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Article: Rail-bridge coupling element of unequal lengths for analysing train-track-bridge interaction systems

TitleRail-bridge coupling element of unequal lengths for analysing train-track-bridge interaction systems
Authors
KeywordsFinite element method
Rail-bridge coupling element
Railway bridge
Railway track
Train
Issue Date2012
PublisherElsevier Inc. The Journal's web site is located at http://www.elsevier.com/locate/apm
Citation
Applied Mathematical Modelling, 2012, v. 36 n. 4, p. 1395-1414 How to Cite?
AbstractThis paper presents a rail-bridge coupling element of unequal lengths, in which the length of a bridge element is longer than that of a rail element, to investigate the dynamic problem of train-track-bridge interaction systems. The equation of motion in matrix form is given for a train-track-bridge interaction system with the proposed element. The first two numerical examples with two types of bridge models are chosen to illustrate the application of the proposed element. The results show that, for the same length of rail element, (1) the dynamic responses of train, track and bridge obtained by the proposed element are almost identical to those obtained by the rail-bridge coupling element of equal length, and (2) compared with the rail-bridge coupling element of equal length, the proposed element can help to save computer time. Furthermore, the influence of the length of rail element on the dynamic responses of rail is significant. However, the influence of the length of rail element on the dynamic responses of bridge is insignificant. Therefore, the proposed element with a shorter rail element and a longer bridge element may be adopted to study the dynamic responses of a train-track-bridge interaction system. The last numerical example is to investigate the effects of two types of track models on the dynamic responses of vehicle, rail and bridge. The results show that: (1) there are differences of the dynamic responses of vehicle, rail and bridge based on the single-layer and double-layer track models, (2) the maximum differences increase with the increase of the mass of sleeper, (3) the double-layer track model is more accurate. © 2011 Elsevier Inc.
Persistent Identifierhttp://hdl.handle.net/10722/150644
ISSN
2015 Impact Factor: 2.291
2015 SCImago Journal Rankings: 1.318
ISI Accession Number ID
Funding AgencyGrant Number
National Natural Science Foundation of China51078360
50938008
Hunan Provincial Natural Science Foundation of China10JJ3059
Funding Information:

The authors thank Prof. M. Cross, Editor-in-Chief, Applied Mathematical Modelling, and the anonymous reviewer for their valuable and helpful comments. The work was supported by the National Natural Science Foundation of China (Grants 51078360 and 50938008), and Hunan Provincial Natural Science Foundation of China (Grant 10JJ3059).

References

 

DC FieldValueLanguage
dc.contributor.authorLou, Pen_US
dc.contributor.authorYu, ZWen_US
dc.contributor.authorAu, FTKen_US
dc.date.accessioned2012-06-26T06:06:23Z-
dc.date.available2012-06-26T06:06:23Z-
dc.date.issued2012en_US
dc.identifier.citationApplied Mathematical Modelling, 2012, v. 36 n. 4, p. 1395-1414en_US
dc.identifier.issn0307-904Xen_US
dc.identifier.urihttp://hdl.handle.net/10722/150644-
dc.description.abstractThis paper presents a rail-bridge coupling element of unequal lengths, in which the length of a bridge element is longer than that of a rail element, to investigate the dynamic problem of train-track-bridge interaction systems. The equation of motion in matrix form is given for a train-track-bridge interaction system with the proposed element. The first two numerical examples with two types of bridge models are chosen to illustrate the application of the proposed element. The results show that, for the same length of rail element, (1) the dynamic responses of train, track and bridge obtained by the proposed element are almost identical to those obtained by the rail-bridge coupling element of equal length, and (2) compared with the rail-bridge coupling element of equal length, the proposed element can help to save computer time. Furthermore, the influence of the length of rail element on the dynamic responses of rail is significant. However, the influence of the length of rail element on the dynamic responses of bridge is insignificant. Therefore, the proposed element with a shorter rail element and a longer bridge element may be adopted to study the dynamic responses of a train-track-bridge interaction system. The last numerical example is to investigate the effects of two types of track models on the dynamic responses of vehicle, rail and bridge. The results show that: (1) there are differences of the dynamic responses of vehicle, rail and bridge based on the single-layer and double-layer track models, (2) the maximum differences increase with the increase of the mass of sleeper, (3) the double-layer track model is more accurate. © 2011 Elsevier Inc.en_US
dc.languageengen_US
dc.publisherElsevier Inc. The Journal's web site is located at http://www.elsevier.com/locate/apmen_US
dc.relation.ispartofApplied Mathematical Modellingen_US
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Applied Mathematical Modelling. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Applied Mathematical Modelling, 2012, v. 36 n. 4, p. 1395-1414. DOI: 10.1016/j.apm.2011.08.041-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectFinite element methoden_US
dc.subjectRail-bridge coupling elementen_US
dc.subjectRailway bridgeen_US
dc.subjectRailway tracken_US
dc.subjectTrainen_US
dc.titleRail-bridge coupling element of unequal lengths for analysing train-track-bridge interaction systemsen_US
dc.typeArticleen_US
dc.identifier.emailLou, P: pinglou@hkucc.hku.hken_US
dc.identifier.emailAu, FTK: francis.au@hku.hk-
dc.identifier.authorityAu, FTK=rp00083en_US
dc.description.naturepostprinten_US
dc.identifier.doi10.1016/j.apm.2011.08.041en_US
dc.identifier.scopuseid_2-s2.0-84855651504en_US
dc.identifier.hkuros209100-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-84855651504&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume36en_US
dc.identifier.issue4en_US
dc.identifier.spage1395en_US
dc.identifier.epage1414en_US
dc.identifier.isiWOS:000300120900004-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridAu, FTK=7005204072en_US
dc.identifier.scopusauthoridYu, ZW=7404345950en_US
dc.identifier.scopusauthoridLou, P=7005873169en_US

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