{"id":116,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/fatigue\/"},"modified":"2026-05-23T22:51:15","modified_gmt":"2026-05-23T22:51:15","slug":"fatigue","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/cs\/glossary\/fatigue\/","title":{"rendered":"Co je mechanick\u00e1 \u00fanava? Porucha cyklick\u00fdm nam\u00e1h\u00e1n\u00edm"},"content":{"rendered":"<h1>Pochopen\u00ed mechanick\u00e9 \u00fanavy<\/h1>\n\t\t<section class=\"woocommerce hestia-shop products is-shortcode\" id=\"products\" data-sorder=\"hestia_shop\" >\n\t\t\t\t\t\t<div class=\"\">\n\t\t\t\t\t\t<div class=\"hestia-shop-content\">\n\t\t\t<div class=\"row\" data-aos=\"fade-up\" >\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/cs\/product\/balanset-1\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/cs\/product\/balanset-1\/\" title=\"P\u0159enosn\u00fd vyva\u017eova\u010d a analyz\u00e1tor vibrac\u00ed Balanset-1A\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Kompletn\u00ed sada p\u0159enosn\u00e9ho vyva\u017eova\u010de a analyz\u00e1toru vibrac\u00ed Balanset-1A\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/09\/77-e1693745667801-272x182.webp 272w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/cs\/product-category\/devices\/\" rel=\"tag\">Za\u0159\u00edzen\u00ed<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/cs\/product\/balanset-1\/\" title=\"P\u0159enosn\u00fd vyva\u017eova\u010d a analyz\u00e1tor vibrac\u00ed Balanset-1A\">P\u0159enosn\u00fd vyva\u017eova\u010d a analyz\u00e1tor vibrac\u00ed Balanset-1A<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>1,975.00<\/span> + DPH (pokud se uplat\u0148uje)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/cs\/wp-json\/wp\/v2\/glossary\/116?add-to-cart=986\" data-quantity=\"1\" data-product_id=\"986\" data-product_sku=\"BS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"P\u0159idat do ko\u0161\u00edku\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"P\u0159idat do ko\u0161\u00edku\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/cs\/wp-json\/wp\/v2\/glossary\/116?add-to-cart=986\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_986\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"986\" data-product_sku=\"BS-1\" aria-label=\"P\u0159idat do ko\u0161\u00edku: \u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d\" rel=\"nofollow\" data-success_message=\"\u201cPortable balancer &amp; Vibration analyzer Balanset-1A\u201d byl p\u0159id\u00e1n do ko\u0161\u00edku\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">P\u0159idat do ko\u0161\u00edku<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_986\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/cs\/product\/vibration-sensor\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/cs\/product\/vibration-sensor\/\" title=\"Sn\u00edma\u010d vibrac\u00ed\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Sn\u00edma\u010d vibrac\u00ed Balanset-1A zbl\u00edzka\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-3.webp 1280w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/cs\/product-category\/parts\/\" rel=\"tag\">D\u00edly<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/cs\/product\/vibration-sensor\/\" title=\"Sn\u00edma\u010d vibrac\u00ed\">Sn\u00edma\u010d vibrac\u00ed<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>90.00<\/span> + DPH (pokud se uplat\u0148uje)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/cs\/wp-json\/wp\/v2\/glossary\/116?add-to-cart=1820\" data-quantity=\"1\" data-product_id=\"1820\" data-product_sku=\"VS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"P\u0159idat do ko\u0161\u00edku\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"P\u0159idat do ko\u0161\u00edku\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/cs\/wp-json\/wp\/v2\/glossary\/116?add-to-cart=1820\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1820\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1820\" data-product_sku=\"VS-1\" aria-label=\"P\u0159idat do ko\u0161\u00edku: \u201cVibration sensor\u201d\" rel=\"nofollow\" data-success_message=\"\u201cVibration sensor\u201d byl p\u0159id\u00e1n do ko\u0161\u00edku\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">P\u0159idat do ko\u0161\u00edku<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1820\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/cs\/product\/optical-sensor-for-balanset-and-arbalance\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/cs\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optick\u00fd senzor (laserov\u00fd ot\u00e1\u010dkom\u011br)\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Optick\u00fd senzor (laserov\u00fd ot\u00e1\u010dkom\u011br)\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-1536x1023.webp 1536w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/ZKqzGXSCCBU.webp 