{"id":173,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/nodal-point\/"},"modified":"2026-07-03T10:09:35","modified_gmt":"2026-07-03T10:09:35","slug":"nodal-point","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/sk\/glossary\/nodal-point\/","title":{"rendered":"\u010co je to uzlov\u00fd bod pri vibr\u00e1ci\u00e1ch rotora?"},"content":{"rendered":"<h1>Pochopenie uzlov\u00fdch bodov pri vibr\u00e1ci\u00e1ch rotora<\/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\/173?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\/173?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\/173?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\/173?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\/173?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\/173?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\/173?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\/173?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\/173?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\/173?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\/173?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\/173?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\/173?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\/173?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>A <strong>uzlov\u00fd bod<\/strong> \u2014 naz\u00fdvan\u00fd aj uzol, alebo uzlov\u00e1 \u010diara, ke\u010f sa pohyb sleduje v troch rozmeroch \u2014 je konkr\u00e9tne miesto pozd\u013a\u017e vibruj\u00faceho <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/rotor\/\">rotor<\/a> kde <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/displacement\/\">v\u00fdchylka<\/a> zost\u00e1va nulov\u00fd, zatia\u013e \u010do rotor vibruje pri ur\u010ditom <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/natural-frequency\/\">prirodzen\u00e1 frekvencia<\/a>. Aj ke\u010f sa zvy\u0161ok hriade\u013ea oh\u00fdba a kmit\u00e1 vo svojom pohybe, uzlov\u00fd bod zost\u00e1va nehybn\u00fd vzh\u013eadom na neutr\u00e1lnu polohu hriade\u013ea&#8217;a. Uzlov\u00e9 body s\u00fa z\u00e1kladn\u00fdmi znakmi <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/mode-shape\/\">tvary m\u00f3du<\/a>, a vedie\u0165, kam pripadaj\u00fa, je rozhoduj\u00face pre <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/rotor-dynamics\/\">dynamika rotora<\/a> anal\u00fdzu, pre <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/vyvazovanie\/\">vyva\u017eovanie<\/a> strat\u00e9giu a pre rozhodovanie o tom, kam umiestni\u0165 sn\u00edma\u010de vibr\u00e1ci\u00ed. Ak ich zle pos\u00fadite, vyv\u00e1\u017eenie zlyh\u00e1 alebo monitorovac\u00ed syst\u00e9m ostane slep\u00fd vo\u010di skuto\u010dn\u00fdm vibr\u00e1ci\u00e1m; ak im rozumiete, oboje sa st\u00e1va jednoduch\u00fdm.