{"id":235,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/shaft-whip\/"},"modified":"2026-07-03T10:10:47","modified_gmt":"2026-07-03T10:10:47","slug":"shaft-whip","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/sk\/glossary\/shaft-whip\/","title":{"rendered":"Chvenie hriade\u013ea? Vysvetlenie z\u00e1va\u017enej nestability rotora"},"content":{"rendered":"<h1>Pochopenie vibr\u00e1ci\u00ed hriade\u013ea v rotuj\u00facich strojoch<\/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\/sk\/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\/sk\/product\/balanset-1\/\" title=\"Prenosn\u00fd vyva\u017eova\u010d a analyz\u00e1tor vibr\u00e1ci\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\u00e1 s\u00faprava prenosn\u00e9ho vyva\u017eovacieho zariadenia a analyz\u00e1tora vibr\u00e1ci\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\/sk\/product-category\/devices\/\" rel=\"tag\">Zariadenia<\/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\/sk\/product\/balanset-1\/\" title=\"Prenosn\u00fd vyva\u017eova\u010d a analyz\u00e1tor vibr\u00e1ci\u00ed Balanset-1A\">Prenosn\u00fd vyva\u017eova\u010d a analyz\u00e1tor vibr\u00e1ci\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 (ak sa 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=\"\/sk\/wp-json\/wp\/v2\/glossary\/235?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=\"Prida\u0165 do ko\u0161\u00edka\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Prida\u0165 do ko\u0161\u00edka\" 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=\"\/sk\/wp-json\/wp\/v2\/glossary\/235?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=\"Prida\u0165 do ko\u0161\u00edka: \u201ePortable balancer &amp; Vibration analyzer Balanset-1A\u201c\" rel=\"nofollow\" data-success_message=\"\u201ePortable balancer &amp; Vibration analyzer Balanset-1A\u201c bol pridan\u00fd do v\u00e1\u0161ho ko\u0161\u00edka\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Prida\u0165 do ko\u0161\u00edka<\/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\/sk\/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\/sk\/product\/vibration-sensor\/\" title=\"Sn\u00edma\u010d vibr\u00e1ci\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 vibr\u00e1ci\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\/sk\/product-category\/parts\/\" rel=\"tag\">Diely<\/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\/sk\/product\/vibration-sensor\/\" title=\"Sn\u00edma\u010d vibr\u00e1ci\u00ed\">Sn\u00edma\u010d vibr\u00e1ci\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 (ak sa 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=\"\/sk\/wp-json\/wp\/v2\/glossary\/235?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=\"Prida\u0165 do ko\u0161\u00edka\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Prida\u0165 do ko\u0161\u00edka\" 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=\"\/sk\/wp-json\/wp\/v2\/glossary\/235?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=\"Prida\u0165 do ko\u0161\u00edka: \u201eVibration sensor\u201c\" rel=\"nofollow\" data-success_message=\"\u201eVibration sensor\u201c bol pridan\u00fd do v\u00e1\u0161ho ko\u0161\u00edka\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Prida\u0165 do ko\u0161\u00edka<\/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\/sk\/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\/sk\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optick\u00fd senzor (laserov\u00fd tachometer)\">\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 tachometer)\" 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\/sk\/product-category\/parts\/\" rel=\"tag\">Diely<\/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\/sk\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optick\u00fd senzor (laserov\u00fd tachometer)\">Optick\u00fd senzor (laserov\u00fd tachometer)<\/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 (ak sa 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=\"\/sk\/wp-json\/wp\/v2\/glossary\/235?