1600w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/cs\/product-category\/parts\/\" rel=\"tag\">D\u00edly<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/cs\/product\/optical-sensor-for-balanset-and-arbalance\/\" title=\"Optick\u00fd senzor (laserov\u00fd ot\u00e1\u010dkom\u011br)\">Optick\u00fd senzor (laserov\u00fd ot\u00e1\u010dkom\u011br)<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>124.00<\/span> + DPH (pokud se uplat\u0148uje)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/cs\/wp-json\/wp\/v2\/glossary\/116?add-to-cart=1832\" data-quantity=\"1\" data-product_id=\"1832\" data-product_sku=\"Tach-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"P\u0159idat do ko\u0161\u00edku\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"P\u0159idat do ko\u0161\u00edku\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/cs\/wp-json\/wp\/v2\/glossary\/116?add-to-cart=1832\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1832\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1832\" data-product_sku=\"Tach-1\" aria-label=\"P\u0159idat do ko\u0161\u00edku: \u201cOptical Sensor (Laser Tachometer)\u201d\" rel=\"nofollow\" data-success_message=\"\u201cOptical Sensor (Laser Tachometer)\u201d byl p\u0159id\u00e1n do ko\u0161\u00edku\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">P\u0159idat do ko\u0161\u00edku<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1832\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/cs\/product\/balanset-4\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/cs\/product\/balanset-4\/\" title=\"Balanset-4\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Sada pro vyva\u017eov\u00e1n\u00ed rotor\u016f Vibromera: p\u0159epravn\u00ed kuf\u0159\u00edk, v\u00edcekan\u00e1lov\u00fd zesilova\u010d sign\u00e1lu, ru\u010dn\u00ed analyz\u00e1tor, magnetick\u00e1 z\u00e1kladna, vibra\u010dn\u00ed senzory a spir\u00e1lov\u00e9 kabely.\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-18x12.webp 18w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2022\/12\/balkom4.webp 640w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/cs\/product-category\/devices\/\" rel=\"tag\">Za\u0159\u00edzen\u00ed<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/cs\/product\/balanset-4\/\" title=\"Balanset-4\">Balanset-4<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>6,803.00<\/span> + DPH (pokud se uplat\u0148uje)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/cs\/wp-json\/wp\/v2\/glossary\/116?add-to-cart=1833\" data-quantity=\"1\" data-product_id=\"1833\" data-product_sku=\"BS-4\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"P\u0159idat do ko\u0161\u00edku\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"P\u0159idat do ko\u0161\u00edku\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/cs\/wp-json\/wp\/v2\/glossary\/116?add-to-cart=1833\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1833\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1833\" data-product_sku=\"BS-4\" aria-label=\"P\u0159idat do ko\u0161\u00edku: \u201cBalanset-4\u201d\" rel=\"nofollow\" data-success_message=\"\u201cBalanset-4\u201d byl p\u0159id\u00e1n do ko\u0161\u00edku\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">P\u0159idat do ko\u0161\u00edku<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1833\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div><!-- \/.row --><div class=\"row\">\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/cs\/product\/magnet-stand\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/cs\/product\/magnet-stand\/\" title=\"Magnetick\u00fd stojan Insize-60 kgf\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Magnetick\u00e1 z\u00e1kladna.\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-1024x682.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2018\/05\/IMG-36.webp 1280w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/cs\/product-category\/parts\/\" rel=\"tag\">D\u00edly<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/cs\/product\/magnet-stand\/\" title=\"Magnetick\u00fd stojan Insize-60 kgf\">Magnetick\u00fd stojan Insize-60 kgf<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>46.00<\/span> + DPH (pokud se uplat\u0148uje)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/cs\/wp-json\/wp\/v2\/glossary\/116?add-to-cart=1852\" data-quantity=\"1\" data-product_id=\"1852\" data-product_sku=\"MS-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"P\u0159idat do ko\u0161\u00edku\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"P\u0159idat do ko\u0161\u00edku\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/cs\/wp-json\/wp\/v2\/glossary\/116?add-to-cart=1852\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_1852\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"1852\" data-product_sku=\"MS-1\" aria-label=\"P\u0159idat do ko\u0161\u00edku: \u201cMagnetic Stand Insize-60-kgf\u201d\" rel=\"nofollow\" data-success_message=\"\u201cMagnetic Stand