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Implementation of a non-Hertzian Contact Model for Railway Dynamics

2018-06Conference object Open access
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dc.contributor.authorMagalhães, Hugo
dc.contributor.authorMarques, Filipe
dc.contributor.authorLiu, Binbin
dc.contributor.authorPombo, João
dc.contributor.authorFlores, Paulo
dc.contributor.authorAmbrosio, Jorge
dc.contributor.authorBruni, Stefano
dc.date.accessioned2019-02-06T10:18:46Z
dc.date.available2019-02-06T10:18:46Z
dc.date.issued2018-06
dc.description.abstractThe development of wheel-rail contact models is an active topic of research, in which more accurate and reliable methodologies are required to improve the realism of multibody simulations while reducing the computational effort. However, their implementation in a multibody software consists of a challenging task for itself. This paper presents a generalized strategy for the implementation of non-Hertzian contact models. This new methodology is split into the following steps: determination of points of contact; identification of the undeformed distance function; determination of the contact patch; and calculation of the normal and tangential forces which are computed according to the contact conditions and the theories used. Here, the normal force is determined with the Kik-Piotrowski model, while the tangential forces are obtained from the interpolation of the Kalker Book of Tables for Non-Hertzian contact patches. To demonstrate the proper implementation of the new methodology, static and dynamic simulations have been performed. First, a static wheel-rail interaction at different slip conditions is simulated being observed a good agreement with respect to the results obtained from CONTACT. Secondly, a dynamic simulation of a bogie running in a tangent track is considered, in which the contact developed respect the Hertzian conditions. Thus, a comparison between the Hertzian approach and the proposed methodology is possible, being discussed the slight differences between the results obtained from both simulations. Besides the proposed implementation is 4.5 times slower than the Hertzian method considered in this work, for the case study presented in this work, the proposed methodology allows to deal with non-Hertzian contact.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 Dynamics. In The 5th Joint International Conference on Multibody System Dynamics. Lisbon, Portugal, 2018. Pp. 1-18pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.21/9430
dc.language.isoengpt_PT
dc.relationPD/BD/114154/2016 - FCTpt_PT
dc.relationDevelopment of Advanced Multidisciplinary Methods for Railway Dynamics Applications
dc.subjectWheel-railpt_PT
dc.subjectImplementationpt_PT
dc.subjectNon-Hertzian contact modelspt_PT
dc.titleImplementation of a non-Hertzian Contact Model for Railway Dynamicspt_PT
dc.typeconference object
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.conferencePlaceJune 24 –28, 2018 - Lisbon, Portugalpt_PT
oaire.citation.endPage18pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleThe 5th Joint International Conference on Multibody System Dynamicspt_PT
person.familyNameMagalhães
person.familyNameMarques
person.familyNamePombo
person.familyNameFlores
person.familyNameAmbrosio
person.familyNameBruni
person.givenNameHugo
person.givenNameFilipe
person.givenNameJoão
person.givenNamePaulo
person.givenNameJorge
person.givenNameStefano
person.identifierG-2796-2018
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person.identifier.orcid0000-0001-7070-7958
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person.identifier.orcid0000-0002-5877-1989
person.identifier.orcid0000-0002-7013-4202
person.identifier.orcid0000-0001-6681-5657
person.identifier.orcid0000-0003-2177-5254
person.identifier.ridG-2796-2018
person.identifier.ridI-8895-2016
person.identifier.ridB-9140-2013
person.identifier.ridA-4415-2008
person.identifier.ridD-1685-2010
person.identifier.scopus-author-id56034869200
person.identifier.scopus-author-id25925995000
person.identifier.scopus-author-id16022941000
person.identifier.scopus-author-id9841599800
person.identifier.scopus-author-id7003433776
person.identifier.scopus-author-id7006113469
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT
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