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Vibration reduction in ballasted track using ballast mat: Nnmerical and experimental evaluation by wheelset drop test

2022-02-10Journal article Open access
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dc.contributor.authorHou, Bowen
dc.contributor.authorWang, Di
dc.contributor.authorWang, Bingbing
dc.contributor.authorChen, Xingyu
dc.contributor.authorPombo, João
dc.date.accessioned2022-02-16T10:56:17Z
dc.date.available2022-02-16T10:56:17Z
dc.date.issued2022-02-10
dc.description.abstractBallast mats are considered as an effective solution for reducing vehicle-induced vibrations. However, the research on the vibration characteristics of each part of the ballasted track with a ballast mat is limited. In this study, the ballast mat vibration reduction effects are evaluated by numerical and experimental analysis using wheelset drop tests. A three-dimensional model consisting of a wheel, track and the contact between them is built using a rigid–flexible coupling method. The accuracy of the numerical model is verified by comparison with the finite element model in terms of the track receptance and phase angle. Comparisons show that the proposed model is in good agreement with the finite element model, which allows validating the flexible-body model. Moreover, the track dynamic performance in the presence and absence of the ballast mat is studied with the wheelset drop tests in both time and frequency domains. The results from the wheelset drop excitation tests show that the use of the ballast mat decreases the mid- and high-frequency track vibration by 13–17 dB but increases the low-frequency track vibration by 5–15 dB.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationHOU, Bowen; [et al] – Vibration reduction in ballasted track using ballast mat: Nnmerical and experimental evaluation by wheelset drop test. Applied Sciences. eISSN 2076-3417. Vol. 12, N.º 4 (2022), pp. 1-17.pt_PT
dc.identifier.doi10.3390/app12041844pt_PT
dc.identifier.eissn2076-3417
dc.identifier.urihttp://hdl.handle.net/10400.21/14299
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relation2021YJ051 - National key laboratory of the China Academy of Railway Sciences Co., Ltd.pt_PT
dc.relationN2020G010 - China Railway Corporation Science and Technology Research and Development Programpt_PT
dc.relation51708021 - National Natural Science Foundation of Chinapt_PT
dc.relation.publisherversionhttps://www.mdpi.com/2076-3417/12/4/1844/htmpt_PT
dc.subjectVehicle–track interactionpt_PT
dc.subjectBallast matpt_PT
dc.subjectWheelset drop testspt_PT
dc.subjectBallasted trackpt_PT
dc.subjectVibration reductionpt_PT
dc.titleVibration reduction in ballasted track using ballast mat: Nnmerical and experimental evaluation by wheelset drop testpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage17pt_PT
oaire.citation.issue4pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleApplied Sciencespt_PT
oaire.citation.volume12pt_PT
person.familyNamePombo
person.givenNameJoão
person.identifier.ciencia-id3E1A-F8C1-9B8D
person.identifier.orcid0000-0002-5877-1989
person.identifier.ridB-9140-2013
person.identifier.scopus-author-id16022941000
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication4b7bfa25-4662-4995-8146-4b45c39ffc53
relation.isAuthorOfPublication.latestForDiscovery4b7bfa25-4662-4995-8146-4b45c39ffc53

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