Insize-60-kgf\u201d byl p\u0159id\u00e1n do ko\u0161\u00edku\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">P\u0159idat do ko\u0161\u00edku<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_1852\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/cs\/product\/reflective-tape\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/cs\/product\/reflective-tape\/\" title=\"Reflexn\u00ed p\u00e1ska\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Reflexn\u00ed p\u00e1ska\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-16x12.webp 16w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-460x306.webp 460w, https:\/\/vibromera.eu\/wp-content\/uploads\/2023\/05\/s-l1600-272x182.webp 272w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/cs\/product-category\/parts\/\" rel=\"tag\">D\u00edly<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/cs\/product\/reflective-tape\/\" title=\"Reflexn\u00ed p\u00e1ska\">Reflexn\u00ed p\u00e1ska<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>10.00<\/span> + DPH (pokud se uplat\u0148uje)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/cs\/wp-json\/wp\/v2\/glossary\/116?add-to-cart=2329\" data-quantity=\"1\" data-product_id=\"2329\" data-product_sku=\"rt-1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"P\u0159idat do ko\u0161\u00edku\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"P\u0159idat do ko\u0161\u00edku\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/cs\/wp-json\/wp\/v2\/glossary\/116?add-to-cart=2329\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_2329\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"2329\" data-product_sku=\"rt-1\" aria-label=\"P\u0159idat do ko\u0161\u00edku: \u201cReflective tape\u201d\" rel=\"nofollow\" data-success_message=\"\u201cReflective tape\u201d byl p\u0159id\u00e1n do ko\u0161\u00edku\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">P\u0159idat do ko\u0161\u00edku<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_2329\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"col-ms-6 col-sm-6 col-md-3 shop-item\">\n\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/cs\/product\/dynamic-balancer-balanset-1a\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"card-image\">\n\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/vibromera.eu\/cs\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dynamick\u00fd vyva\u017eova\u010d &quot;Balanset-1A&quot; OEM\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"230\" height=\"153\" src=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-230x153.webp\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail\" alt=\"Obsah sady Balanset-1A s jednotkou rozhran\u00ed, senzory, ot\u00e1\u010dkom\u011brem a p\u0159\u00edslu\u0161enstv\u00edm\" srcset=\"https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-230x153.webp 230w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-600x400.webp 600w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-300x200.webp 300w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-1024x683.webp 1024w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-768x512.webp 768w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-1536x1024.webp 1536w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-2048x1366.webp 2048w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-360x240.webp 360w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-272x182.webp 272w, https:\/\/vibromera.eu\/wp-content\/uploads\/2021\/11\/\u0411\u0430\u043b\u043a\u043e\u043c\u041a\u0438\u0442-scaled-e1732998877834.webp 708w\" sizes=\"auto, (max-width: 230px) 100vw, 230px\" \/>\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<div class=\"ripple-container\"><\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"content\">\n\t\t\t\t\t\t\t\t<span class=\"category\"><a href=\"https:\/\/vibromera.eu\/cs\/product-category\/devices\/\" rel=\"tag\">Za\u0159\u00edzen\u00ed<\/a><\/span>\n\t\t\t\t\t\t\t\t<h4 class=\"card-title\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"shop-item-title-link\" href=\"https:\/\/vibromera.eu\/cs\/product\/dynamic-balancer-balanset-1a\/\" title=\"Dynamick\u00fd vyva\u017eova\u010d &quot;Balanset-1A&quot; OEM\">Dynamick\u00fd vyva\u017eova\u010d \"Balanset-1A\" OEM<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t<div class=\"footer\">\n\n\t\t\t\t\t\t\t\t\t<div class=\"price\"><h4><span class=\"woocommerce-Price-amount amount\"><span class=\"woocommerce-Price-currencySymbol\">\u20ac<\/span>1,735.00<\/span> + DPH (pokud se uplat\u0148uje)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"stats\">\n\t\t\t\t\t\t\t\t\t\t<a rel=\"nofollow\" href=\"\/cs\/wp-json\/wp\/v2\/glossary\/116?add-to-cart=4193\" data-quantity=\"1\" data-product_id=\"4193\" data-product_sku=\"BS-1OEM\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart btn btn-just-icon btn-simple btn-default\" title=\"P\u0159idat do