{"id":17452,"date":"2026-10-21T02:02:19","date_gmt":"2026-10-21T02:02:19","guid":{"rendered":"https:\/\/www.dgcrane.com\/?post_type=posts&#038;p=17452"},"modified":"2026-10-21T02:02:23","modified_gmt":"2026-10-21T02:02:23","slug":"overhead-crane-wire-rope-failure-analysis","status":"publish","type":"posts","link":"https:\/\/www.dgcrane.com\/cs\/posts\/overhead-crane-wire-rope-failure-analysis\/","title":{"rendered":"Anal\u00fdza selh\u00e1n\u00ed ocelov\u00fdch lan mostov\u00e9ho je\u0159\u00e1bu a faktory ovliv\u0148uj\u00edc\u00ed \u017eivotnost"},"content":{"rendered":"<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><p>Obsah<\/p><nav><ul><li><a href=\"#1-overhead-crane-wire-rope-strength-and-elongation\">1. Pevnost a prodlou\u017een\u00ed ocelov\u00e9ho lana mostov\u00e9ho je\u0159\u00e1bu<\/a><\/li><li><a href=\"#2-overhead-crane-sheaves\">2. Kladky mostov\u00fdch je\u0159\u00e1b\u016f<\/a><\/li><li><a href=\"#3-overhead-crane-sheave-rope-grooves\">3. Dr\u00e1\u017eky pro lana kladek mostov\u00e9ho je\u0159\u00e1bu<\/a><\/li><li><a href=\"#4-overhead-crane-wire-rope-pressure\">4. Tlak ocelov\u00e9ho lana mostov\u00e9ho je\u0159\u00e1bu<\/a><\/li><li><a href=\"#5-overhead-crane-drums\">5. Bubny mostov\u00fdch je\u0159\u00e1b\u016f<\/a><\/li><li><a href=\"#6-other-failure-factors\">6. Dal\u0161\u00ed faktory selh\u00e1n\u00ed<\/a><\/li><\/ul><\/nav><\/div>\n\n\n\n<p>Ocelov\u00e9 lano je jedn\u00edm z nejpou\u017e\u00edvan\u011bj\u0161\u00edch zdvihac\u00edch prvk\u016f. Nab\u00edz\u00ed vysokou nosnost, dobrou flexibilitu, plynul\u00fd pohyb a n\u00edzkou hlu\u010dnost. T\u00e9m\u011b\u0159 v\u0161echny mostov\u00e9 je\u0159\u00e1by pou\u017e\u00edvaj\u00ed k p\u0159eprav\u011b b\u0159emen ocelov\u00e1 lana. Pokud se ocelov\u00e9 lano n\u00e1hle p\u0159etrhne v d\u016fsledku poruchy, mohou b\u00fdt n\u00e1sledky v\u00e1\u017en\u00e9. Anal\u00fdza poruch ocelov\u00e9ho lana je proto d\u016fle\u017eit\u00e1 jak z bezpe\u010dnostn\u00edch, tak z ekonomick\u00fdch d\u016fvod\u016f. Tento \u010dl\u00e1nek analyzuje r\u016fzn\u00e9 faktory, kter\u00e9 zp\u016fsobuj\u00ed poruchu ocelov\u00e9ho lana mostov\u00e9ho je\u0159\u00e1bu, aby se prodlou\u017eila jeho \u017eivotnost.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"667\" src=\"https:\/\/www.dgcrane.com\/wp-content\/uploads\/2026\/10\/Overhead-Crane-Wire-Rope-Failure-Analysis-feature-image.png\" alt=\"\" class=\"wp-image-17460\"><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"1-overhead-crane-wire-rope-strength-and-elongation\">1. Pevnost a prodlou\u017een\u00ed ocelov\u00e9ho lana mostov\u00e9ho