<\/p>\n<h2>1. Uzlov\u00e9 body v r\u00f4znych vibra\u010dn\u00fdch m\u00f3doch<\/h2>\n<p>Ka\u017ed\u00fd m\u00f3d hriade\u013ea m\u00e1 svoj vlastn\u00fd vzor uzlov a kmitn\u00ed, ktor\u00fd je t\u00fdm zlo\u017eitej\u0161\u00ed, \u010d\u00edm vy\u0161\u0161ie je \u010d\u00edslo m\u00f3du.<\/p>\n<h3>Prv\u00fd re\u017eim oh\u00fdbania<\/h3>\n<p>Prv\u00fd (z\u00e1kladn\u00fd) re\u017eim ohybu m\u00e1 typicky:<\/p>\n<ul>\n<li><strong>nulov\u00e9 vn\u00fatorn\u00e9 uzly<\/strong> \u2014 pozd\u013a\u017e rozp\u00e4tia hriade\u013ea nie je \u017eiadny bod nulov\u00e9ho priehybu;<\/li>\n<li><strong>polohy lo\u017e\u00edsk ako pribli\u017en\u00e9 uzly<\/strong> \u2014 pri prosto podopretom usporiadan\u00ed p\u00f4sobia lo\u017eisk\u00e1 takmer ako uzlov\u00e9 body;<\/li>\n<li><strong>maxim\u00e1lny priehyb<\/strong> pribli\u017ene v strede rozp\u00e4tia medzi lo\u017eiskami; a<\/li>\n<li><strong>jednoduch\u00fd obl\u00fakov\u00fd tvar<\/strong> \u2014 hriade\u013e sa oh\u00fdba do jedinej plynulej krivky.<\/li>\n<\/ul>\n<h3>Druh\u00fd re\u017eim oh\u00fdbania<\/h3>\n<p>Druh\u00fd re\u017eim m\u00e1 zlo\u017eitej\u0161\u00ed vzorec:<\/p>\n<ul>\n<li><strong>jeden vn\u00fatorn\u00fd uzol<\/strong> \u2014 jedin\u00fd bod, zvy\u010dajne pribli\u017ene v strede rozp\u00e4tia, kde je priehyb nulov\u00fd;<\/li>\n<li><strong>tvar krivky S<\/strong> \u2014 hriade\u013e sa na oboch stran\u00e1ch uzla oh\u00fdba v opa\u010dn\u00fdch smeroch;<\/li>\n<li><strong>two antinodes<\/strong> \u2014 maxim\u00e1lny priehyb na ka\u017edej strane uzla; a<\/li>\n<li><strong>vy\u0161\u0161ia frekvencia<\/strong> \u2014 jeho vlastn\u00e1 frekvencia je v\u00fdrazne nad prv\u00fdm tvarom kmitania.<\/li>\n<\/ul>\n<h3>Tret\u00ed m\u00f3d a vy\u0161\u0161\u00ed<\/h3>\n<ul>\n<li><strong>third mode:<\/strong> dva vn\u00fatorn\u00e9 uzlov\u00e9 body a tri kmitne;<\/li>\n<li><strong>\u0161tvrt\u00fd tvar kmitania:<\/strong> tri uzlov\u00e9 body a \u0161tyri kmitne;<\/li>\n<li><strong>v\u0161eobecn\u00e9 pravidlo:<\/strong> tvar kmitania N m\u00e1 (N \u2212 1) vn\u00fatorn\u00fdch uzlov\u00fdch bodov; a<\/li>\n<li><strong>rast\u00faca zlo\u017eitos\u0165:<\/strong> vy\u0161\u0161ie m\u00f3dy vykazuj\u00fa postupne zlo\u017eitej\u0161ie vlnov\u00e9 obrazce.<\/li>\n<\/ul>\n<h2>2. Fyzik\u00e1lny v\u00fdznam uzlov\u00fdch bodov<\/h2>\n<h3>Nulov\u00fd priehyb - ale maxim\u00e1lne nap\u00e4tie<\/h3>\n<p>V uzlovom bode, po\u010das kmitania pri vlastnej frekvencii dan\u00e9ho tvaru kmitania:<\/p>\n<ul>\n<li>prie\u010dny posun je nulov\u00fd a hriade\u013e prech\u00e1dza svojou neutr\u00e1lnou osou;<\/li>\n<li>napriek tomu je ohybov\u00e9 nap\u00e4tie typicky maxim\u00e1lne, preto\u017ee sklon krivky priehybu je tam najstrm\u0161\u00ed; a<\/li>\n<li>\u0161mykov\u00e9 sily s\u00fa v uzle takisto najv\u00e4\u010d\u0161ie.