u016fsobovat siln\u00e9, av\u0161ak n\u011bkdy i stabiln\u00ed vibrace, kter\u00e9 se mohou objevovat nebo mizet v z\u00e1vislosti na zm\u011bn\u011b zat\u00ed\u017een\u00ed, ot\u00e1\u010dek nebo teploty oleje. Je to samoz\u0159ejm\u011b ne\u017e\u00e1douc\u00ed jev, ale ne v\u017edy vede k okam\u017eit\u00e9mu po\u0161kozen\u00ed.<\/li>\n<li><strong>Citlivost:<\/strong> P\u0159\u00ed\u010dinou jsou obvykle lo\u017eiska s n\u00edzk\u00fdm zat\u00ed\u017een\u00edm, nadm\u011brn\u00e1 lo\u017eiska nebo opot\u0159ebovan\u00e1 lo\u017eiska, proto\u017ee p\u0159i n\u00edzk\u00e9m m\u011brn\u00e9m zat\u00ed\u017een\u00ed ur\u010duje polohu h\u0159\u00eddele p\u0159edev\u0161\u00edm olejov\u00fd kl\u00edn.<\/li>\n<\/ul>\n<h2>4. Olejov\u00fd bi\u010d: Kritick\u00e9 nebezpe\u010d\u00ed<\/h2>\n<p>Olejov\u00fd bi\u010d je mnohem z\u00e1va\u017en\u011bj\u0161\u00ed jev, kter\u00fd p\u0159\u00edmo vypl\u00fdv\u00e1 z olejov\u00e9ho v\u00edru. Vznik\u00e1 v okam\u017eiku, kdy stroj zrychl\u00ed natolik, \u017ee frekvence olejov\u00e9ho v\u00edru (p\u0159ibli\u017en\u011b p\u0159i 45 % provozn\u00edch ot\u00e1\u010dek) stoupne natolik, a\u017e se setk\u00e1 s <strong>first <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/natural-frequency\/\">vlastn\u00ed frekvence<\/a><\/strong> \u2014 its first <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/critical-speed\/\">kritick\u00e1 rychlost<\/a>. V tu chv\u00edli se v\u00edr \u201enalad\u00ed\u201c na vlastn\u00ed frekvenci a vyvol\u00e1 plnohodnotn\u00fd <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/resonance\/\">rezonance<\/a>. Mezi jeho vlastnosti pat\u0159\u00ed:<\/p>\n<ul>\n<li><strong>Frekvence:<\/strong> vibrace se ust\u00e1l\u00ed na prvn\u00ed vlastn\u00ed frekvenci rotoru a <em>u\u017e d\u00e1le nestoup\u00e1<\/em>, i kdy\u017e se stroj st\u00e1le zrychluje \u2013 tak\u017ee sub-synchronn\u00ed \u0161pi\u010dka se ust\u00e1l\u00ed na stejn\u00e9 \u00farovni, zat\u00edmco \u0161pi\u010dka 1\u00d7 st\u00e1le stoup\u00e1.<\/li>\n<li><strong>Amplituda:<\/strong> vibrace se v\u00fdrazn\u011b zesiluj\u00ed, st\u00e1vaj\u00ed se prudk\u00fdmi a nestabiln\u00edmi.<\/li>\n<li><strong>Behaviour:<\/strong> olejov\u00e9 \u0161lehnut\u00ed je nesm\u00edrn\u011b ni\u010div\u00e9 a zp\u016fsob\u00ed <em>ne<\/em> m\u016f\u017ee doj\u00edt k po\u0161kozen\u00ed lo\u017eisek, t\u011bsn\u011bn\u00ed a samotn\u00e9ho rotoru b\u011bhem velmi kr\u00e1tk\u00e9 doby, n\u011bkdy v d\u016fsledku siln\u00e9ho <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/rotor-rub\/\">t\u0159en\u00ed rotoru<\/a> jak dr\u00e1ha vypl\u0148uje voln\u00fd prostor.<\/li>\n<\/ul>\n<p>Rychlost, p\u0159i n\u00ed\u017e doch\u00e1z\u00ed k olejov\u00e9mu \u0161lehnut\u00ed, je obvykle t\u011bsn\u011b nad <strong>dvojn\u00e1sobek prvn\u00ed kritick\u00e9 rychlosti rotoru<\/strong> \u2014 bod, v n\u011bm\u017e se v\u00edrov\u00e1 \u010d\u00e1ra o d\u00e9lce p\u0159ibli\u017en\u011b 0,5\u00d7 prot\u00edn\u00e1 prvn\u00ed vlastn\u00ed frekvenci. Stroj posti\u017een\u00fd olejov\u00fdm \u0161lehnut\u00edm vy\u017eaduje okam\u017eit\u00fd <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/shutdown\/\">vypnut\u00ed<\/a>; pr\u00e1v\u011b o tento sc\u00e9n\u00e1\u0159 se jedn\u00e1 <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/machinery-protection\/\">ochrana stroj\u016f<\/a> tyto syst\u00e9my jsou navr\u017eeny tak, aby na n\u011b reagovaly.