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=\"Prida\u0165 do ko\u0161\u00edka\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Prida\u0165 do ko\u0161\u00edka\" 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=\"\/sk\/wp-json\/wp\/v2\/glossary\/235?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=\"Prida\u0165 do ko\u0161\u00edka: \u201eOptical Sensor (Laser Tachometer)\u201c\" rel=\"nofollow\" data-success_message=\"\u201eOptical Sensor (Laser Tachometer)\u201c bol pridan\u00fd do v\u00e1\u0161ho ko\u0161\u00edka\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Prida\u0165 do ko\u0161\u00edka<\/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\/sk\/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\/sk\/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=\"S\u00faprava na vyva\u017eovanie rotora Vibromera: prenosn\u00e9 puzdro, viackan\u00e1lov\u00fd prevodn\u00edk sign\u00e1lu, ru\u010dn\u00fd analyz\u00e1tor, magnetick\u00e1 z\u00e1klad\u0148a, vibra\u010dn\u00e9 senzory a \u0161pir\u00e1lov\u00e9 k\u00e1ble.\" 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\/sk\/product-category\/devices\/\" rel=\"tag\">Zariadenia<\/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\/sk\/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 (ak sa 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=\"\/sk\/wp-json\/wp\/v2\/glossary\/235?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=\"Prida\u0165 do ko\u0161\u00edka\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Prida\u0165 do ko\u0161\u00edka\" 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=\"\/sk\/wp-json\/wp\/v2\/glossary\/235?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=\"Prida\u0165 do ko\u0161\u00edka: \u201eBalanset-4\u201c\" rel=\"nofollow\" data-success_message=\"\u201eBalanset-4\u201c bol pridan\u00fd do v\u00e1\u0161ho ko\u0161\u00edka\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Prida\u0165 do ko\u0161\u00edka<\/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\/sk\/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\/sk\/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\u00e1klad\u0148a.\" 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\/sk\/product-category\/parts\/\" rel=\"tag\">Diely<\/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\/sk\/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 (ak sa 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=\"\/sk\/wp-json\/wp\/v2\/glossary\/235?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=\"Prida\u0165 do ko\u0161\u00edka\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Prida\u0165 do ko\u0161\u00edka\" 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=\"\/sk\/wp-json\/wp\/v2\/glossary\/235?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=\"Prida\u0165 do ko\u0161\u00edka: \u201eMagnetic Stand Insize-60-kgf\u201c\" rel=\"nofollow\" data-success_message=\"\u201eMagnetic Stand Insize-60-kgf\u201c bol pridan\u00fd do v\u00e1\u0161ho ko\u0161\u00edka\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Prida\u0165 do ko\u0161\u00edka<\/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\/sk\/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\/sk\/product\/reflective-tape\/\" title=\"Reflexn\u00e1 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\u00e1 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\/sk\/product-category\/parts\/\" rel=\"tag\">Diely<\/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\/sk\/product\/reflective-tape\/\" title=\"Reflexn\u00e1 p\u00e1ska\">Reflexn\u00e1 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 (ak sa 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=\"\/sk\/wp-json\/wp\/v2\/glossary\/235?