<\/li>\n<\/ul>\n<p>Toto neintuit\u00edvne spojenie \u2014 najmen\u0161\u00ed pohyb, najv\u00e4\u010d\u0161ie nap\u00e4tie \u2014 je d\u00f4vodom, pre\u010do m\u00f4\u017ee by\u0165 uzol vynikaj\u00facim miestom na podoprenie, no zl\u00fdm miestom na posudzovanie stavu rotora len pod\u013ea pohybu.<\/p>\n<h3>Nulov\u00e1 citlivos\u0165<\/h3>\n<p>Sila alebo hmotnos\u0165 p\u00f4sobiaca v uzlovom bode m\u00e1 minim\u00e1lny vplyv na dan\u00fd konkr\u00e9tny m\u00f3d:<\/p>\n<ul>\n<li>adding <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/correction-weight\/\">korek\u010dn\u00e9 z\u00e1va\u017eia<\/a> v uzle prispieva k vyv\u00e1\u017eeniu dan\u00e9ho m\u00f3du len m\u00e1lo;<\/li>\n<li>sn\u00edma\u010de umiestnen\u00e9 v uzle zaznamen\u00e1vaj\u00fa pre dan\u00fd m\u00f3d minim\u00e1lne vibr\u00e1cie; a<\/li>\n<li>podpera alebo v\u00e4zba v uzle sotva posunie vlastn\u00fa frekvenciu m\u00f3du.<\/li>\n<\/ul>\n<h2>3. Praktick\u00e9 d\u00f4sledky pre vyva\u017eovanie<\/h2>\n<h3>V\u00fdber korek\u010dnej roviny<\/h3>\n<p>Znalos\u0165 polohy uzlov usmer\u0148uje cel\u00fd pr\u00edstup k vyva\u017eovaniu a v\u00fdrazne sa l\u00ed\u0161i medzi tuh\u00fdmi a poddajn\u00fdmi rotormi.<\/p>\n<h4>Pre pevn\u00e9 rotory<\/h4>\n<ul>\n<li>pracuj\u00fa pod prvou kritickou r\u00fdchlos\u0165ou;<\/li>\n<li>prv\u00fd m\u00f3d nie je v\u00fdrazne buden\u00fd;<\/li>\n<li>standard <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/two-plane-balancing\/\">vyva\u017eovanie v dvoch rovin\u00e1ch<\/a> bl\u00edzko koncov rotora je \u00fa\u010dinn\u00e9; a<\/li>\n<li>uzlov\u00e9 body nie s\u00fa hlavnou staros\u0165ou.<\/li>\n<\/ul>\n<h4>Pre pru\u017en\u00e9 rotory<\/h4>\n<ul>\n<li>pracuj\u00fa cez kritick\u00e9 ot\u00e1\u010dky alebo nad nimi;<\/li>\n<li>je potrebn\u00e9 zoh\u013eadni\u0165 tvary m\u00f3dov a uzlov\u00e9 body;<\/li>\n<li><strong>effective <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/correction-plane\/\">korek\u010dn\u00e9 roviny<\/a><\/strong> le\u017eia v kmitniach alebo bl\u00edzko nich \u2014 v bodoch maxim\u00e1lneho priehybu;<\/li>\n<li><strong>ne\u00fa\u010dinn\u00e9 polohy<\/strong> s\u00fa korek\u010dn\u00e9 roviny v uzle alebo bl\u00edzko neho, ktor\u00e9 dan\u00fd m\u00f3d sotva ovplyvnia; a<\/li>\n<li><strong><a href=\"https:\/\/vibromera.eu\/sk\/glossary\/modal-balancing\/\">mod\u00e1lne vyv\u00e1\u017eenie<\/a><\/strong> Pri rozde\u013eovan\u00ed korek\u010dn\u00fdch v\u00e1h explicitne zoh\u013ead\u0148uje umiestnenie uzlov\u00fdch bodov<\/li>\n<\/ul>\n<h3>Pr\u00edklad: vyva\u017eovanie v druhom m\u00f3de<\/h3>\n<p>Uva\u017eujme dlh\u00fd poddajn\u00fd hriade\u013e pracuj\u00faci nad svojou prvou kritickou r\u00fdchlos\u0165ou, ktor\u00fd bud\u00ed druh\u00fd m\u00f3d:<\/p>\n<ul>\n<li>druh\u00fd m\u00f3d m\u00e1 jeden uzlov\u00fd bod bl\u00edzko stredu rozp\u00e4tia;<\/li>\n<li>umiestnenie celej korek\u010dnej hmotnosti bl\u00edzko stredu rozp\u00e4tia \u2014 na uzol \u2014 by bolo ne\u00fa\u010dinn\u00e9;<\/li>\n<li>optim\u00e1lnou strat\u00e9giou je umiestni\u0165 korekcie do dvoch kmitn\u00ed, po jednej na ka\u017edej strane uzla; a<\/li>\n<li>rozlo\u017eenie hmotnosti mus\u00ed zodpoveda\u0165 tvaru druh\u00e9ho m\u00f3du, aby vyva\u017eovanie fungovalo.