<\/p>\n<h2>5. Jak rozpoznat v\u00edr a \u0161leh\u00e1n\u00ed<\/h2>\n<ul>\n<li><strong>Anal\u00fdza spektra:<\/strong> hledejte v\u00fdrazn\u00fd subsynchronn\u00ed vrchol. Pokud b\u011bhem rozb\u011bhu frekvence tohoto vrcholu stoup\u00e1 s rostouc\u00ed rychlost\u00ed, jedn\u00e1 se o v\u00edr; pokud se jeho hodnota ust\u00e1l\u00ed na pevn\u00e9 hodnotu, zat\u00edmco vrchol 1\u00d7 d\u00e1le stoup\u00e1, do\u0161lo k p\u0159echodu do olejov\u00e9ho \u0161lehnut\u00ed.<\/li>\n<li><strong><a href=\"https:\/\/vibromera.eu\/cs\/glossary\/orbit\/\">Orbit plot<\/a>:<\/strong> Dr\u00e1ha h\u0159\u00eddele je velk\u00e1 kru\u017enice nebo elipsa s preces\u00ed sm\u011brem dop\u0159edu, na kterou se \u010dasto p\u0159ekr\u00fdv\u00e1 slo\u017eka 1\u00d7, \u010d\u00edm\u017e vznik\u00e1 charakteristick\u00fd vzor p\u0159ipom\u00ednaj\u00edc\u00ed \u201esmy\u010dku\u201c.<\/li>\n<li><strong><a href=\"https:\/\/vibromera.eu\/cs\/glossary\/waterfall-plot\/\">Vodop\u00e1dov\u00fd diagram<\/a>:<\/strong> vodop\u00e1dov\u00fd (nebo <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/cascade-plot\/\">kask\u00e1da<\/a>diagram rozb\u011bhu poskytuje nejjasn\u011bj\u0161\u00ed mo\u017en\u00fd obraz, kter\u00fd ukazuje, jak frekvence v\u00edr\u016f stoup\u00e1 s rychlost\u00ed, dokud se neprotne s prvn\u00ed vlastn\u00ed frekvenc\u00ed a nedojde k olejov\u00e9mu \u0161lehnut\u00ed. Zmapov\u00e1n\u00ed t\u011bchto pr\u016fse\u010d\u00edk\u016f je p\u0159esn\u011b to, co <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/campbell-diagram\/\">Campbell\u016fv diagram<\/a> je ur\u010den pro.<\/li>\n<\/ul>\n<p>Vzhledem k tomu, \u017ee v\u00edr a \u0161leh\u00e1n\u00ed se vyskytuj\u00ed pod 1\u00d7, mus\u00ed analyz\u00e1tor dos\u00e1hnout ot\u00e1\u010dek v\u00fdrazn\u011b ni\u017e\u0161\u00edch ne\u017e provozn\u00ed a p\u0159esn\u011b ur\u010dit f\u00e1zi. P\u0159enosn\u00fd dvoukan\u00e1lov\u00fd p\u0159\u00edstroj, jako je nap\u0159\u00edklad <a href=\"https:\/\/vibromera.eu\/cs\/produkt\/balanset-1\/\">Balanset-1A<\/a> zachycuje synchronizovan\u00e9 <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/amplitude\/\">amplituda<\/a> a <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/phase\/\">f\u00e1ze<\/a> komponenty ot\u00e1\u010dek b\u011bhem rozb\u011bhu nebo dojezdu, co\u017e umo\u017e\u0148uje technikovi p\u0159\u00edmo na m\u00edst\u011b ov\u011b\u0159it, zda se u p\u0159etrv\u00e1vaj\u00edc\u00edho n\u00edzkofrekven\u010dn\u00edho \u0161pi\u010dky jedn\u00e1 skute\u010dn\u011b o nestabilitu lo\u017eiska, a nikoli o b\u011b\u017enou nevyv\u00e1\u017eenost \u2013 a co je nem\u00e9n\u011b u\u017eite\u010dn\u00e9, vylou\u010dit probl\u00e9m s vyv\u00e1\u017een\u00edm, ne\u017e se pust\u00ed do opravy, kter\u00e1 by stejn\u011b nemohla fungovat.