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=\"Prida\u0165 do ko\u0161\u00edka\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Prida\u0165 do ko\u0161\u00edka\" 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=\"\/sk\/wp-json\/wp\/v2\/glossary\/235?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=\"Prida\u0165 do ko\u0161\u00edka: \u201eReflective tape\u201c\" rel=\"nofollow\" data-success_message=\"\u201eReflective tape\u201c bol pridan\u00fd do v\u00e1\u0161ho ko\u0161\u00edka\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Prida\u0165 do ko\u0161\u00edka<\/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\/sk\/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\/sk\/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 s\u00fapravy Balanset-1A s jednotkou rozhrania, sn\u00edma\u010dmi, tachometrom a pr\u00edslu\u0161enstvom\" 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\/sk\/product-category\/devices\/\" rel=\"tag\">Zariadenia<\/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\/sk\/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 (ak sa 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=\"\/sk\/wp-json\/wp\/v2\/glossary\/235?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=\"Prida\u0165 do ko\u0161\u00edka\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"Prida\u0165 do ko\u0161\u00edka\" 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=\"\/sk\/wp-json\/wp\/v2\/glossary\/235?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=\"Prida\u0165 do ko\u0161\u00edka: \u201eDynamic balancer \u201cBalanset-1A\u201d OEM\u201c\" rel=\"nofollow\" data-success_message=\"\u201eDynamic balancer \u201cBalanset-1A\u201d OEM\u201c bol pridan\u00fd do v\u00e1\u0161ho ko\u0161\u00edka\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">Prida\u0165 do ko\u0161\u00edka<\/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>Bi\u010d hriade\u013ea<\/strong> \u2014 known as <em>olejov\u00fd v\u00edr s biciom<\/em> ke\u010f vznik\u00e1 v hydrodynamick\u00fdch lo\u017eisk\u00e1ch \u2014 je z\u00e1va\u017enou formou <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/rotor-instability\/\">nestabilita rotora<\/a> charakterizovan\u00e9 n\u00e1siln\u00fdm <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/self-excited-vibration\/\">samobuden\u00e9 vibr\u00e1cie<\/a>. Objavuje sa, ke\u010f rotor be\u017eiaci v lo\u017eisk\u00e1ch s tekutinov\u00fdm filmom prekro\u010d\u00ed kritick\u00fa prahov\u00fa r\u00fdchlos\u0165, zvy\u010dajne pribli\u017ene dvojn\u00e1sobok prvej <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/critical-speed\/\">kritick\u00e1 r\u00fdchlos\u0165<\/a>. Ke\u010f sa v\u00edr (whip) raz uchyt\u00ed, frekvencia vibr\u00e1ci\u00ed sa &#8220;zamkne&#8221; na prv\u00fa rotorovu <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/natural-frequency\/\">prirodzen\u00e1 frekvencia<\/a> a zost\u00e1va tam bez oh\u013eadu na ak\u00e9ko\u013evek \u010fal\u0161ie zvy\u0161ovanie ot\u00e1\u010dok, pri\u010dom amplit\u00fadu obmedzuje len v\u00f4\u013ea lo\u017eiska \u2014 alebo katastrof\u00e1lne zlyhanie. Je to jeden z najnebezpe\u010dnej\u0161\u00edch stavov vo vysokoot\u00e1\u010dkov\u00fdch strojoch, preto\u017ee vznik\u00e1 n\u00e1hle, do nieko\u013ek\u00fdch sek\u00fand narastie na de\u0161trukt\u00edvne \u00farovne a ned\u00e1 sa odstr\u00e1ni\u0165 <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/vyvazovanie\/\">vyva\u017eovanie<\/a> ani \u017eiadnou inou konven\u010dnou korekciou. Vy\u017eaduje okam\u017eit\u00e9 odstavenie, po ktorom nasleduj\u00fa zmeny v lo\u017eiskovom syst\u00e9me, aby sa zabr\u00e1nilo opakovaniu.