<\/li>\n<\/ul>\n<h2>4. \u00davahy o umiestnen\u00ed sn\u00edma\u010dov<\/h2>\n<h3>Strat\u00e9gia merania vibr\u00e1ci\u00ed<\/h3>\n<p>Uzlov\u00e9 body maj\u00fa rozhoduj\u00faci vplyv na <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/vibration-monitoring\/\">monitorovanie vibr\u00e1ci\u00ed<\/a>.<\/p>\n<h4>Vyhnite sa uzlov\u00fdm miestam<\/h4>\n<ul>\n<li>sn\u00edma\u010d v uzle zaznamen\u00e1va pre dan\u00fd m\u00f3d minim\u00e1lne vibr\u00e1cie;<\/li>\n<li>m\u00f4\u017ee prehliadnu\u0165 z\u00e1va\u017en\u00fd probl\u00e9m s vibr\u00e1ciami, ak je jedin\u00fdm merac\u00edm bodom; a<\/li>\n<li>M\u00f4\u017ee vyvola\u0165 falo\u0161n\u00fd dojem prijate\u013en\u00fdch \u00farovn\u00ed vibr\u00e1ci\u00ed<\/li>\n<\/ul>\n<h4>Cie\u013eov\u00e9 umiestnenia antin\u00f3dov<\/h4>\n<ul>\n<li>kmitne (antin\u00f3dy) vykazuj\u00fa maxim\u00e1lnu amplit\u00fadu vibr\u00e1ci\u00ed;<\/li>\n<li>s\u00fa najcitlivej\u0161ie na rozv\u00edjaj\u00faci sa probl\u00e9m;<\/li>\n<li>pri prvom m\u00f3de jednoducho podopret\u00e9ho rotora le\u017e\u00ed kmit\u0148a pribli\u017ene v strede rozp\u00e4tia (lo\u017eisk\u00e1 s\u00fa bl\u00edzko uzlov); v praxi sa v\u0161ak monitorovanie strojov st\u00e1le zvy\u010dajne vykon\u00e1va na teles\u00e1ch lo\u017e\u00edsk, preto\u017ee ide o pr\u00edstupn\u00e9 \u0161tandardn\u00e9 mont\u00e1\u017ene miesta; a<\/li>\n<li>pri vy\u0161\u0161\u00edch m\u00f3doch m\u00f4\u017eu by\u0165 potrebn\u00e9 medzi\u013eahl\u00e9 meracie body.<\/li>\n<\/ul>\n<h4>Viacero merac\u00edch bodov<\/h4>\n<ul>\n<li>Pri flexibiln\u00fdch rotoroch merajte na nieko\u013ek\u00fdch axi\u00e1lnych miestach<\/li>\n<li>t\u00fdm sa zabezpe\u010d\u00ed, \u017ee sa nevynech\u00e1 \u017eiadny m\u00f3d len preto, \u017ee sn\u00edma\u010d n\u00e1hodou le\u017eal v uzle;<\/li>\n<li>umo\u017e\u0148uje to experiment\u00e1lne ur\u010di\u0165 tvary m\u00f3dov; a<\/li>\n<li><a href=\"https:\/\/vibromera.eu\/sk\/glossary\/critical-machinery\/\">kritick\u00e9 zariadenia<\/a> \u010dasto nesie sn\u00edma\u010de na ka\u017edom lo\u017eisku plus uprostred rozp\u00e4tia.<\/li>\n<\/ul>\n<h2>5. Ur\u010denie polohy uzlov\u00fdch bodov<\/h2>\n<h3>Analytick\u00e1 predikcia<\/h3>\n<ul>\n<li><strong><a href=\"https:\/\/vibromera.eu\/sk\/glossary\/modal-analysis\/\">Anal\u00fdza kone\u010dn\u00fdch prvkov<\/a>:<\/strong> vypo\u010d\u00edta tvary m\u00f3dov a presne ur\u010d\u00ed uzly.