je\u0159\u00e1bu<\/h2>\n\n\n\n<p>Maxim\u00e1ln\u00ed mez pevnosti ocelov\u00e9ho lana je konstruk\u010dn\u011b ni\u017e\u0161\u00ed ne\u017e pevnost svazku v\u0161ech jeho dr\u00e1t\u016f. Souvis\u00ed s konstrukc\u00ed lana a v\u00fdkonnostn\u00edm stupn\u011bm v\u0161ech dr\u00e1t\u016f v lan\u011b. P\u0159i n\u00e1vrhu ocelov\u00e9ho lana je t\u0159eba zohlednit v\u0161echny faktory zat\u00ed\u017een\u00ed, v\u010detn\u011b dodate\u010dn\u00e9ho zat\u00ed\u017een\u00ed, zrychlen\u00ed, zpomalen\u00ed, rychlosti lana a dal\u0161\u00edch faktor\u016f. Je tak\u00e9 t\u0159eba zohlednit po\u010det, konstruk\u010dn\u00ed uspo\u0159\u00e1d\u00e1n\u00ed a zp\u016fsob instalace kladek a bubnu, spolu s podm\u00ednkami, kter\u00e9 zp\u016fsobuj\u00ed korozi a opot\u0159eben\u00ed, a d\u00e9lkou lana.<\/p>\n\n\n\n<p>Dr\u00e1ty v ocelov\u00e9m lanu jsou obvykle vyrobeny z vysoce kvalitn\u00ed uhl\u00edkov\u00e9 konstruk\u010dn\u00ed oceli s obsahem uhl\u00edku 0,5%\u20130,8%. Modul pru\u017enosti ocelov\u00e9ho lana je p\u0159ibli\u017en\u011b 1,6\u00d710\u2075 N\/mm\u00b2. Tento modul m\u011b\u0159\u00ed m\u00edru, do jak\u00e9 se dr\u00e1ty mohou prodlou\u017eit pod zat\u00ed\u017een\u00edm.<\/p>\n\n\n\n<p>Kdy\u017e je ocelov\u00e9 lano zat\u00ed\u017eeno, jeho dr\u00e1ty se v\u016f\u010di sob\u011b navz\u00e1jem pohybuj\u00ed a upravuj\u00ed svou polohu, aby dos\u00e1hly stabiln\u00edho stavu odpov\u00eddaj\u00edc\u00edho aplikovan\u00e9mu zat\u00ed\u017een\u00ed. To vede ke dv\u011bma typ\u016fm prodlou\u017een\u00ed. Kdy\u017e ocelov\u00e9 lano nese zat\u00ed\u017een\u00ed poprv\u00e9, dr\u00e1ty se m\u00edrn\u011b p\u0159eskup\u00ed a dojde k trval\u00e9mu prodlou\u017een\u00ed, zn\u00e1m\u00e9mu jako konstruk\u010dn\u00ed prodlou\u017een\u00ed. Sou\u010dasn\u011b doch\u00e1z\u00ed tak\u00e9 k vratn\u00e9mu prodlou\u017een\u00ed, zn\u00e1m\u00e9mu jako elastick\u00e9 prodlou\u017een\u00ed. Konstruk\u010dn\u00ed prodlou\u017een\u00ed do ur\u010dit\u00e9 m\u00edry z\u00e1vis\u00ed na velikosti aplikovan\u00e9ho zat\u00ed\u017een\u00ed.<\/p>\n\n\n\n<p>\u010c\u00edm men\u0161\u00ed je pr\u016fm\u011br dr\u00e1t\u016f v lan\u011b, t\u00edm men\u0161\u00ed je ohybov\u00fd moment pot\u0159ebn\u00fd k jejich ohnut\u00ed a t\u00edm v\u011bt\u0161\u00ed je pru\u017enost lana. Ocelov\u00e1 lana obsahuj\u00edc\u00ed v\u00edce dr\u00e1t\u016f a ocelov\u00e1 lana s vl\u00e1knit\u00fdm j\u00e1drem maj\u00ed obecn\u011b lep\u0161\u00ed pru\u017enost. Pln\u011b kovov\u00e1 ocelov\u00e1 lana vyroben\u00e1 s men\u0161\u00edm po\u010dtem dr\u00e1t\u016f maj\u00ed hor\u0161\u00ed