<\/p>\n<h2>1. Postupnos\u0165: Od olejov\u00e9ho v\u00edru po v\u00edr hriade\u013ea<\/h2>\n<p>V\u00edr (whip) prich\u00e1dza len zriedka bez varovania \u2014 je koncov\u00fdm bodom \u0161tvorstup\u0148ovej postupnosti, ktor\u00fa pozorn\u00fd analytik dok\u00e1\u017ee zachyti\u0165 d\u00e1vno pred de\u0161trukt\u00edvnym \u0161t\u00e1diom.<\/p>\n<h3>Etapa 1 \u2014 Stabiln\u00e1 prev\u00e1dzka<\/h3>\n<ul>\n<li>Rotor be\u017e\u00ed pod prahom nestability.<\/li>\n<li>Only normal <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/forced-vibration\/\">vyn\u00faten\u00e9 vibr\u00e1cie<\/a> z <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/unbalance\/\">nevyv\u00e1\u017eenos\u0165<\/a> is present.<\/li>\n<li>Olejov\u00fd film lo\u017eiska poskytuje stabiln\u00fa, dobre tlmen\u00fa oporu.<\/li>\n<\/ul>\n<h3>Etapa 2 \u2014 Po\u010diatok olejov\u00e9ho v\u00edrenia<\/h3>\n<p>Ke\u010f ot\u00e1\u010dky st\u00fapnu nad pribli\u017ene 2\u00d7 prv\u00fa kritick\u00fa r\u00fdchlos\u0165, <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/oil-whirl\/\">olejov\u00fd v\u00edr<\/a> begins:<\/p>\n<ul>\n<li>A <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/sub-synchronous\/\">subsynchr\u00f3nny<\/a> vibr\u00e1cia sa objavuje pribli\u017ene na 0,43\u20130,48\u00d7 ot\u00e1\u010dkach hriade\u013ea.<\/li>\n<li>Amplit\u00fada je spo\u010diatku stredn\u00e1 a z\u00e1visl\u00e1 od r\u00fdchlosti<\/li>\n<li>Frekvencia v\u00edru st\u00fapa \u00famerne s ot\u00e1\u010dkami hriade\u013ea.<\/li>\n<li>M\u00f4\u017ee by\u0165 preru\u0161ovan\u00e1 alebo trval\u00e1.<\/li>\n<li>M\u00f4\u017ee koexistova\u0165 s be\u017en\u00fdmi vibr\u00e1ciami 1\u00d7 sp\u00f4soben\u00fdmi nevyv\u00e1\u017eenos\u0165ou.<\/li>\n<\/ul>\n<h3>\u0160t\u00e1dium 3 \u2014 Prechod do v\u00edru (whip)<\/h3>\n<p>Ke\u010f st\u00fapaj\u00faca frekvencia olejov\u00e9ho v\u00edru st\u00fapne dostato\u010dne vysoko, aby sa zhodovala s prvou vlastnou frekvenciou, spr\u00e1vanie n\u00e1hle men\u00ed svoj charakter:<\/p>\n<ul>\n<li><strong>Zamknutie frekvencie:<\/strong> frekvencia vibr\u00e1ci\u00ed prest\u00e1va sledova\u0165 ot\u00e1\u010dky a ust\u00e1li sa na vlastnej frekvencii.<\/li>\n<li><strong>Rezonan\u010dn\u00e9 zosilnenie:<\/strong> amplit\u00fada dramaticky narast\u00e1, preto\u017ee syst\u00e9m je teraz v <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/resonance\/\">rezonancia<\/a>.<\/li>\n<li><strong>N\u00e1hly n\u00e1stup:<\/strong> skok z v\u00edru (whirl) do v\u00edru (whip) m\u00f4\u017ee by\u0165 prakticky okam\u017eit\u00fd.<\/li>\n<li><strong>Nez\u00e1vislos\u0165 od ot\u00e1\u010dok:<\/strong> \u010fal\u0161ie zvy\u0161ovanie ot\u00e1\u010dok u\u017e nemen\u00ed frekvenciu \u2014 iba amplit\u00fadu.<\/li>\n<\/ul>\n<h3>Stupe\u0148 4 \u2014 Vykr\u00facanie hriade\u013ea (kritick\u00fd stav)<\/h3>\n<ul>\n<li>Vibr\u00e1cie zost\u00e1vaj\u00fa na kon\u0161tantnej frekvencii \u2014 prvej vlastnej frekvencii, typicky 40 \u2013 60 Hz.<\/li>\n<li>Amplit\u00fada dosahuje 5- a\u017e 20-n\u00e1sobok be\u017en\u00fdch vibr\u00e1ci\u00ed sp\u00f4soben\u00fdch nevyv\u00e1\u017eenos\u0165ou.<\/li>\n<li>Hriade\u013e m\u00f4\u017ee narazi\u0165 na hranice lo\u017eiskovej v\u00f4le.<\/li>\n<li>Lo\u017eisk\u00e1 a olej sa r\u00fdchlo zahrievaj\u00fa.<\/li>\n<li>Ak sa stroj nezastav\u00ed, m\u00f4\u017ee do nieko\u013ek\u00fdch min\u00fat d\u00f4js\u0165 ku katastrofick\u00e9mu zlyhaniu.