<\/p>\n<h2>6. P\u0159\u00ed\u010diny a \u0159e\u0161en\u00ed<\/h2>\n<p>Tyto nestability jsou \u0159\u00edzeny konstrukc\u00ed lo\u017eiska, geometri\u00ed rotoru, viskozitou oleje, teplotou a zat\u00ed\u017een\u00edm \u2013 jde o slo\u017eit\u00fd soubor vz\u00e1jemn\u00fdch vliv\u016f, kter\u00fd je form\u00e1ln\u011b zachycen v <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/rotor-dynamics\/\">dynamika rotoru<\/a>. Nejsou zp\u016fsobeny nevyv\u00e1\u017eenost\u00ed a nelze je vyl\u00e9\u010dit pomoc\u00ed <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/vyvazovani\/\">vyva\u017eov\u00e1n\u00ed<\/a>; \u0159e\u0161en\u00edm jsou zm\u011bny na \u00farovni n\u00e1vrhu:<\/p>\n<ul>\n<li>P\u0159ejd\u011bte na stabiln\u011bj\u0161\u00ed geometrii lo\u017eiska, nap\u0159\u00edklad na kluzn\u00e9 lo\u017eisko s nakl\u00e1p\u011bc\u00edmi podlo\u017ekami.<\/li>\n<li>Zm\u011bnou viskozity oleje nebo provozn\u00ed teploty lze ovlivnit chov\u00e1n\u00ed olejov\u00e9ho filmu.<\/li>\n<li>Zvy\u0161te specifick\u00e9 zat\u00ed\u017een\u00ed lo\u017eiska tak, aby h\u0159\u00eddel pevn\u011b dosedala a olejov\u00fd kl\u00edn ji\u017e nemohl p\u016fsobit.<\/li>\n<li>P\u0159idejte dr\u00e1\u017eky, axi\u00e1ln\u00ed p\u0159ep\u00e1\u017eky nebo profily typu \u201elemon-bore\u201c, kter\u00e9 naru\u0161uj\u00ed obvodov\u00fd tok oleje, jen\u017e nap\u00e1j\u00ed v\u00edr.<\/li>\n<\/ul>\n<p>S t\u00edm \u00fazce souvisej\u00edc\u00ed nestabilita, <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/steam-whirl\/\">parn\u00ed v\u00edr<\/a>, je v turb\u00edn\u00e1ch zp\u016fsobeno sp\u00ed\u0161e aerodynamick\u00fdmi silami ne\u017e silami olejov\u00e9ho filmu, av\u0161ak vede k podobn\u00e9mu obrazu samovzbuditeln\u00e9ho subsynchronn\u00edho jevu \u2013 co\u017e n\u00e1m p\u0159ipom\u00edn\u00e1, \u017ee \u201ev\u00ed\u0159en\u00ed\u201c p\u0159edstavuje skupinu jev\u016f, kter\u00e9 spojuje jedna spole\u010dn\u00e1 vlastnost: rotor dod\u00e1v\u00e1 energii do sv\u00e9 vlastn\u00ed ob\u011b\u017en\u00e9 dr\u00e1hy.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/cs\/glossary\/\">\u2190 Zp\u011bt na hlavn\u00ed index<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Pr\u016fvodce olejov\u00fdm v\u00edrem a olejov\u00fdm \u0161lehem, dv\u011bma nebezpe\u010dn\u00fdmi subsynchronn\u00edmi nestabilitami ve vysokorychlostn\u00edch stroj\u00edch s fluidn\u00edmi lo\u017eisky. Seznamte se s jejich p\u0159\u00ed\u010dinami, charakteristikami a pro\u010d jsou tak destruktivn\u00ed.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,111],"tags":[],"class_list":["post-310","glossary","type-glossary","status-publish","hentry","category-glossary","category-rotor-balancing"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/cs\/wp-json\/wp\/v2\/glossary\/310","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/cs\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/cs\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/cs\/wp-json\/wp\/v2\/glossary\/310\/revisions"}],"predecessor-version":[{"id":101321,"href":"https:\/\/vibromera.eu\/cs\/wp-json\/wp\/v2\/glossary\/310\/revisions\/101321"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/cs\/wp-json\/wp\/v2\/media?parent=310"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/cs\/wp-json\/wp\/v2\/categories?post=310"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/cs\/wp-json\/wp\/v2\/tags?post=310"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}