ko\u0161\u00edku\" data-no-translation-title=\"\"><i rel=\"tooltip\" data-original-title=\"P\u0159idat do ko\u0161\u00edku\" class=\"fas fa-cart-plus\" data-no-translation-data-original-title=\"\"><\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a><a href=\"\/cs\/wp-json\/wp\/v2\/glossary\/116?add-to-cart=4193\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_4193\" data-quantity=\"1\" class=\"button product_type_simple add_to_cart_button ajax_add_to_cart\" data-product_id=\"4193\" data-product_sku=\"BS-1OEM\" aria-label=\"P\u0159idat do ko\u0161\u00edku: \u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d\" rel=\"nofollow\" data-success_message=\"\u201cDynamic balancer \u201cBalanset-1A\u201d OEM\u201d byl p\u0159id\u00e1n do ko\u0161\u00edku\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\" data-no-translation-data-success_message=\"\">P\u0159idat do ko\u0161\u00edku<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_4193\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/section>\n\t\t\n<p><strong>Mechanick\u00e1 \u00fanava<\/strong> (naz\u00fdvan\u00e1 tak\u00e9 \u00fanava materi\u00e1lu nebo jednodu\u0161e \u00fanava) je postupn\u00e9, lokalizovan\u00e9 po\u0161kozen\u00ed struktury, kter\u00e9 vznik\u00e1, kdy\u017e je materi\u00e1l vystaven opakovan\u00fdm cykl\u016fm nam\u00e1h\u00e1n\u00ed nebo deformace \u2013 a to i v p\u0159\u00edpad\u011b, \u017ee \u0161pi\u010dkov\u00e9 nap\u011bt\u00ed v ka\u017ed\u00e9m cyklu z\u016fst\u00e1v\u00e1 v\u00fdrazn\u011b pod mez\u00ed pevnosti v tahu nebo mez\u00ed kluzu dan\u00e9ho materi\u00e1lu. Mikroskopick\u00e9 trhliny se objevuj\u00ed a zv\u011bt\u0161uj\u00ed v pr\u016fb\u011bhu tis\u00edc\u016f, milion\u016f nebo dokonce miliard cykl\u016f, dokud zb\u00fdvaj\u00edc\u00ed pr\u016f\u0159ez ji\u017e nedok\u00e1\u017ee n\u00e9st zat\u00ed\u017een\u00ed a sou\u010d\u00e1st se zlom\u00ed, \u010dasto bez jak\u00e9hokoli viditeln\u00e9ho varov\u00e1n\u00ed. U rotuj\u00edc\u00edch stroj\u016f se jedn\u00e1 o nej\u010dast\u011bj\u0161\u00ed zp\u016fsob poruchy, kter\u00fd ti\u0161e zkracuje \u017eivotnost <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/rotor\/\">rotory<\/a>, h\u0159\u00eddele, ozuben\u00e1 kola, <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/bearing-defects\/\">lo\u017eiska<\/a>, spojovac\u00ed prvky a nosn\u00e9 konstrukce, p\u0159i\u010dem\u017e je p\u0159\u00edmo ovliv\u0148ov\u00e1n cyklick\u00fdm nam\u00e1h\u00e1n\u00edm, kter\u00e9 <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/vibration\/\">vibrace<\/a> klade na stroj.<\/p>\n<h2>1. Definice: Co je to \u00fanava \u2013 a pro\u010d je tak nebezpe\u010dn\u00e1<\/h2>\n<p>\u00danava je zr\u00e1dn\u00e1 pr\u00e1v\u011b proto, \u017ee vyvrac\u00ed intuitivn\u00ed p\u0159edstavu, \u017ee sou\u010d\u00e1st je \u201ebezpe\u010dn\u00e1\u201c, pokud \u017e\u00e1dn\u00e9 jednotliv\u00e9 zat\u00ed\u017een\u00ed nep\u0159ekro\u010d\u00ed jej\u00ed jmenovitou pevnost. P\u0159i <em>repeated<\/em> p\u0159i zat\u011b\u017eov\u00e1n\u00ed m\u016f\u017ee b\u00fdt nam\u00e1h\u00e1n\u00ed, kter\u00e9 je p\u0159i jednor\u00e1zov\u00e9m p\u016fsoben\u00ed ne\u0161kodn\u00e9, smrteln\u00e9, pokud se opakuje deset milion\u016fkr\u00e1t. Po\u0161kozen\u00ed se nen\u00e1padn\u011b hromad\u00ed, sou\u010d\u00e1st nevykazuje \u017e\u00e1dn\u00e9 zjevn\u00e9 zn\u00e1mky opot\u0159eben\u00ed a pak se n\u00e1hle uvoln\u00ed b\u011bhem b\u011b\u017en\u00e9ho provozu. Jeliko\u017e se u rotuj\u00edc\u00edch za\u0159\u00edzen\u00ed sou\u010d\u00e1sti neust\u00e1le opakovan\u011b nam\u00e1haj\u00ed \u2013 h\u0159\u00eddel za\u017e\u00edv\u00e1 p\u0159i ka\u017ed\u00e9 ot\u00e1\u010dce jeden \u00fapln\u00fd cyklus zm\u011bny nam\u00e1h\u00e1n\u00ed \u2013, i m\u00edrn\u00e9 <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/unbalance\/\">nevyv\u00e1\u017eenost<\/a> nebo <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/misalignment\/\">nesouosost<\/a> m\u016f\u017ee b\u011bhem n\u011bkolika t\u00fddn\u016f dos\u00e1hnout obrovsk\u00e9ho po\u010dtu cykl\u016f. Porozum\u011bn\u00ed \u00fanav\u011b materi\u00e1lu je proto z\u00e1sadn\u00ed jak pro bezpe\u010dnou konstrukci stroj\u016f, tak pro spolehliv\u00fd ka\u017edodenn\u00ed provoz.<\/p>\n<h2>2. T\u0159i f\u00e1ze \u00fanavov\u00e9ho selh\u00e1n\u00ed<\/h2>\n<p>\u00danavov\u00e9 selh\u00e1n\u00ed nen\u00ed jednor\u00e1zov\u00e1 ud\u00e1lost, ale proces, kter\u00fd se odehr\u00e1v\u00e1 v pr\u016fb\u011bhu cel\u00e9 \u017eivotnosti sou\u010d\u00e1sti. Obvykle se rozli\u0161uj\u00ed t\u0159i f\u00e1ze.<\/p>\n<h3>F\u00e1ze 1: Iniciace trhliny<\/h3>\n<ul>\n<li><strong>Um\u00edst\u011bn\u00ed:<\/strong> Trhliny vznikaj\u00ed v m\u00edstech koncentrace nap\u011bt\u00ed \u2013 v otvorech, zaoblen\u00fdch roz\u00edch, dr\u00e1\u017ek\u00e1ch, stop\u00e1ch po obr\u00e1b\u011bn\u00ed nebo povrchov\u00fdch vad\u00e1ch \u2013, kde doch\u00e1z\u00ed ke zv\u00fd\u0161en\u00ed lok\u00e1ln\u00edho nap\u011bt\u00ed.