<\/li>\n<li><strong>Te\u00f3ria nosn\u00edka:<\/strong> pri jednoduch\u00fdch konfigur\u00e1ci\u00e1ch predpovedaj\u00fa polohy uzlov analytick\u00e9 rie\u0161enia v uzavretom tvare.<\/li>\n<li><strong>Design tools:<\/strong> rotordynamick\u00fd softv\u00e9r zobrazuje vizu\u00e1lne ka\u017ed\u00fd tvar m\u00f3du s vyzna\u010den\u00fdmi uzlami.<\/li>\n<\/ul>\n<h3>Experiment\u00e1lna identifik\u00e1cia<\/h3>\n<p><strong>1. Impulzn\u00e9 (n\u00e1razov\u00e9) testovanie<\/strong> \u2014 udrite na hriade\u013e v nieko\u013ek\u00fdch miestach pr\u00edstrojov\u00fdm kladivom a zmerajte odozvu v mnoh\u00fdch bodoch; miesto, ktor\u00e9 pri danej frekvencii nevykazuje \u017eiadnu odozvu, je uzlov\u00fdm bodom pre dan\u00fd m\u00f3d. T\u00e1to technika je podrobne op\u00edsan\u00e1 v \u010dasti <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/bump-test\/\">bump testing<\/a> a <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/impact-testing\/\">n\u00e1razov\u00e9 sk\u00fa\u0161ky<\/a>.<\/p>\n<p><strong>2. Meranie tvaru priehybu pri prev\u00e1dzke<\/strong> \u2014 po\u010das prev\u00e1dzky v bl\u00edzkosti kritick\u00fdch ot\u00e1\u010dok zmerajte vibr\u00e1cie v mnoh\u00fdch axi\u00e1lnych bodoch, vyneste amplit\u00fadu v\u00fdchylky v z\u00e1vislosti od polohy a od\u010d\u00edtajte priese\u010dn\u00edky s nulou ako polohy uzlov. To je jadrom <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/ods-analysis\/\">anal\u00fdza tvaru priehybu pri prev\u00e1dzke<\/a>.<\/p>\n<p><strong>3. Pole pribli\u017eovac\u00edch sond<\/strong> \u2014 nain\u0161talujte nieko\u013eko bezkontaktn\u00fdch <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/proximity-probe\/\">bezdotykov\u00e9 sondy<\/a> pozd\u013a\u017e hriade\u013ea a merajte v\u00fdchylku priamo po\u010das rozbehu alebo <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/coastdown\/\">dojazd<\/a>; je to najpresnej\u0161ia experiment\u00e1lna met\u00f3da na h\u013eadanie uzlov.<\/p>\n<h2>6. Uzlov\u00e9 body vs. kmitne<\/h2>\n<p>Uzly a kmitne s\u00fa navz\u00e1jom sa dop\u013a\u0148aj\u00facimi polovicami toho ist\u00e9ho obrazu.<\/p>\n<table>\n<tr>\n<th>Uzlov\u00e9 body<\/th>\n<th>Antin\u00f3dy<\/th>\n<\/tr>\n<tr>\n<td>Nulov\u00e9 vych\u00fdlenie<\/td>\n<td>Maxim\u00e1lne vych\u00fdlenie<\/td>\n<\/tr>\n<tr>\n<td>Maxim\u00e1lny sklon ohybu a nap\u00e4tie<\/td>\n<td>Nulov\u00fd sklon ohybu<\/td>\n<\/tr>\n<tr>\n<td>N\u00edzka \u00fa\u010dinnos\u0165 pri aplik\u00e1cii alebo meran\u00ed sily<\/td>\n<td>Maxim\u00e1lna \u00fa\u010dinnos\u0165 korek\u010dn\u00fdch z\u00e1va\u017e\u00ed<\/td>\n<\/tr>\n<tr>\n<td>Ide\u00e1lne pre umiestnenie podpier (minimalizuj\u00fa pren\u00e1\u0161an\u00fa silu)<\/td>\n<td>Optim\u00e1lne polohy umiestnenia sn\u00edma\u010dov<\/td>\n<\/tr>\n<tr>\n<td>\u2014<\/td>\n<td>Najvy\u0161\u0161ie nap\u00e4tie pri kombinovanom za\u0165a\u017een\u00ed<\/td>\n<\/tr>\n<\/table>\n<h2>7. Praktick\u00e9 aplik\u00e1cie a pr\u00edpadov\u00e9 \u0161t\u00fadie<\/h2>\n<h3>Pr\u00edpad: valec papierensk\u00e9ho stroja<\/h3>\n<ul>\n<li><strong>Situ\u00e1cia:<\/strong> dlh\u00fd (6-metrov\u00fd) valec be\u017eiaci pri 1 200 ot.