pru\u017enost, zat\u00edmco prvn\u00ed jmenovan\u00e1 maj\u00ed obecn\u011b v\u011bt\u0161\u00ed prodlou\u017een\u00ed ne\u017e druh\u00e1. V\u011bt\u0161\u00ed pru\u017enost poskytuje lep\u0161\u00ed odolnost proti zlomen\u00ed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"2-overhead-crane-sheaves\">2. Kladky mostov\u00fdch je\u0159\u00e1b\u016f<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1242\" height=\"828\" src=\"https:\/\/www.dgcrane.com\/wp-content\/uploads\/2026\/03\/Forged-sheaves-01.jpg\" alt=\"\" class=\"wp-image-16621\"><\/figure>\n\n\n\n<p>Hlavn\u00ed rozm\u011br kladky se obecn\u011b vyjad\u0159uje pomoc\u00ed pr\u016fm\u011bru kladky ve spodn\u00ed \u010d\u00e1sti dr\u00e1\u017eky lana a pr\u016fm\u011bru ocelov\u00e9ho lana jako minim\u00e1ln\u00edho pr\u016fm\u011bru vinut\u00ed. <a href=\"https:\/\/www.dgcrane.com\/cs\/crane-sheaves\/\">je\u0159\u00e1bov\u00e1 kladka<\/a> Jak se nap\u011bt\u00ed zmen\u0161uje, nap\u011bt\u00ed zp\u016fsoben\u00e9 ohybem a kontaktn\u00edm tlakem mezi ocelov\u00fdm lanem a kladkou se zvy\u0161uje. \u010c\u00edm vy\u0161\u0161\u00ed je ohybov\u00e9 nap\u011bt\u00ed, t\u00edm rychleji se dr\u00e1ty v lanu unavuj\u00ed. Zv\u00fd\u0161en\u00e9 kontaktn\u00ed nap\u011bt\u00ed tak\u00e9 urychluje po\u0161kozen\u00ed lana a opot\u0159eben\u00ed kladky.<\/p>\n\n\n\n<p>S rostouc\u00ed kladkou se sni\u017euje tlak mezi lanem a kladkou, stejn\u011b jako stupe\u0148 ohybu. Pokud se bere v \u00favahu pouze ohybov\u00e9 nap\u011bt\u00ed, lze pr\u016fm\u011br kladky pro kontaktn\u00ed ocelov\u00e9 lano 6\u00d719 zv\u011bt\u0161it a\u017e na 90n\u00e1sobek pr\u016fm\u011bru lana, aby se prodlou\u017eila jeho \u017eivotnost. S v\u00fdjimkou speci\u00e1ln\u00edho vybaven\u00ed se v\u0161ak kladky tak velk\u00e9ho pr\u016fm\u011bru v praxi pou\u017e\u00edvaj\u00ed jen z\u0159\u00eddka ze dvou d\u016fvod\u016f:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Tak velk\u00e1 kladka je pro v\u011bt\u0161inu zdvihac\u00edch za\u0159\u00edzen\u00ed nepraktick\u00e1.<\/li>\n\n\n\n<li>Oh\u00fdb\u00e1n\u00ed je z\u0159\u00eddka jedin\u00fdm faktorem p\u0159\u00edtomn\u00fdm v jak\u00e9mkoli provozn\u00edm stavu.<\/li>\n<\/ol>\n\n\n\n<p>V praxi ovliv\u0148uje \u017eivotnost lana krom\u011b ohybu mnoho dal\u0161\u00edch faktor\u016f, v\u010detn\u011b opakovan\u00e9ho nam\u00e1h\u00e1n\u00ed, opot\u0159eben\u00ed, otlu\u010dov\u00e1n\u00ed, n\u00e1raz\u016f, vibrac\u00ed, torze, rychlosti ot\u00e1\u010den\u00ed, nespr\u00e1vn\u00e9ho nav\u00edjen\u00ed bubnu, koroze a nedostate\u010dn\u00e9 \u00fadr\u017eby. Jeden nebo v\u00edce z t\u011bchto faktor\u016f m\u016f\u017ee m\u00edt na \u017eivotnost lana v\u011bt\u0161\u00ed vliv ne\u017e velikost kladky.