<\/li>\n<li><strong>Mechanismus:<\/strong> Opakovan\u00e1 lok\u00e1ln\u00ed plastick\u00e1 deformace vede ke vzniku mikroskopick\u00e9 trhliny, kter\u00e1 je obvykle men\u0161\u00ed ne\u017e 0,1 mm.<\/li>\n<li><strong>Trv\u00e1n\u00ed:<\/strong> Na hladk\u00fdch, kvalitn\u011b opracovan\u00fdch povr\u0161\u00edch m\u016f\u017ee po\u010d\u00e1te\u010dn\u00ed f\u00e1ze spot\u0159ebovat 50\u201390 % celkov\u00e9 \u00fanavov\u00e9 \u017eivotnosti.<\/li>\n<li><strong>Detekce:<\/strong> Mimo\u0159\u00e1dn\u011b obt\u00ed\u017en\u00e9; po\u010d\u00ednaj\u00edc\u00ed trhlinu nelze b\u011bhem provozu obvykle odhalit.<\/li>\n<\/ul>\n<h3>F\u00e1ze 2: \u0160\u00ed\u0159en\u00ed trhliny<\/h3>\n<ul>\n<li><strong>Proces:<\/strong> Trhlina se s ka\u017ed\u00fdm cyklem nam\u00e1h\u00e1n\u00ed posune o nepatrn\u00fd p\u0159\u00edr\u016fstek.<\/li>\n<li><strong>M\u00edra:<\/strong> R\u016fst se \u0159\u00edd\u00ed Paris\u016fv z\u00e1kon \u2013 rychlost r\u016fstu trhlin je \u00fam\u011brn\u00e1 rozsahu faktoru intenzity nap\u011bt\u00ed umocn\u011bn\u00e9mu na ur\u010ditou mocninu.<\/li>\n<li><strong>Vzhled:<\/strong> Hladk\u00e9, obvykle p\u016flkruhov\u00e9 nebo eliptick\u00e9 \u010delo trhliny<\/li>\n<li><strong>Beach marks:<\/strong> Soust\u0159edn\u00e9 &#8220;mu\u0161lovit\u00e9&#8221; vzory na povrchu lomu zachycuj\u00ed postupn\u00e9 f\u00e1ze r\u016fstu trhliny a p\u0159edstavuj\u00ed klasick\u00fd znak \u00fanavy materi\u00e1lu.<\/li>\n<li><strong>Trv\u00e1n\u00ed:<\/strong> \u010casto 10\u201350 % celkov\u00e9 d\u00e9lky \u017eivota.<\/li>\n<\/ul>\n<h3>F\u00e1ze 3: Kone\u010dn\u00fd lom<\/h3>\n<ul>\n<li>Trhlina dos\u00e1hne kritick\u00e9 d\u00e9lky, p\u0159i kter\u00e9 ji\u017e zb\u00fdvaj\u00edc\u00ed vaz nedok\u00e1\u017ee zat\u00ed\u017een\u00ed un\u00e9st.<\/li>\n<li>Zb\u00fdvaj\u00edc\u00ed pr\u016f\u0159ez sel\u017ee n\u00e1hle a katastrof\u00e1ln\u011b.<\/li>\n<li>Tato z\u00f3na kone\u010dn\u00e9ho lomu je drsn\u00e1 a nepravideln\u00e1, co\u017e ost\u0159e kontrastuje s hladkou, vyle\u0161t\u011bnou z\u00f3nou \u00fanavy.<\/li>\n<li>K tomu doch\u00e1z\u00ed t\u00e9m\u011b\u0159 v\u017edy bez varov\u00e1n\u00ed, b\u011bhem jinak b\u011b\u017en\u00e9ho provozu.<\/li>\n<\/ul>\n<p>\u010cten\u00ed zlomen\u00e9 \u010d\u00e1sti pozp\u00e1tku \u2013 od oblasti hrub\u00e9ho p\u0159et\u00ed\u017een\u00ed p\u0159es pl\u00e1\u017ee a\u017e po m\u00edsto iniciace trhliny \u2013 je z\u00e1kladn\u00ed dovednost\u00ed p\u0159i anal\u00fdze poruch a \u010dasto umo\u017e\u0148uje p\u0159esn\u011b ur\u010dit, kter\u00e1 koncentrace nap\u011bt\u00ed byla p\u0159\u00ed\u010dinou probl\u00e9mu.<\/p>\n<h3>\u00danava p\u0159i vysok\u00e9m po\u010dtu cykl\u016f vs. \u00fanava p\u0159i n\u00edzk\u00e9m po\u010dtu cykl\u016f<\/h3>\n<p>In\u017een\u00fd\u0159i d\u00e1le rozli\u0161uj\u00ed <strong>vysokocyklov\u00e1 \u00fanava<\/strong> (n\u00edzk\u00e9 nap\u011bt\u00ed, p\u0159ev\u00e1\u017en\u011b elastick\u00e9 chov\u00e1n\u00ed, \u017eivotnost p\u0159esahuj\u00edc\u00ed zhruba 10\u2074\u201310\u2075 cykl\u016f \u2013 co\u017e odpov\u00edd\u00e1 podm\u00ednk\u00e1m v\u011bt\u0161iny sou\u010d\u00e1st\u00ed rota\u010dn\u00edch stroj\u016f) z <strong>n\u00edzkocyklov\u00e1 \u00fanava<\/strong> (vysok\u00e1 nam\u00e1h\u00e1n\u00ed s v\u00fdrazn\u00fdm plastick\u00fdm deformov\u00e1n\u00edm v ka\u017ed\u00e9m cyklu, kr\u00e1tk\u00e1 \u017eivotnost, typick\u00e1 pro teplotn\u00ed cykly a extr\u00e9mn\u00ed p\u0159echodov\u00e9 zat\u00ed\u017een\u00ed). Oceli se \u010dasto vyzna\u010duj\u00ed <em>mez \u00fanavy<\/em> \u2014 nap\u011bt\u00ed, pod jeho\u017e hodnotou se \u00fanavov\u00e1 \u017eivotnost st\u00e1v\u00e1 prakticky nekone\u010dnou \u2014 zat\u00edmco mnoho hlin\u00edkov\u00fdch a ne\u017eelezn\u00fdch slitin nem\u00e1 \u017e\u00e1dnou skute\u010dnou mez \u00fanavy a nakonec dojde k jejich poru\u0161e p\u0159i jak\u00e9koli amplitud\u011b nap\u011bt\u00ed.<\/p>\n<h2>3. \u00danava materi\u00e1lu u rota\u010dn\u00edch stroj\u016f<\/h2>\n<h3>\u00danava h\u0159\u00eddele<\/h3>\n<ul>\n<li><strong>P\u0159\u00ed\u010dina:<\/strong> Ohybov\u00e1 nap\u011bt\u00ed zp\u016fsoben\u00e1 nevyv\u00e1\u017eenost\u00ed, nesouosost\u00ed nebo p\u0159\u00ed\u010dn\u00fdmi zat\u00ed\u017een\u00edmi.<\/li>\n<li><strong>Stress cycle:<\/strong> U ot\u00e1\u010dej\u00edc\u00edho se h\u0159\u00eddele vystaven\u00e9ho st\u00e1l\u00e9mu ohybov\u00e9mu nam\u00e1h\u00e1n\u00ed doch\u00e1z\u00ed p\u0159i ka\u017ed\u00e9 ot\u00e1\u010dce k \u00fapln\u00e9mu obr\u00e1cen\u00ed nap\u011bt\u00ed (\u00fapln\u00e9 obr\u00e1cen\u00ed, \u00fanava zp\u016fsoben\u00e1 ot\u00e1\u010den\u00edm a ohybem).<\/li>\n<li><strong>B\u011b\u017en\u00e1 m\u00edsta:<\/strong> Dr\u00e1\u017eky pro pero, zm\u011bny pr\u016fm\u011bru, osazen\u00ed a lisovan\u00e9 spoje \u2013 to v\u0161e jsou m\u00edsta zv\u00fd\u0161en\u00e9ho nam\u00e1h\u00e1n\u00ed.