<\/li>\n<\/ul>\n<h2>2. Fyzik\u00e1lny mechanizmus<\/h2>\n<p>V\u00edrenie (whip) je poh\u00e1\u0148an\u00e9 samotnou dynamikou tekutiny olejov\u00e9ho filmu v lo\u017eisku, a preto ho nemo\u017eno odstr\u00e1ni\u0165 vyv\u00e1\u017een\u00edm \u2014 destabilizuj\u00faca energia poch\u00e1dza z maziva, nie z \u0165a\u017ek\u00e9ho miesta. Postupnos\u0165 prebieha takto:<\/p>\n<ol>\n<li><strong>Vznik olejov\u00e9ho klinu:<\/strong> rotuj\u00faci hriade\u013e un\u00e1\u0161a mazivo okolo lo\u017eiska a vytv\u00e1ra tlakov\u00fd klin.<\/li>\n<li><strong>Tangenci\u00e1lna sila:<\/strong> tento klin tla\u010d\u00ed na \u010dap v smere kolmom na radi\u00e1lne vych\u00fdlenie \u2014 kr\u00ed\u017eovo viazan\u00e1, tangenci\u00e1lna sila.<\/li>\n<li><strong>Pohyb po obe\u017enej dr\u00e1he:<\/strong> tangenci\u00e1lna sila \u017eenie stred hriade\u013ea do <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/whirl\/\">v\u00edr<\/a> v <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/orbit\/\">obe\u017en\u00e1 dr\u00e1ha<\/a> pribli\u017ene na polovici ot\u00e1\u010dok hriade\u013ea.<\/li>\n<li><strong>Odoberanie energie:<\/strong> obe\u017en\u00fd pohyb odober\u00e1 energiu z rot\u00e1cie hriade\u013ea, aby sa udr\u017eal \u2014 charakteristick\u00fd znak samobuden\u00fdch vibr\u00e1ci\u00ed.<\/li>\n<li><strong>Rezonan\u010dn\u00e9 uzamknutie:<\/strong> ke\u010f sa frekvencia obe\u017enej dr\u00e1hy zhoduje s vlastnou frekvenciou, rezonancia zosil\u0148uje pohyb.<\/li>\n<li><strong>Medzn\u00fd cyklus:<\/strong> amplit\u00fada rastie, k\u00fdm ju neobmedz\u00ed lo\u017eiskov\u00e1 v\u00f4\u013ea alebo zlyhanie.<\/li>\n<\/ol>\n<p>Ke\u010f\u017ee budiaca sila sa men\u00ed pod\u013ea spr\u00e1vania maziva, \u010doko\u013evek, \u010do zvy\u0161uje tuhos\u0165 olejov\u00e9ho filmu alebo syst\u00e9mu <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/damping\/\">tlmenie<\/a> zvy\u0161uje ot\u00e1\u010dky, pri ktor\u00fdch nestabilita za\u010d\u00edna.<\/p>\n<h2>3. Diagnostick\u00e1 identifik\u00e1cia<\/h2>\n<p>Bi\u010dovanie hriade\u013ea zanech\u00e1va vo vibra\u010dn\u00fdch d\u00e1tach nezamenite\u013en\u00fd odtla\u010dok, \u010do umo\u017e\u0148uje v\u010dasn\u00e9 rozpoznanie, ak sa presk\u00famaj\u00fa spr\u00e1vne grafy.<\/p>\n<h3>Vibra\u010dn\u00fd podpis<\/h3>\n<ul>\n<li><strong><a href=\"https:\/\/vibromera.eu\/sk\/glossary\/spectrum\/\">Spektrum<\/a>:<\/strong> ve\u013ek\u00fd vrchol pri subsynchr\u00f3nnej (prvej vlastnej) frekvencii, ktor\u00fd zost\u00e1va na mieste bez oh\u013eadu na zmeny ot\u00e1\u010dok.<\/li>\n<li><strong><a href=\"https:\/\/vibromera.eu\/sk\/glossary\/waterfall-plot\/\">Vodop\u00e1dov\u00fd graf<\/a>:<\/strong> subsynchr\u00f3nna zlo\u017eka sa zobrazuje ako zvisl\u00e1 \u010diara (kon\u0161tantn\u00e1 frekvencia), a nie ako diagon\u00e1lna \u010diara zlo\u017eky \u00famernej ot\u00e1\u010dkam.<\/li>\n<li><strong><a href=\"https:\/\/vibromera.eu\/sk\/glossary\/order-analysis\/\">R\u00e1dov\u00e1 anal\u00fdza<\/a>:<\/strong> zlomkov\u00fd r\u00e1d, ktor\u00fd <em>zni\u017euje<\/em> so st\u00fapaj\u00facimi ot\u00e1\u010dkami \u2014 napr\u00edklad posun z 0,5\u00d7 na 0,4\u00d7 na 0,35\u00d7 \u2014 preto\u017ee frekvencia je pevn\u00e1, zatia\u013e \u010do ot\u00e1\u010dky st\u00fapaj\u00fa.<\/li>\n<li><strong>Obe\u017en\u00e1 dr\u00e1ha:<\/strong> ve\u013ek\u00e1 kruhov\u00e1 alebo eliptick\u00e1 obe\u017en\u00e1 dr\u00e1ha pri vlastnej frekvencii.<\/li>\n<\/ul>\n<p>A <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/bode-plot\/\">Bodeho graf<\/a> taken on <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/coastdown\/\">dojazd<\/a> \u010falej odde\u013euje skuto\u010dn\u00fa rezonanciu od bi\u010dovania, ke\u010f\u017ee ust\u00e1len\u00e1 subsynchr\u00f3nna \u010diara sa spr\u00e1va celkom inak ako synchr\u00f3nny vrchol kritick\u00fdch ot\u00e1\u010dok.