<\/p>\n\n\n\n<p>Optim\u00e1ln\u00ed velikost kladky by m\u011bla b\u00fdt stanovena s ohledem na bezpe\u010dnost, ekonomick\u00fd provoz a dal\u0161\u00ed faktory. Vysok\u00fd tlak mezi dr\u00e1ty v kontaktn\u00edch bodech lana v kombinaci s vysok\u00fdm ohybov\u00fdm nap\u011bt\u00edm, kter\u00e9 vznik\u00e1 p\u0159i b\u011bhu lana p\u0159es malou kladku, v\u0161ak m\u016f\u017ee p\u0159isp\u011bt k po\u0161kozen\u00ed a selh\u00e1n\u00ed lana. Za t\u011bchto nep\u0159\u00edzniv\u00fdch podm\u00ednek \u010dasto doch\u00e1z\u00ed k p\u0159etr\u017een\u00ed dr\u00e1t\u016f mezi kontaktn\u00edmi body sousedn\u00edch pramen\u016f. P\u0159etr\u017een\u00ed v t\u011bchto m\u00edstech je \u010dasto obt\u00ed\u017en\u00e9 nebo dokonce nemo\u017en\u00e9 odhalit vn\u011bj\u0161\u00ed kontrolou.<\/p>\n\n\n\n<p>Proto by u za\u0159\u00edzen\u00ed s dal\u0161\u00edmi p\u0159\u00edsn\u00fdmi bezpe\u010dnostn\u00edmi po\u017eadavky m\u011bly b\u00fdt zvoleny v\u011bt\u0161\u00ed kladky, aby se proces po\u0161kozen\u00ed lana rozv\u00edjel postupn\u011bji a k po\u0161kozen\u00ed doch\u00e1zelo na povrchu lana, kde je snaz\u0161\u00ed jej odhalit a posoudit.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"3-overhead-crane-sheave-rope-grooves\">3. Dr\u00e1\u017eky pro lana kladek mostov\u00e9ho je\u0159\u00e1bu<\/h2>\n\n\n\n<p>Aby ocelov\u00e9 lano fungovalo co nejl\u00e9pe, mus\u00ed m\u00edt dr\u00e1\u017eka kladky dostate\u010dn\u011b velk\u00fd pr\u016fm\u011br, aby kolem lana byla zachov\u00e1na vhodn\u00e1 v\u016fle. Pr\u016fm\u011br dr\u00e1\u017eky lana nem\u016f\u017ee z\u016fstat konstantn\u00ed. Jeho zm\u011bna je ovlivn\u011bna p\u0159edev\u0161\u00edm ocelov\u00fdm lanem a do zna\u010dn\u00e9 m\u00edry materi\u00e1lem kladky a tlakem, kter\u00fd na ni p\u016fsob\u00ed.<\/p>\n\n\n\n<p>Proto\u017ee se dr\u00e1\u017eka neust\u00e1le opot\u0159ebov\u00e1v\u00e1, obvykle se zmen\u0161\u00ed na men\u0161\u00ed velikost, ne\u017e se ocelov\u00e9 lano bl\u00ed\u017e\u00ed ke konci sv\u00e9 \u017eivotnosti. To vytv\u00e1\u0159\u00ed probl\u00e9m: poka\u017ed\u00e9, kdy\u017e se instaluje nov\u00e9 ocelov\u00e9 lano, je nutn\u00e9 dr\u00e1\u017eku znovu opracovat nebo vym\u011bnit kladku. V praxi je v\u0161ak op\u011btovn\u00e9 opracov\u00e1n\u00ed dr\u00e1\u017eky nebo v\u00fdm\u011bna kladky neekonomick\u00e9.