<\/li>\n<li><strong>Typick\u00e1 \u017eivotnost:<\/strong> 10\u2077 a\u017e 10\u2079 cykl\u016f, co\u017e odpov\u00edd\u00e1 n\u011bkolika let\u016fm provozu.<\/li>\n<li><strong>Detekce:<\/strong> \u0160\u00ed\u0159\u00edc\u00ed se p\u0159\u00ed\u010dn\u00e1 trhlina se otev\u00edr\u00e1 a zav\u00edr\u00e1 jednou za ot\u00e1\u010dku, \u010d\u00edm\u017e vznik\u00e1 charakteristick\u00fd 1\u00d7 a 2\u00d7 <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/shaft-crack\/\">shaft-crack<\/a> vibra\u010dn\u00ed charakteristika; \u010dasto se s n\u00ed zam\u011b\u0148uje stacion\u00e1rn\u00ed pr\u016fhyb h\u0159\u00eddele, tak\u017ee f\u00e1zov\u00e9 chov\u00e1n\u00ed v pr\u016fb\u011bhu <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/critical-speed\/\">kritick\u00e1 rychlost<\/a> je t\u0159eba zkontrolovat.<\/li>\n<\/ul>\n<h3>\u00danava lo\u017eiska<\/h3>\n<ul>\n<li><strong>Mechanismus:<\/strong> \u00danava zp\u016fsoben\u00e1 valiv\u00fdm kontaktem v d\u016fsledku cyklick\u00fdch hertzovsk\u00fdch kontaktn\u00edch nap\u011bt\u00ed pod povrchem.<\/li>\n<li><strong>V\u00fdsledek:<\/strong> <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/spalling\/\">Odlupov\u00e1n\u00ed<\/a> \u2014 odlupov\u00e1n\u00ed lo\u017eiskov\u00fdch krou\u017ek\u016f nebo valiv\u00fdch t\u011bles.<\/li>\n<li><strong>L10 life:<\/strong> Statistick\u00e1 \u017eivotnost, p\u0159i kter\u00e9 dojde u 10 % populace lo\u017eisek k poru\u0161e v d\u016fsledku \u00fanavy z valiv\u00e9ho kontaktu; jedn\u00e1 se o standardn\u00ed konstruk\u010dn\u00ed z\u00e1klad.<\/li>\n<li><strong>Detekce:<\/strong> Jakmile dojde k odlupov\u00e1n\u00ed, charakteristick\u00e9 <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/bearing-fault-frequencies\/\">frekvence poruch lo\u017eisek<\/a> se objevuj\u00ed ve spektru a v <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/envelope-analysis\/\">obalov\u00e1 anal\u00fdza<\/a>.<\/li>\n<\/ul>\n<h3>\u00danava zub\u016f ozuben\u00e9ho kola<\/h3>\n<ul>\n<li><strong>\u00danava z ohybu:<\/strong> Trhliny vznikaj\u00ed v oblasti p\u0159echodu zubu a ko\u0159ene, kter\u00e1 je na zat\u00ed\u017een\u00e9m zubu vystavena nejv\u011bt\u0161\u00edmu nam\u00e1h\u00e1n\u00ed.<\/li>\n<li><strong>Kontaktn\u00ed \u00fanava:<\/strong> Povrch <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/pitting\/\">d\u016flkov\u00e1n\u00ed<\/a> a odlupov\u00e1n\u00ed na pracovn\u00ed stran\u011b.<\/li>\n<li><strong>Cykly:<\/strong> Ka\u017ed\u00e9 zapojen\u00ed zub\u016f p\u0159edstavuje jeden cyklus nam\u00e1h\u00e1n\u00ed, tak\u017ee po\u010det cykl\u016f rychle nar\u016fst\u00e1.<\/li>\n<li><strong>Selh\u00e1n\u00ed:<\/strong> \u00dapln\u00e9 zlomen\u00ed zubu nebo postupn\u00e9 opot\u0159eben\u00ed povrchu, kter\u00e9 jsou patrn\u00e9 na <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/gear-mesh-frequency\/\">frekvence z\u00e1b\u011bru ozuben\u00fdch kol<\/a> a jeho postrann\u00ed p\u00e1sma.<\/li>\n<\/ul>\n<h3>\u00danava spojovac\u00edch prvk\u016f<\/h3>\n<ul>\n<li>\u0160rouby vystaven\u00e9 st\u0159\u00eddav\u00e9mu nam\u00e1h\u00e1n\u00ed zp\u016fsoben\u00e9mu vibracemi pat\u0159\u00ed mezi typick\u00e9 p\u0159\u00edpady \u00fanavy materi\u00e1lu.<\/li>\n<li>Trhliny se obvykle za\u010d\u00ednaj\u00ed tvo\u0159it u prvn\u00edho z\u00e1vitu uvnit\u0159 matice, kde doch\u00e1z\u00ed k nejvy\u0161\u0161\u00ed koncentraci nap\u011bt\u00ed.<\/li>\n<li>Porucha nastane n\u00e1hle a bez viditeln\u00fdch varovn\u00fdch p\u0159\u00edznak\u016f.<\/li>\n<li>Porucha up\u00ednac\u00edho nebo spojovac\u00edho \u0161roubu m\u016f\u017ee v\u00e9st k odd\u011blen\u00ed nebo z\u0159\u00edcen\u00ed za\u0159\u00edzen\u00ed, co\u017e z \u00fanavy spojovac\u00edch prvk\u016f \u010din\u00ed skute\u010dn\u00fd bezpe\u010dnostn\u00ed probl\u00e9m.<\/li>\n<\/ul>\n<h3>Konstruk\u010dn\u00ed \u00fanava<\/h3>\n<ul>\n<li>Frames, <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/bearing-pedestal\/\">podstavce<\/a> a svary jsou vystaveny cyklick\u00e9mu nam\u00e1h\u00e1n\u00ed zp\u016fsoben\u00e9mu vibracemi stroje.<\/li>\n<li>Vibrace vyvol\u00e1vaj\u00ed st\u0159\u00eddav\u00e9 nam\u00e1h\u00e1n\u00ed, kter\u00e9 poh\u00e1n\u00ed cel\u00fd proces.<\/li>\n<li>Trhliny se nej\u010dast\u011bji vyskytuj\u00ed v m\u00edstech svar\u016f, v roz\u00edch a v m\u00edstech geometrick\u00fdch nesrovnalost\u00ed.<\/li>\n<li>V\u00fdsledkem je postupn\u00e9 selh\u00e1n\u00ed samotn\u00e9 konstrukce, na kter\u00e9 je stroj upevn\u011bn \u2013 co\u017e situaci je\u0161t\u011b zhor\u0161uje <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/looseness\/\">mechanick\u00e1 v\u016fle<\/a> a d\u00e1le zvy\u0161uje vibrace, co\u017e vede ke \u0161kodliv\u00e9 zp\u011btn\u00e9 vazb\u011b.<\/li>\n<\/ul>\n<h2>4. Faktory ovliv\u0148uj\u00edc\u00ed \u00fanavovou \u017eivotnost<\/h2>\n<h3>Amplituda nap\u011bt\u00ed<\/h3>\n<ul>\n<li>\u017divotnost p\u0159i \u00fanav\u011b prudce kles\u00e1 \u2013 neline\u00e1rn\u011b \u2013 s rostouc\u00ed amplitudou nam\u00e1h\u00e1n\u00ed.