<\/p>\n<h3>R\u00fdchlos\u0165 n\u00e1stupu<\/h3>\n<ul>\n<li><strong>Typick\u00e1 hranica:<\/strong> 2,0 \u2013 2,5\u00d7 prv\u00e9 kritick\u00e9 ot\u00e1\u010dky.<\/li>\n<li><strong>Bearing-dependent:<\/strong> presn\u00e1 prahov\u00e1 hodnota sa l\u00ed\u0161i pod\u013ea kon\u0161trukcie lo\u017eiska, <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/preload\/\">Predbe\u017en\u00e9 za\u0165a\u017eenie<\/a>, a viskozity oleja.<\/li>\n<li><strong>N\u00e1hly n\u00e1stup:<\/strong> mal\u00e9 zv\u00fd\u0161enie ot\u00e1\u010dok m\u00f4\u017ee prepn\u00fa\u0165 rotor zo stabiln\u00e9ho stavu do \u00faplne nestabiln\u00e9ho.<\/li>\n<\/ul>\n<h2>4. Strat\u00e9gie prevencie<\/h2>\n<p>Ke\u010f\u017ee bi\u010dovanie nemo\u017eno odstr\u00e1ni\u0165 vyv\u00e1\u017een\u00edm, prevencia sa zameriava na <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/journal-bearing\/\">klzn\u00e9 lo\u017eisko<\/a> a na sp\u00f4sob prev\u00e1dzkovania stroja.<\/p>\n<h3>\u00dapravy kon\u0161trukcie lo\u017eiska<\/h3>\n<p><strong>1. Klzn\u00e9 lo\u017eisk\u00e1 s kladzn\u00fdm panelom<\/strong> \u2014 naj\u00fa\u010dinnej\u0161ie rie\u0161enie. Segmenty sa ot\u00e1\u010daj\u00fa nez\u00e1visle, \u010d\u00edm sa eliminuje destabilizuj\u00faca kr\u00ed\u017eovo viazan\u00e1 sila; s\u00fa prirodzene stabiln\u00e9 v \u0161irokom rozsahu ot\u00e1\u010dok a s\u00fa priemyseln\u00fdm \u0161tandardom pre vysokoot\u00e1\u010dkov\u00e9 turbostroje.<\/p>\n<p><strong>2. Lo\u017eisk\u00e1 s tlakov\u00fdm va\u013eom<\/strong> \u2014 upraven\u00e9 valcov\u00e9 lo\u017eisko s dr\u00e1\u017ekou alebo priehradkou, ktor\u00e9 zvy\u0161uje \u00fa\u010dinn\u00e9 tlmenie a tuhos\u0165; lacnej\u0161ie ako lo\u017eisko s nakl\u00e1pac\u00edmi segmentmi, no menej \u00fa\u010dinn\u00e9.<\/p>\n<p><strong>3. Predp\u00e4tie lo\u017eiska<\/strong> \u2014 aplik\u00e1cia radi\u00e1lneho predp\u00e4tia (\u010dasto prostredn\u00edctvom kon\u0161trukcie s presaden\u00fdm otvorom) zvy\u0161uje tuhos\u0165 a pos\u00fava prah nestability vy\u0161\u0161ie.<\/p>\n<p><strong>4. <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/squeeze-film-damper\/\">Tvarovate\u013en\u00e9 tlma\u010de visk\u00f3zne<\/a><\/strong> \u2014 extern\u00fd tlmiaci prvok obklopuj\u00faci lo\u017eisko, ktor\u00fd prid\u00e1va tlmenie bez prekon\u0161truovania samotn\u00e9ho lo\u017eiska, vhodn\u00fd na dodato\u010dn\u00fa mont\u00e1\u017e.<\/p>\n<h3>Prev\u00e1dzkov\u00e9 opatrenia<\/h3>\n<ul>\n<li><strong>Obmedzenie ot\u00e1\u010dok:<\/strong> udr\u017eujte maxim\u00e1lne ot\u00e1\u010dky pod prahovou hodnotou \u2014 zvy\u010dajne pod 1,8\u00d7 prv\u00e9 kritick\u00e9 ot\u00e1\u010dky.<\/li>\n<li><strong>Riadenie za\u0165a\u017eenia:<\/strong> prev\u00e1dzkujte pri vy\u0161\u0161\u00edch za\u0165a\u017eeniach lo\u017e\u00edsk, pokia\u013e je to mo\u017en\u00e9, ke\u010f\u017ee za\u0165a\u017eenie zvy\u0161uje tlmenie.<\/li>\n<li><strong>Regul\u00e1cia teploty oleja:<\/strong> chladnej\u0161\u00ed olej je visk\u00f3znej\u0161\u00ed a viac stabilizuj\u00faci.<\/li>\n<li><strong>Monitorovanie:<\/strong> continuous <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/vibration-monitoring\/\">monitorovanie vibr\u00e1ci\u00ed<\/a> s alarmami, ktor\u00e9 \u0161pecificky sleduj\u00fa subsynchr\u00f3nne p\u00e1smo.<\/li>\n<\/ul>\n<h2>5. D\u00f4sledky a \u0161kody<\/h2>\n<h3>Okam\u017eit\u00e9 \u00fa\u010dinky<\/h3>\n<ul>\n<li><strong>Prudk\u00e9 vibr\u00e1cie:<\/strong> amplit\u00fady m\u00f4\u017eu dosiahnu\u0165 nieko\u013eko milimetrov (stovky milov).<\/li>\n<li><strong>Hluk:<\/strong> hlasit\u00fd, v\u00fdrazn\u00fd zvuk \u00faplne odli\u0161n\u00fd od norm\u00e1lnej prev\u00e1dzky.