<\/p>\n\n\n\n<p>P\u0159i oprav\u011b dr\u00e1\u017eky se obvykle nejprve oprav\u00ed p\u0159\u00edruba a pot\u00e9 se dno dr\u00e1\u017eky o\u0159e\u017ee na vhodn\u00fd pr\u016fm\u011br. Pokud se o\u0159e\u017ee pouze dno dr\u00e1\u017eky, \u00fahel hrdla vedle dna se m\u016f\u017ee st\u00e1t p\u0159\u00edli\u0161 mal\u00fdm, aby poskytoval dostate\u010dnou v\u016fli, co\u017e v\u00e1\u017en\u011b zvy\u0161uje opot\u0159eben\u00ed ocelov\u00e9ho lana.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"4-overhead-crane-wire-rope-pressure\">4. Tlak ocelov\u00e9ho lana mostov\u00e9ho je\u0159\u00e1bu<\/h2>\n\n\n\n<p>Krom\u011b ohybov\u00e9ho nap\u011bt\u00ed, kter\u00e9 vznik\u00e1 p\u0159i pohybu lana p\u0159es kladku, je ocelov\u00e9 lano vystaveno radi\u00e1ln\u00edmu tlaku zp\u016fsoben\u00e9mu kontaktem s kladkou. Tento tlak vytv\u00e1\u0159\u00ed smykov\u00e9 nap\u011bt\u00ed v lan\u011b, m\u011bn\u00ed jeho konstrukci a ovliv\u0148uje rychlost opot\u0159eben\u00ed dr\u00e1\u017eky kladky. Proto je t\u0159eba p\u0159i v\u00fdb\u011bru nejvhodn\u011bj\u0161\u00ed konstrukce ocelov\u00e9ho lana zohlednit velikost radi\u00e1ln\u00edho tlaku a odolnost materi\u00e1lu kladky proti opot\u0159eben\u00ed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"5-overhead-crane-drums\">5. Bubny mostov\u00fdch je\u0159\u00e1b\u016f<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"2400\" height=\"1600\" src=\"https:\/\/www.dgcrane.com\/wp-content\/uploads\/Drum_1.jpg\" alt=\"Buben\" class=\"wp-image-2099\" srcset=\"https:\/\/www.dgcrane.com\/wp-content\/uploads\/Drum_1.jpg 2400w, https:\/\/www.dgcrane.com\/wp-content\/uploads\/Drum_1-1536x1024.jpg 1536w, https:\/\/www.dgcrane.com\/wp-content\/uploads\/Drum_1-2048x1365.jpg 2048w\" sizes=\"(max-width: 2400px) 100vw, 2400px\" \/><\/figure>\n\n\n\n<p>The <a href=\"https:\/\/www.dgcrane.com\/cs\/products\/rope-drums\/\">je\u0159\u00e1bov\u00fd buben<\/a> Rozm\u011bry, profil dr\u00e1\u017eky a tlak jsou podobn\u00e9 podm\u00ednk\u00e1m popsan\u00fdm v\u00fd\u0161e pro kladky.<\/p>\n\n\n\n<p>Pokud m\u00e1 buben hladk\u00fd povrch, je skute\u010dn\u00fd radi\u00e1ln\u00ed tlak relativn\u011b vysok\u00fd, proto\u017ee ocelov\u00e9 lano je podep\u0159eno pouze na jedn\u00e9 stran\u011b a jeho obvodov\u00e1 oblast nen\u00ed podep\u0159ena. U tohoto typu bubnu se lano i buben opot\u0159ebov\u00e1vaj\u00ed v\u00edce ne\u017e u dr\u00e1\u017ekovan\u00e9ho bubnu a lano se tlakem snadn\u011bji po\u0161kozuje.