<\/li>\n<li>U\u017eite\u010dn\u00fdm p\u0159ibli\u017en\u00fdm vztahem je \u017divotnost \u221d 1\/Nap\u011bt\u00ed\u207f, kde n se obvykle pohybuje mezi 6 a 10.<\/li>\n<li>Praktick\u00fd dopad je z\u00e1sadn\u00ed: ji\u017e mal\u00e9 sn\u00ed\u017een\u00ed st\u0159\u00eddav\u00e9ho nam\u00e1h\u00e1n\u00ed m\u016f\u017ee \u017eivotnost n\u011bkolikr\u00e1t prodlou\u017eit.<\/li>\n<li>Proto\u017ee nap\u011bt\u00ed vyvolan\u00e9 vibracemi je st\u0159\u00eddav\u00e1 slo\u017eka, <strong>Omezen\u00ed vibrac\u00ed p\u0159\u00edmo prodlu\u017euje \u017eivotnost materi\u00e1lu<\/strong>.<\/li>\n<\/ul>\n<h3>St\u0159edn\u00ed nap\u011bt\u00ed<\/h3>\n<ul>\n<li>P\u016fsoben\u00ed st\u00e1l\u00e9ho (pr\u016fm\u011brn\u00e9ho) nap\u011bt\u00ed na st\u0159\u00eddav\u00e9 nap\u011bt\u00ed sni\u017euje p\u0159\u00edpustnou st\u0159\u00eddavou amplitudu.<\/li>\n<li>Vy\u0161\u0161\u00ed pr\u016fm\u011brn\u00e9 nap\u011bt\u00ed sni\u017euje \u00fanavovou pevnost (jak je patrn\u00e9 z Goodmanov\u00fdch, Gerberov\u00fdch nebo Soderbergov\u00fdch diagram\u016f).<\/li>\n<li>P\u0159edpjat\u00e9 nebo p\u0159edem zat\u00ed\u017een\u00e9 sou\u010d\u00e1sti jsou proto n\u00e1chyln\u011bj\u0161\u00ed.<\/li>\n<\/ul>\n<h3>Koncentrace nap\u011bt\u00ed<\/h3>\n<ul>\n<li>D\u00edry, rohy, dr\u00e1\u017eky a z\u00e1vity v ur\u010dit\u00fdch m\u00edstech zn\u00e1sobuj\u00ed jmenovit\u00e9 nap\u011bt\u00ed.<\/li>\n<li>Faktor koncentrace nap\u011bt\u00ed (K<sub>t<\/sub>) tento n\u00e1sobek vyjad\u0159uje \u010d\u00edseln\u011b.<\/li>\n<li>Trhliny se t\u00e9m\u011b\u0159 v\u017edy objevuj\u00ed pr\u00e1v\u011b v t\u011bchto m\u00edstech.<\/li>\n<li>Prvn\u00edm opat\u0159en\u00edm jsou velkorys\u00e9 polom\u011bry a vyh\u00fdb\u00e1n\u00ed se ostr\u00fdm roh\u016fm.<\/li>\n<\/ul>\n<h3>Stav povrchu<\/h3>\n<ul>\n<li>Povrchov\u00e1 \u00faprava hraje d\u016fle\u017eitou roli \u2013 hladk\u00e9 povrchy odol\u00e1vaj\u00ed \u00fanav\u011b materi\u00e1lu mnohem l\u00e9pe ne\u017e drsn\u00e9.<\/li>\n<li>Vruby, \u0161kr\u00e1bance a <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/corrosion\/\">koroze<\/a> D\u016flky jsou m\u00edsta, kde se snadno tvo\u0159\u00ed praskliny.<\/li>\n<li>Zpracov\u00e1n\u00ed, jako je kuli\u010dkov\u00e1n\u00ed a nitridace, vyvol\u00e1vaj\u00ed povrchov\u00e9 tlakov\u00e9 zbytkov\u00e9 nap\u011bt\u00ed a v\u00fdrazn\u011b zvy\u0161uj\u00ed odolnost proti \u00fanav\u011b.<\/li>\n<\/ul>\n<h3>Prost\u0159ed\u00ed<\/h3>\n<ul>\n<li><strong>Korozn\u00ed \u00fanava:<\/strong> Korozivn\u00ed prost\u0159ed\u00ed urychluje \u0161\u00ed\u0159en\u00ed trhlin a m\u016f\u017ee zcela eliminovat mez \u00fanavy.<\/li>\n<li><strong>Teplota:<\/strong> Zv\u00fd\u0161en\u00e9 teploty obecn\u011b sni\u017euj\u00ed \u00fanavovou pevnost a zvy\u0161uj\u00ed vliv te\u010den\u00ed.<\/li>\n<li><strong>Frekvence:<\/strong> Velmi vysok\u00e9 nebo velmi n\u00edzk\u00e9 frekvence cykl\u016f mohou ovlivnit chov\u00e1n\u00ed materi\u00e1lu p\u0159i \u00fanav\u011b, zejm\u00e9na pokud doch\u00e1z\u00ed ke korozi nebo te\u010den\u00ed.<\/li>\n<\/ul>\n<h2>5. Strategie prevence v pr\u016fb\u011bhu cel\u00e9ho \u017eivotn\u00edho cyklu<\/h2>\n<h3>F\u00e1ze n\u00e1vrhu<\/h3>\n<ul>\n<li>Odstra\u0148te nebo minimalizujte koncentrace nap\u011bt\u00ed pomoc\u00ed velk\u00fdch zaoblen\u00ed.<\/li>\n<li>Navrhujte s dostate\u010dn\u00fdmi koeficienty \u00fanavov\u00e9 bezpe\u010dnosti (obvykle 2\u20134).<\/li>\n<li>Vyberte materi\u00e1ly s dobr\u00fdmi \u00fanavov\u00fdmi vlastnostmi.<\/li>\n<li>Pomoc\u00ed anal\u00fdzy kone\u010dn\u00fdch prvk\u016f ur\u010dete oblasti s vysok\u00fdm nam\u00e1h\u00e1n\u00edm a pokud mo\u017eno v nich nevytv\u00e1\u0159ejte otvory ani z\u00e1\u0159ezy.<\/li>\n<\/ul>\n<h3>V\u00fdroba<\/h3>\n<ul>\n<li>Zlep\u0161ete povrchovou \u00fapravu kritick\u00fdch, siln\u011b nam\u00e1han\u00fdch d\u00edl\u016f.<\/li>\n<li>Prov\u00e1d\u011bjte povrchov\u00e9 \u00fapravy, jako je kuli\u010dkov\u00e1n\u00ed a cementov\u00e1n\u00ed.<\/li>\n<li>Pro dosa\u017een\u00ed optim\u00e1ln\u00ed \u00fanavov\u00e9 pevnosti pou\u017eijte vhodn\u00e9 tepeln\u00e9 zpracov\u00e1n\u00ed.<\/li>\n<li>Vyhn\u011bte se stop\u00e1m po obr\u00e1b\u011bn\u00ed kolm\u00fdm na hlavn\u00ed sm\u011br nap\u011bt\u00ed.<\/li>\n<\/ul>\n<h3>Operace<\/h3>\n<ul>\n<li><strong>Sn\u00ed\u017een\u00ed vibrac\u00ed:<\/strong> Dobr\u00fd <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/vyvazovani\/\">vyv\u00e1\u017een\u00ed<\/a> and precision <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/laser-shaft-alignment\/\">souosost h\u0159\u00eddele<\/a> Odstranit st\u0159\u00eddav\u00e9 nam\u00e1h\u00e1n\u00ed ji\u017e u zdroje.<\/li>\n<li><strong>Zabra\u0148te p\u0159et\u00ed\u017een\u00ed:<\/strong> Dodr\u017eujte konstruk\u010dn\u00ed limity.