<\/li>\n<li><strong>R\u00fdchle zahrievanie lo\u017eiska:<\/strong> teploty m\u00f4\u017eu po\u010das nieko\u013ek\u00fdch min\u00fat vyst\u00fapi\u0165 o 20\u201350 \u00b0C.<\/li>\n<li><strong>Degrad\u00e1cia oleja:<\/strong> vysok\u00e1 teplota a intenz\u00edvne \u0161mykov\u00e9 nam\u00e1hanie rozkladaj\u00fa mazivo.<\/li>\n<\/ul>\n<h3>Potenci\u00e1lne zlyhania<\/h3>\n<ul>\n<li><strong>Zotretie lo\u017eiska:<\/strong> babbitov\u00e1 v\u00fdstelka sa roztav\u00ed a zotrie sa.<\/li>\n<li><strong>Po\u0161kodenie hriade\u013ea:<\/strong> po\u0161krabanie, ods\u00favanie alebo trval\u00e9 ohnutie.<\/li>\n<li><strong><a href=\"https:\/\/vibromera.eu\/sk\/glossary\/seal-defects\/\">Seal failure<\/a>:<\/strong> nadmern\u00fd pohyb hriade\u013ea po\u0161kodzuje tesniace prvky.<\/li>\n<li><strong>Zlomenie hriade\u013ea:<\/strong> vysok\u00fd cyklus <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/fatigue\/\">\u00fanava<\/a> z d\u00f4vodu siln\u00e9ho kmitania.<\/li>\n<li><strong><a href=\"https:\/\/vibromera.eu\/sk\/glossary\/coupling-defects\/\">Po\u0161kodenie spojky<\/a>:<\/strong> pren\u00e1\u0161an\u00e9 sily ni\u010dia spojky.<\/li>\n<\/ul>\n<h2>6. S\u00favisiace javy<\/h2>\n<h3>Olejov\u00fd v\u00edr<\/h3>\n<p><a href=\"https:\/\/vibromera.eu\/sk\/glossary\/oil-whirl\/\">Olejov\u00fd v\u00edr<\/a> je predchodcom v\u00edru (whip): rovnak\u00fd mechanizmus, ale frekvencia sa e\u0161te nezachytila na vlastn\u00fa frekvenciu. Jeho amplit\u00fada je ni\u017e\u0161ia, jeho frekvencia sleduje ot\u00e1\u010dky pri ~0,43\u20130,48\u00d7 a v niektor\u00fdch aplik\u00e1ci\u00e1ch je tolerovate\u013en\u00fd.<\/p>\n<h3>Parn\u00fd v\u00edr<\/h3>\n<p><a href=\"https:\/\/vibromera.eu\/sk\/glossary\/steam-whirl\/\">Parn\u00fd v\u00edr<\/a> je podobn\u00e1 nestabilita v parn\u00fdch turb\u00ednach, vyvolan\u00e1 aerodynamick\u00fdmi silami v labyrintov\u00fdch tesneniach namiesto olejov\u00e9ho filmu lo\u017eiska. Vykazuje rovnak\u00e9 subsynchr\u00f3nne vibr\u00e1cie, ktor\u00e9 sa zachytia na vlastn\u00fa frekvenciu.<\/p>\n<h3>Vykr\u00facanie s tren\u00edm za sucha<\/h3>\n<p>Tento variant vznik\u00e1 v miestach tesnen\u00ed alebo z <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/rotor-rub\/\">kontakt medzi rotorom a statorom<\/a>. Trenie dod\u00e1va destabilizuj\u00faci mechanizmus; je menej \u010dast\u00e9 ako olejov\u00fd v\u00edr (oil whip), ale rovnako nebezpe\u010dn\u00e9 a vy\u017eaduje si in\u00e9 rie\u0161enie \u2014 odstr\u00e1nenie kontaktu alebo zlep\u0161enie tesnenia.<\/p>\n<h2>7. Pr\u00edpadov\u00e1 \u0161t\u00fadia: Vykr\u00facanie hriade\u013ea kompresora<\/h2>\n<p><strong>Scen\u00e1r:<\/strong> vysokoot\u00e1\u010dkov\u00fd odstrediv\u00fd kompresor na klzn\u00fdch valcov\u00fdch lo\u017eisk\u00e1ch.<\/p>\n<ul>\n<li><strong>Norm\u00e1lna prev\u00e1dzka:<\/strong> 12 000 ot.\/min s vibr\u00e1ciami 2,5 mm\/s.<\/li>\n<li><strong>Zv\u00fd\u0161enie ot\u00e1\u010dok:<\/strong> obsluha zv\u00fd\u0161ila ot\u00e1\u010dky na 13 500 ot.\/min kv\u00f4li v\u00e4\u010d\u0161iemu v\u00fdkonu.<\/li>\n<li><strong>N\u00e1stup:<\/strong> pri 13 200 ot\u00e1\u010dkach za min\u00fatu sa zrazu vyvinula prudk\u00e1 vibr\u00e1cia.<\/li>\n<li><strong>Pr\u00edznaky:<\/strong> 25 mm\/s at a constant 105 Hz; bearing temperature rose from 70 \u00b0C to 95 \u00b0C in three minutes.<\/li>\n<li><strong>N\u00fadzov\u00e9 opatrenie:<\/strong> okam\u017eit\u00e9 zastavenie zabr\u00e1nilo poruche lo\u017eeniska.<\/li>\n<li><strong>Hlavn\u00e1 pr\u00ed\u010dina:<\/strong> the first critical speed was 6,300 rpm (105 Hz); at 13,200 rpm the rotor crossed the whip threshold of roughly 2\u00d7 critical \u2248 12,600 rpm, and the vibration locked onto the 105 Hz first natural frequency.