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Implementation of a non-Hertzian contact model for railway dynamic application

2020-01Journal article Restricted access
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dc.contributor.authorMagalhães, Hugo
dc.contributor.authorMarques, Filipe
dc.contributor.authorLiu, Binbin
dc.contributor.authorAntunes, Pedro
dc.contributor.authorPombo, João
dc.contributor.authorFlores, Paulo
dc.contributor.authorAmbrosio, Jorge
dc.contributor.authorPiotrowski, Jerzy
dc.contributor.authorBruni, Stefano
dc.date.accessioned2019-07-24T08:37:27Z
dc.date.available2019-07-24T08:37:27Z
dc.date.issued2020-01
dc.description.abstractThe development of wheel–rail contact models is an active topic of railway research with the dual objective of improving the accuracy of multibody simulations and reducing its computational effort. This paper extends the online Hertzian contact model, proposed by Pombo et al. (Veh. Syst. Dyn. 45: 165–189, 2007) to propose a non-Hertzian contact model. The new methodology presented here includes the following steps: (i) search of the points of contact; (ii) identification of the undeformed distance function; (iii) evaluation of the contact patch; (iv) calculation of the normal and tangential contact forces; (v) application of the contact forces in the multibody vehicle model. Among several contact models available in the literature, this non-Hertzian contact approach uses the Kik–Piotrowski model for the normal contact force, while the tangential forces are obtained from the interpolation of the available Kalker Book of Tables for non-Hertzian (KBTNH) contact. With the purpose to demonstrate the proper implementation and selection of parameters that define this new model, several contact analysis and dynamic simulations are performed in which the wheel S1002 and the rail UIC50 are considered. First, the contact analyses that determine the contact condition of different wheel–rail interactions serve to assess the accuracy of the Hertzian and non-Hertzian models with respect to the software of reference CONTACT. Second, the Hertzian and non-Hertzian models are utilised to perform dynamic simulations of a wheelset, a bogie and a vehicle running in tangent and curved tracks. In short, this work provides, not only a complete description of the implementation of a non-Hertzian contact model in a multibody code, but also suggests for the proper selection of the parameters that promote better accuracy and optimal computational efficiency.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationMAGALHÃES, Hugo; [et al] – Implementation of a non-Hertzian contact model for railway dynamic application. Multibody System Dynamics. ISSN 1384-5640. Vol. 48, N.º 1 (2020), pp. 41-78pt_PT
dc.identifier.doihttps://doi.org/10.1007/s11044-019-09688-ypt_PT
dc.identifier.issn1384-5640
dc.identifier.issn1573-272X
dc.identifier.urihttp://hdl.handle.net/10400.21/10367
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSpringerpt_PT
dc.relationPD/BD/114154/2016 - FCTpt_PT
dc.relationDevelopment of Advanced Multidisciplinary Methods for Railway Dynamics Applications
dc.relation.publisherversionhttps://link.springer.com/content/pdf/10.1007%2Fs11044-019-09688-y.pdfpt_PT
dc.subjectWheel–rail contactpt_PT
dc.subjectNon-Hertzian contactpt_PT
dc.subjectContact analysispt_PT
dc.subjectMultibody simulationpt_PT
dc.subjectRailway dynamicspt_PT
dc.titleImplementation of a non-Hertzian contact model for railway dynamic applicationpt_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.endPage78pt_PT
oaire.citation.issue1
oaire.citation.startPage41pt_PT
oaire.citation.titleMultibody System Dynamicspt_PT
oaire.citation.volume48
person.familyNameMagalhães
person.familyNameMarques
person.familyNameAntunes
person.familyNamePombo
person.familyNameFlores
person.familyNameAmbrosio
person.familyNameBruni
person.givenNameHugo
person.givenNameFilipe
person.givenNamePedro
person.givenNameJoão
person.givenNamePaulo
person.givenNameJorge
person.givenNameStefano
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person.identifier.ridG-2796-2018
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person.identifier.ridAAE-3662-2019
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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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