<\/li>\n<li><strong>Zabra\u0148te rezonanci:<\/strong> Vyh\u00fdbejte se kritick\u00fdm rychlostem, p\u0159i nich\u017e <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/resonance\/\">rezonance<\/a> m\u016f\u017ee dynamick\u00e9 nam\u00e1h\u00e1n\u00ed mnohon\u00e1sobn\u011b zv\u00fd\u0161it.<\/li>\n<li><strong>Kontrola koroze:<\/strong> Ochrann\u00e9 n\u00e1t\u011bry a inhibitory.<\/li>\n<\/ul>\n<h3>\u00dadr\u017eba a monitorov\u00e1n\u00ed<\/h3>\n<ul>\n<li>Pravideln\u011b kontrolujte, zda se neobjevily praskliny, a to vizu\u00e1ln\u011b a <a href=\"https:\/\/vibromera.eu\/cs\/glossary\/non-destructive-testing\/\">nedestruktivn\u00ed zkou\u0161en\u00ed<\/a> methods.<\/li>\n<li>Sledujte vibrace, abyste v\u010das zachytili po\u010d\u00ednaj\u00edc\u00ed vznik trhliny.<\/li>\n<li>Komponenty vy\u0159azujte z provozu na konci jejich vypo\u010d\u00edtan\u00e9 \u00fanavov\u00e9 \u017eivotnosti, m\u00edsto abyste \u010dekali, a\u017e dojde k poru\u0161e.<\/li>\n<li>Po\u0161kozen\u00ed povrchu ihned opravte, proto\u017ee \u010derstv\u00fd \u0161kr\u00e1banec m\u016f\u017ee b\u00fdt p\u0159\u00ed\u010dinou budouc\u00ed trhliny.<\/li>\n<\/ul>\n<p>Proto\u017ee vibrace <em>je<\/em> Proto\u017ee vibrace jsou t\u00edm st\u0159\u00eddav\u00fdm nam\u00e1h\u00e1n\u00edm, j\u00edm\u017e se \u00fanava \u017eiv\u00ed, pat\u0159\u00ed udr\u017een\u00ed n\u00edzk\u00e9 hladiny vibrac\u00ed k nejhospod\u00e1rn\u011bj\u0161\u00edm dostupn\u00fdm opat\u0159en\u00edm prevence \u00fanavov\u00e9ho po\u0161kozen\u00ed. V ter\u00e9nu lze k tomuto \u00fa\u010delu vyu\u017e\u00edt p\u0159enosn\u00fd dvoukan\u00e1lov\u00fd p\u0159\u00edstroj, jako je nap\u0159\u00edklad <a href=\"https:\/\/vibromera.eu\/cs\/produkt\/balanset-1\/\">Balanset-1A<\/a> umo\u017e\u0148uje technikovi vyv\u00e1\u017eit rotor v jeho vlastn\u00edch lo\u017eisc\u00edch a ov\u011b\u0159it, zda se zbytkov\u00e1 amplituda 1\u00d7 sn\u00ed\u017eila, \u010d\u00edm\u017e se p\u0159\u00edmo sni\u017euje cyklick\u00e9 ohybov\u00e9 nam\u00e1h\u00e1n\u00ed, kter\u00e9mu je h\u0159\u00eddel vystavena p\u0159i ka\u017ed\u00e9m ot\u00e1\u010den\u00ed, a prodlu\u017euje se tak jeho \u00fanavov\u00e1 \u017eivotnost. Abychom tento kompromis vyj\u00e1d\u0159ili \u010d\u00edseln\u011b, <a href=\"https:\/\/vibromera.eu\/cs\/calculators\/fatigue-life-calculator\/\">S-N \/ Basquin\u016fv kalkul\u00e1tor \u00fanavov\u00e9 \u017eivotnosti<\/a> ukazuje, jak strm\u011b stoup\u00e1 \u017eivotnost, kdy\u017e sni\u017eujete amplitudu stresu, a <a href=\"https:\/\/vibromera.eu\/cs\/calculators\/centrifugal-force-unbalance\/\">kalkul\u00e1tor odst\u0159ediv\u00e9 s\u00edly zp\u016fsoben\u00e9 nevyv\u00e1\u017eenost\u00ed<\/a> vyjad\u0159uje cyklick\u00e9 s\u00edly, kter\u00e9 dan\u00e1 m\u00edra nevyv\u00e1\u017eenosti p\u016fsob\u00ed na lo\u017eiska a h\u0159\u00eddel.<\/p>\n<p>Stru\u010dn\u011b \u0159e\u010deno, mechanick\u00e1 \u00fanava je z\u00e1kladn\u00ed zp\u016fsob poruchy, p\u0159i kter\u00e9m se nahromad\u011bn\u00e9 cyklick\u00e9 po\u0161kozen\u00ed prom\u011bn\u00ed v n\u00e1hl\u00e9, \u010dasto katastrof\u00e1ln\u00ed zlomen\u00ed. Prevence tohoto jevu a zaji\u0161t\u011bn\u00ed dlouh\u00e9 a spolehliv\u00e9 \u017eivotnosti stroj\u016f spo\u010d\u00edv\u00e1 v eliminaci koncentrac\u00ed nap\u011bt\u00ed p\u0159i konstrukci, v\u00fdb\u011bru vhodn\u00fdch materi\u00e1l\u016f a povrchov\u00fdch \u00faprav a \u2013 co\u017e je kl\u00ed\u010dov\u00e9 \u2013 v udr\u017een\u00ed n\u00edzk\u00e9 \u00farovn\u011b vibrac\u00ed d\u00edky spr\u00e1vn\u00e9mu vyv\u00e1\u017een\u00ed a se\u0159\u00edzen\u00ed.<\/p>\n<hr>\n<p><a href=\"https:\/\/vibromera.eu\/cs\/glossary\/\">\u2190 Zp\u011bt na hlavn\u00ed index<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Seznamte se s mechanickou \u00fanavou, postupn\u00fdm po\u0161kozen\u00edm v d\u016fsledku opakovan\u00fdch cykl\u016f nap\u011bt\u00ed, kter\u00e9 zp\u016fsobuje praskliny a poruchy v h\u0159\u00eddel\u00edch, ozuben\u00fdch kolech a konstrukc\u00edch, a to i p\u0159i nap\u011bt\u00edch pod mez\u00ed kluzu.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,110],"tags":[],"class_list":["post-116","glossary","type-glossary","status-publish","hentry","category-glossary","category-vibration-diagnostics"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/cs\/wp-json\/wp\/v2\/glossary\/116","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/cs\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/cs\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":1,"href":"https:\/\/vibromera.eu\/cs\/wp-json\/wp\/v2\/glossary\/116\/revisions"}],"predecessor-version":[{"id":101382,"href":"https:\/\/vibromera.eu\/cs\/wp-json\/wp\/v2\/glossary\/116\/revisions\/101382"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/cs\/wp-json\/wp\/v2\/media?parent=116"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/cs\/wp-json\/wp\/v2\/categories?post=116"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/cs\/wp-json\/wp\/v2\/tags?post=116"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}