Comparison of Different Load Spectra on Residual Fatigue Lifetime of Railway Axle

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dc.contributor.authorPokorný, Pavelcs
dc.contributor.authorNáhlík, Lubošcs
dc.contributor.authorHutař, Pavelcs
dc.coverage.issue1cs
dc.coverage.volume74cs
dc.date.accessioned2020-08-05T10:58:07Z
dc.date.available2020-08-05T10:58:07Z
dc.date.issued2014-06-18cs
dc.description.abstractThe railway axles are subjected to variable amplitude loading. The variability is caused by many different regimes of train operation. The dominant load is caused by the weight of the vehicle, which generates rotary bending during train movement. Nevertheless, there are additional forces, which are generated when train goes through curved track, over crossovers, switches, rail joints etc. Present non-destructive defectoscopy can reliably detect only relatively long cracks (approximately 2 mm long or longer). Hence there is a risk that the existing crack is not detected. Therefore, for conservative estimation of the residual fatigue lifetime the railway axle with a crack should be considered. The behaviour of the crack depends on load spectrum of railway axle. Hence for accurate determination of residual fatigue lifetime of the railway axle is necessary to know representative load spectrum. This paper compares several measured load spectra of railway axles, which are available in the literature. The effect of different load spectra is shown on two widely used materials for railway axles: EA1N and EA4T steels. Obtained results could be used for safer operation of railway axles.en
dc.description.abstractŽelezniční nápravy jsou v průběhu provozu vystaveny proměnnému zatěžování. Toto zatížení je dáno především typem tratě, dvojkolí či způsobem provozování. Tento článek zkoumá vliv několika dostupných zátěžných spekter železničních náprav na zbytkovou únavovou životnost železničních náprav, u kterých je předpokládaný počáteční defekt typu trhlina.cs
dc.formattextcs
dc.format.extent313-316cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationProcedia Engineering. 2014, vol. 74, issue 1, p. 313-316.en
dc.identifier.doi10.1016/j.proeng.2014.06.269cs
dc.identifier.issn1877-7058cs
dc.identifier.other108375cs
dc.identifier.urihttp://hdl.handle.net/11012/194749
dc.language.isoencs
dc.publisherElseviercs
dc.relation.ispartofProcedia Engineeringcs
dc.relation.urihttps://www.sciencedirect.com/science/article/pii/S187770581400839Xcs
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivatives 3.0 Unportedcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1877-7058/cs
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/cs
dc.subjectrailway axle; residual fatigue lifetimeen
dc.subjectfatigue cracken
dc.subjectload spectrumen
dc.subjectEA1Nen
dc.subjectEA4Ten
dc.subjectželezniční náprava
dc.subjectzbytková únavová životnost
dc.subjectúnavová trhlina
dc.subjectzátěžné spektrum
dc.subjectEA1N
dc.subjectEA4T
dc.titleComparison of Different Load Spectra on Residual Fatigue Lifetime of Railway Axleen
dc.title.alternativePorovnání různých zátěžných spekter na zbytkovou únavovou životnost železničních nápravcs
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-108375en
sync.item.dbtypeVAVen
sync.item.insts2020.08.05 12:58:07en
sync.item.modts2020.08.05 12:16:36en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Ústav mechaniky těles, mechatroniky a biomechanikycs
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