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A finite element methodology to model flexible tracks with arbitrary geometry for railway dynamics applications

2021-10-01Journal article Restricted access
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dc.contributor.authorCosta, J. N.
dc.contributor.authorAntunes, Pedro
dc.contributor.authorMagalhães, Hugo
dc.contributor.authorPombo, João
dc.contributor.authorAmbrósio, J.
dc.date.accessioned2021-06-23T10:15:30Z
dc.date.available2021-06-23T10:15:30Z
dc.date.issued2021-10-01
dc.description.abstractThe dynamic analysis of railway vehicles requires an accurate representation of the vehicle, the track geometry and structure, and their interaction. Generally, flexible track models with curved geometries represent the rails with straight beam elements, which results in a piecewise linear representation of the rails. Consequently, the wheel-rail contact mechanics are not properly captured, and the wheel-rail contact forces present spurious high-frequency oscillations. This work proposes a novel approach to model flexible railway tracks with arbitrary geometries, in which the correct geometry in the wheel-rail contact mechanics is assured by modeling the rails as Timoshenko curved beam elements. This approach improves both the geometric representation of the rails and the accuracy of the wheel-rail contact forces calculation. A realistic operation scenario in which a multibody model of a railway vehicle runs on a flexible track with a curved geometry is used here to demonstrate the novel aspects of this work and then discuss the improvements over the conventional approaches. The results show that the proposed methodology greatly improves the computation of the wheel-rail interaction forces and prevents spurious oscillations from propagating to the vehicle.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationCOSTA, J. N.; [et al] – A finite element methodology to model flexible tracks with arbitrary geometry for railway dynamics applications. Computers and Structures. ISSN 0045-7949. Vol. 254 (2020), pp. 1-15pt_PT
dc.identifier.doi10.1016/j.compstruc.2021.106519pt_PT
dc.identifier.issn0045-7949
dc.identifier.urihttp://hdl.handle.net/10400.21/13469
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationPD/BD/128138/2016 - FCT and the Luso-American Development Foundationpt_PT
dc.relation140/2019 - FCT and the Luso-American Development Foundationpt_PT
dc.relationDevelopment of Advanced Multidisciplinary Methods for Railway Dynamics Applications
dc.relation.publisherversionhttps://reader.elsevier.com/reader/sd/pii/S0045794921000419?token=3941052DC2272CAF381F86A5410D8FD36B906EB59139B72BBFFA3492CC3093EA6CFFB15260DC93EE206775451672CC7D&originRegion=eu-west-1&originCreation=20210623100607pt_PT
dc.subjectTrack modelingpt_PT
dc.subjectWheel-rail contactpt_PT
dc.subjectVehicle dynamicspt_PT
dc.subjectCo-simulationpt_PT
dc.subjectCurved beampt_PT
dc.titleA finite element methodology to model flexible tracks with arbitrary geometry for railway dynamics applicationspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleDevelopment of Advanced Multidisciplinary Methods for Railway Dynamics Applications
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F96695%2F2013/PT
oaire.citation.endPage15pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleComputers and Structurespt_PT
oaire.citation.volume254pt_PT
person.familyNameAntunes
person.familyNameMagalhães
person.familyNamePombo
person.givenNamePedro
person.givenNameHugo
person.givenNameJoão
person.identifier2438479
person.identifierG-2796-2018
person.identifier.ciencia-id4613-B25C-A225
person.identifier.ciencia-id441A-7D7A-0F89
person.identifier.ciencia-id3E1A-F8C1-9B8D
person.identifier.orcid0000-0001-6910-8456
person.identifier.orcid0000-0001-7070-7958
person.identifier.orcid0000-0002-5877-1989
person.identifier.ridAAE-3662-2019
person.identifier.ridG-2796-2018
person.identifier.ridB-9140-2013
person.identifier.scopus-author-id55108715000
person.identifier.scopus-author-id56034869200
person.identifier.scopus-author-id16022941000
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
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relation.isAuthorOfPublication.latestForDiscoveryb96b5e4a-0b76-4606-877a-b3174e153f41
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