\/min s vysok\u00fdmi vibr\u00e1ciami.<\/li>\n<li><strong>Anal\u00fdza:<\/strong> pracoval nad prv\u00fdmi kritick\u00fdmi ot\u00e1\u010dkami a budil druh\u00fd m\u00f3d s uzlom v strede rozp\u00e4tia.<\/li>\n<li><strong>Prv\u00fd pokus:<\/strong> z\u00e1va\u017eia boli pridan\u00e9 v strede rozp\u00e4tia \u2014 v mieste pohodln\u00e9ho pr\u00edstupu \u2014 so slab\u00fdmi v\u00fdsledkami.<\/li>\n<li><strong>Rie\u0161enie:<\/strong> po zisten\u00ed, \u017ee stred rozp\u00e4tia bol uzlov\u00fdm bodom, boli z\u00e1va\u017eia premiestnen\u00e9 do \u0161tvrtinov\u00fdch bodov (kmitn\u00ed).<\/li>\n<li><strong>V\u00fdsledok:<\/strong> vibr\u00e1cie klesli o 85 %, \u00faspe\u0161n\u00e9 mod\u00e1lne vyv\u00e1\u017eenie.<\/li>\n<\/ul>\n<h3>Pr\u00edpad: monitorovanie parnej turb\u00edny<\/h3>\n<ul>\n<li><strong>Situ\u00e1cia:<\/strong> nov\u00fd monitorovac\u00ed syst\u00e9m vykazoval n\u00edzke vibr\u00e1cie napriek zn\u00e1mej nevyv\u00e1\u017eenosti.<\/li>\n<li><strong>Vy\u0161etrovanie:<\/strong> sn\u00edma\u010d bol ne\u00famyselne umiestnen\u00fd bl\u00edzko uzlov\u00e9ho bodu dominantn\u00e9ho tvaru kmitania.<\/li>\n<li><strong>Rie\u0161enie:<\/strong> pr\u00eddavn\u00e9 sn\u00edma\u010de v miestach kmitn\u00ed odhalili skuto\u010dn\u00e9 \u00farovne vibr\u00e1ci\u00ed.<\/li>\n<li><strong>Lekcia:<\/strong> pri n\u00e1vrhu monitorovacieho syst\u00e9mu v\u017edy zoh\u013eadnite tvary kmitania.<\/li>\n<\/ul>\n<h2>8. Pokro\u010dil\u00e9 \u00favahy<\/h2>\n<h3>Pohybuj\u00face sa uzly<\/h3>\n<p>V niektor\u00fdch syst\u00e9moch sa uzlov\u00e9 body pos\u00favaj\u00fa s prev\u00e1dzkov\u00fdmi podmienkami:<\/p>\n<ul>\n<li>tuhos\u0165 lo\u017eiska z\u00e1visl\u00e1 od ot\u00e1\u010dok pos\u00fava polohy uzlov;<\/li>\n<li>teplota ovplyv\u0148uje tuhos\u0165 hriade\u013ea;<\/li>\n<li>odozva m\u00f4\u017ee by\u0165 z\u00e1visl\u00e1 od za\u0165a\u017eenia; a<\/li>\n<li>asymetrick\u00e9 syst\u00e9my m\u00f4\u017eu ma\u0165 odli\u0161n\u00e9 uzly pre horizont\u00e1lny a vertik\u00e1lny pohyb.<\/li>\n<\/ul>\n<h3>Pribli\u017en\u00e9 vs. skuto\u010dn\u00e9 uzly<\/h3>\n<ul>\n<li><strong>True nodes:<\/strong> presn\u00e9 body nulov\u00e9ho priehybu v idealizovanom syst\u00e9me.<\/li>\n<li><strong>Pribli\u017en\u00e9 uzly:<\/strong> miesta s ve\u013emi n\u00edzkym \u2014 ale nie presne nulov\u00fdm \u2014 priehybom v re\u00e1lnom syst\u00e9me s <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/damping\/\">tlmenie<\/a> a \u010fal\u0161\u00edmi neide\u00e1lnymi vplyvmi.