<\/p>\n\n\n\n<p>Pokud je ohybov\u00e9 nap\u011bt\u00ed hlavn\u00edm faktorem ovliv\u0148uj\u00edc\u00edm \u017eivotnost ocelov\u00e9ho lana, m\u016f\u017ee b\u00fdt pr\u016fm\u011br bubnu o n\u011bco men\u0161\u00ed ne\u017e pr\u016fm\u011br kladky v syst\u00e9mu. Je to proto, \u017ee b\u011bhem pohybu v jednom sm\u011bru se lano dvakr\u00e1t ohne p\u0159es ka\u017edou kladku, ale pouze jednou na bubnu. Lano se poprv\u00e9 ohne, kdy\u017e se p\u0159ibl\u00ed\u017e\u00ed ke kladce, a zm\u011bn\u00ed se z p\u0159\u00edm\u00e9 linie na zak\u0159iven\u00ed kladky. Podruh\u00e9 se ohne, kdy\u017e se znovu narovn\u00e1, kdy\u017e opou\u0161t\u00ed kladku.<\/p>\n\n\n\n<p>V n\u011bkter\u00fdch p\u0159\u00edpadech je dr\u00e1ha lana kr\u00e1tk\u00e1. Kdy\u017e se \u010d\u00e1st lana pohybuje na bubnu tam a zp\u011bt, ani\u017e by p\u0159ech\u00e1zela p\u0159es kladku, po\u010det ohybov\u00fdch cykl\u016f se sn\u00ed\u017e\u00ed a poru\u0161en\u00ed postupuje pomaleji.<\/p>\n\n\n\n<p>P\u0159i pou\u017eit\u00ed dr\u00e1\u017ekovan\u00e9ho bubnu pom\u00e1h\u00e1 vhodn\u00fd profil dr\u00e1\u017eky udr\u017eet navinut\u00e9 lano ve spr\u00e1vn\u00e9 poloze. Udr\u017eov\u00e1n\u00ed vhodn\u00e9 rozte\u010de mezi dr\u00e1\u017ekami je d\u016fle\u017eit\u00e9, aby sousedn\u00ed ovinut\u00ed lana m\u011blo dostate\u010dnou, ale ne nadm\u011brnou, v\u016fli. To pom\u00e1h\u00e1 zabr\u00e1nit tomu, aby se lano nav\u00edjen\u00e9 na buben tla\u010dilo o lano, kter\u00e9 je ji\u017e navinut\u00e9 na bubnu, nebo o n\u011bj t\u0159\u00edlo.<\/p>\n\n\n\n<p>U v\u00edcevrstv\u00e9ho nav\u00edjen\u00ed by m\u011bla b\u00fdt rozte\u010d mezi st\u0159edov\u00fdmi liniemi dr\u00e1\u017eek dostate\u010dn\u00e1, aby se zabr\u00e1nilo vz\u00e1jemn\u00e9mu dotyku ocelov\u00fdch lan pod maxim\u00e1ln\u00edm \u00fahlem nata\u017een\u00ed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"6-other-failure-factors\">6. Dal\u0161\u00ed faktory selh\u00e1n\u00ed<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Koroze:<\/strong> Koroze je \u010dastou p\u0159\u00ed\u010dinou selh\u00e1n\u00ed ocelov\u00fdch lan. Korozivn\u00ed atmosf\u00e9ra vytv\u00e1\u0159en\u00e1 provozn\u00edm prost\u0159ed\u00edm m\u016f\u017ee m\u00edt v\u00fdznamn\u00fd vliv na \u017eivotnost lana.<\/li>\n\n\n\n<li><strong>R\u00e1zov\u00e9 zat\u00ed\u017een\u00ed a vibrace:<\/strong> P\u016fsoben\u00ed r\u00e1zov\u00e9ho zat\u00ed\u017een\u00ed na ocelov\u00e9 lano a jeho vystaven\u00ed vibrac\u00edm vytv\u00e1\u0159\u00ed vysokofrekven\u010dn\u00ed, vysok\u00e1 ohybov\u00e1 nap\u011bt\u00ed. Vliv vibrac\u00ed je obzvl\u00e1\u0161t\u011b siln\u00fd na konci lana a m\u016f\u017ee zp\u016fsobit \u00fanavov\u00e9 poru\u0161en\u00ed.<\/li>\n\n\n\n<li><strong>Nadm\u011brn\u00e1 teplota:<\/strong> Pokud ocelov\u00e9 lano pracuje p\u0159i nadm\u011brn\u011b vysok\u00e9 teplot\u011b, m\u016f\u017ee selhat, proto\u017ee se sn\u00ed\u017e\u00ed jeho pevnost v tahu.