<\/li>\n<li><strong>Rie\u0161enie:<\/strong> klzn\u00e9 lo\u017eisk\u00e1 boli nahraden\u00e9 nakl\u00e1pac\u00edmi segmentov\u00fdmi lo\u017eiskami, \u010do umo\u017enilo bezpe\u010dn\u00fa prev\u00e1dzku do 15 000 ot.\/min.<\/li>\n<\/ul>\n<h2>8. Normy, prax a ter\u00e9nne n\u00e1stroje<\/h2>\n<ul>\n<li><strong><a href=\"https:\/\/vibromera.eu\/sk\/glossary\/api-684\/\">API 684<\/a>:<\/strong> vy\u017eaduje rotordynamick\u00fa anal\u00fdzu stability pre vysokoot\u00e1\u010dkov\u00e9 turbostroje.<\/li>\n<li><strong>API 617:<\/strong> \u0161pecifikuje typy lo\u017e\u00edsk a po\u017eiadavky na stabilitu pre odstrediv\u00e9 kompresory.<\/li>\n<li><strong>Norma ISO 10814:<\/strong> Poskytuje n\u00e1vod na v\u00fdber lo\u017eiska pre stabilitu<\/li>\n<li><strong>Priemyseln\u00e1 prax:<\/strong> nakl\u00e1pacie segmentov\u00e9 lo\u017eisk\u00e1 s\u00fa \u0161tandardom pre zariadenia pracuj\u00face nad 2\u00d7 prvej kritickej ot\u00e1\u010dkovej r\u00fdchlosti.<\/li>\n<\/ul>\n<p>V ter\u00e9ne je ka\u017edodenn\u00fdm ochrann\u00fdm opatren\u00edm zachyti\u0165 varovn\u00fd pr\u00edznak sk\u00f4r, ne\u017e rotor v\u00f4bec dosiahne v\u00edriaci pohyb. Prenosn\u00fd dvojkan\u00e1lov\u00fd analyz\u00e1tor, ako je <a href=\"https:\/\/vibromera.eu\/sk\/produkt\/balanset-1\/\">Balanset-1A<\/a> umo\u017e\u0148uje in\u017einierovi zaznamena\u0165 amplit\u00fadu, <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/phase\/\">f\u00e1za<\/a> a spektrum po\u010das riaden\u00e9ho rozbehu a sledujte priamo sub-synchr\u00f3nne p\u00e1smo \u2014 ak v stabilnej charakteristike 1\u00d7 n\u00e1hle narastie ust\u00e1len\u00fd, na ot\u00e1\u010dkach nez\u00e1visl\u00fd vrchol bl\u00edzko prvej vlastnej frekvencie, rotor je na hrane v\u00edriaceho pohybu a ot\u00e1\u010dky treba zn\u00ed\u017ei\u0165. Ten ist\u00fd pr\u00edstroj n\u00e1sledne potvrd\u00ed, \u017ee z\u00e1kladn\u00e1 nevyv\u00e1\u017eenos\u0165 je v r\u00e1mci tolerancie, a vyl\u00fa\u010di ju ako prispievaj\u00face budenie. V\u00edriaci pohyb hriade\u013ea zost\u00e1va katastrof\u00e1lnym re\u017eimom poruchy, ktor\u00fd sa najlep\u0161ie rie\u0161i spr\u00e1vnou vo\u013ebou lo\u017e\u00edsk a kon\u0161trukciou; rozpoznanie jeho charakteristick\u00e9ho sub-synchr\u00f3nneho, na frekvencii ust\u00e1len\u00e9ho pr\u00edznaku je to, \u010do umo\u017e\u0148uje r\u00fdchlu diagnostiku a rozhodn\u00fa n\u00fadzov\u00fa reakciu, ktor\u00e1 chr\u00e1ni drah\u00e9 vysokoot\u00e1\u010dkov\u00e9 zariadenia.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/sk\/glossary\/\">\u2190 Sp\u00e4\u0165 na hlavn\u00fd index<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Z\u00edskajte inform\u00e1cie o vibra\u010dnom kmitan\u00ed hriade\u013ea, \u010do je siln\u00e1 samobuden\u00e1 vibra\u010dn\u00e1 nestabilita v lo\u017eisk\u00e1ch s fluidn\u00fdm filmom, ktor\u00e1 sa vyskytuje pri vysok\u00fdch r\u00fdchlostiach a sp\u00f4sobuje prudk\u00e9 kmitanie s vlastnou frekvenciou.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,111],"tags":[],"class_list":["post-235","glossary","type-glossary","status-publish","hentry","category-glossary","category-rotor-balancing"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/glossary\/235","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":2,"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/glossary\/235\/revisions"}],"predecessor-version":[{"id":102183,"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/glossary\/235\/revisions\/102183"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/media?parent=235"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/categories?post=235"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/tags?post=235"}],"curies":[{"name":"pracovn\u00fd list","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}