<\/li>\n<li><strong>Praktick\u00fd d\u00f4sledok:<\/strong> skuto\u010dn\u00fd uzol je <em>region<\/em> oblas\u0165 n\u00edzkeho priehybu, a nie presn\u00fd matematick\u00fd bod.<\/li>\n<\/ul>\n<h2>9. Uplatnenie v praxi<\/h2>\n<p>Pre tuh\u00e9 rotory, ktor\u00e9 tvoria v\u00e4\u010d\u0161inu priemyseln\u00fdch strojov \u2014 \u010derpadl\u00e1, ventil\u00e1tory, motory a podobne \u2014 je pracovn\u00e9 pravidlo upokojuj\u00faco jednoduch\u00e9: zosta\u0148te pod prv\u00fdmi kritick\u00fdmi ot\u00e1\u010dkami a problematick\u00e9 ohybov\u00e9 uzly sa nikdy neobjavia, tak\u017ee dve korek\u010dn\u00e9 roviny bl\u00edzko koncov rotora posta\u010dia. Prenosn\u00fd dvojkan\u00e1lov\u00fd analyz\u00e1tor, ako je <a href=\"https:\/\/vibromera.eu\/sk\/produkt\/balanset-1\/\">Balanset-1A<\/a> vykon\u00e1va pr\u00e1ve toto jedno- alebo dvojrovinn\u00e9 <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/vyvazovanie-pola\/\">vyva\u017eovanie na mieste<\/a> vo vlastn\u00fdch lo\u017eisk\u00e1ch stroja, pri\u010dom meria amplit\u00fadu a <a href=\"https:\/\/vibromera.eu\/sk\/glossary\/phase\/\">f\u00e1za<\/a> na v\u00fdpo\u010det z\u00e1va\u017e\u00ed. Ke\u010f mus\u00ed rotor prejs\u0165 cez kritick\u00e9 ot\u00e1\u010dky alebo nad ne, tie ist\u00e9 \u00fadaje o amplit\u00fade a f\u00e1ze odobrat\u00e9 vo viacer\u00fdch axi\u00e1lnych bodoch umo\u017e\u0148uj\u00fa analytikovi zmapova\u0165 tvar vlastn\u00e9ho kmitu a potvrdi\u0165, ktor\u00e1 rovina je kmit\u0148ou, e\u0161te predt\u00fdm, ne\u017e sa nasad\u00ed ak\u00e9ko\u013evek z\u00e1va\u017eie \u2014 rozdiel medzi 85 % zlep\u0161en\u00edm a zmaren\u00fdm pokusom. Pochopenie uzlov\u00fdch bodov je skr\u00e1tka to, \u010do premie\u0148a \u00fadaje o vibr\u00e1ci\u00e1ch na spr\u00e1vne rozhodnutie pri vyva\u017eovan\u00ed.<\/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 uzlov\u00fdch bodoch, miestach na vibruj\u00facom hriadeli, kde je priehyb nulov\u00fd, \u010do je k\u013e\u00fa\u010dov\u00e9 pre pochopenie tvarov vibr\u00e1ci\u00ed, vyv\u00e1\u017eenia a umiestnenia senzorov v rotuj\u00facich strojoch.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,111],"tags":[],"class_list":["post-173","glossary","type-glossary","status-publish","hentry","category-glossary","category-rotor-balancing"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/glossary\/173","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\/173\/revisions"}],"predecessor-version":[{"id":102180,"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/glossary\/173\/revisions\/102180"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/media?parent=173"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/categories?post=173"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/sk\/wp-json\/wp\/v2\/tags?post=173"}],"curies":[{"name":"pracovn\u00fd list","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}