<\/li>\n<\/ol>\n\n\n\n<p>V\u00fd\u0161e uveden\u00e1 anal\u00fdza poruch ukazuje, \u017ee porucha ocelov\u00e9ho lana mostov\u00e9ho je\u0159\u00e1bu je \u010dasto v\u00fdsledkem kombinovan\u00e9 akumulace v\u00edce faktor\u016f. P\u0159i skute\u010dn\u00e9m vy\u0161et\u0159ov\u00e1n\u00ed poruchy by m\u011bly b\u00fdt faktory analyzov\u00e1ny komplexn\u011b, m\u011bl by b\u00fdt rozli\u0161en jejich relativn\u00ed v\u00fdznam a m\u011bla by b\u00fdt identifikov\u00e1na prim\u00e1rn\u00ed p\u0159\u00ed\u010dina poruchy, aby se prodlou\u017eila \u017eivotnost ocelov\u00e9ho lana.<\/p>","protected":false},"excerpt":{"rendered":"Ocelov\u00e9 lano je jedn\u00edm z nejpou\u017e\u00edvan\u011bj\u0161\u00edch zdvihac\u00edch prvk\u016f. Nab\u00edz\u00ed vysokou nosnost, dobrou flexibilitu, plynul\u00fd pohyb a n\u00edzkou hlu\u010dnost. T\u00e9m\u011b\u0159 v\u0161echny mostov\u00e9 je\u0159\u00e1by pou\u017e\u00edvaj\u00ed k p\u0159eprav\u011b b\u0159emen ocelov\u00e9 lano. Pokud se ocelov\u00e9 lano n\u00e1hle p\u0159etrhne v d\u016fsledku poruchy, mohou b\u00fdt n\u00e1sledky v\u00e1\u017en\u00e9. Anal\u00fdza poruchy ocelov\u00e9ho lana je proto d\u016fle\u017eit\u00e1 [\u2026]","protected":false},"featured_media":17460,"parent":0,"menu_order":0,"template":"single-SEO-Table.php","posts_category":[351],"posts_tag":[1068],"class_list":["post-17452","posts","type-posts","status-publish","has-post-thumbnail","hentry","posts_category-blog","posts_tag-overhead-crane-wire-rope-failure-analysis"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.dgcrane.com\/cs\/wp-json\/wp\/v2\/xmxposts\/17452"}],"collection":[{"href":"https:\/\/www.dgcrane.com\/cs\/wp-json\/wp\/v2\/xmxposts"}],"about":[{"href":"https:\/\/www.dgcrane.com\/cs\/wp-json\/wp\/v2\/types\/posts"}],"version-history":[{"count":8,"href":"https:\/\/www.dgcrane.com\/cs\/wp-json\/wp\/v2\/xmxposts\/17452\/revisions"}],"predecessor-version":[{"id":17461,"href":"https:\/\/www.dgcrane.com\/cs\/wp-json\/wp\/v2\/xmxposts\/17452\/revisions\/17461"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.dgcrane.com\/cs\/wp-json\/wp\/v2\/media\/17460"}],"wp:attachment":[{"href":"https:\/\/www.dgcrane.com\/cs\/wp-json\/wp\/v2\/media?parent=17452"}],"wp:term":[{"taxonomy":"posts_category","embeddable":true,"href":"https:\/\/www.dgcrane.com\/cs\/wp-json\/wp\/v2\/posts_category?post=17452"},{"taxonomy":"posts_tag","embeddable":true,"href":"https:\/\/www.dgcrane.com\/cs\/wp-json\/wp\/v2\/posts_tag?post=17452"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}