Influence of the finite element type of the sleeper on vehicle-track interaction: a numerical study

In the framework of vehicle-track interaction, this work puts an emphasis on clarifying the influence of sleeper finite element types on system dynamic responses. Three sleeper element types, namely the rigid-body, extensible Euler-Bernoulli beam and solid element are used respectively in the track...

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Bibliographic Details
Published inVehicle system dynamics Vol. 59; no. 10; pp. 1533 - 1556
Main Authors Xu, Lei, Lu, Tao
Format Journal Article
LanguageEnglish
Published Abingdon Taylor & Francis 03.10.2021
Taylor & Francis Ltd
Subjects
Damping
Euler-Bernoulli beams
frequency response function
Mathematical analysis
Mathematical models
Railroad ballast
Railroad ties
Railway engineering
Railway tracks
sleeper finite element
Stiffness
Timoshenko beams
Vehicle-track interaction
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Summary:In the framework of vehicle-track interaction, this work puts an emphasis on clarifying the influence of sleeper finite element types on system dynamic responses. Three sleeper element types, namely the rigid-body, extensible Euler-Bernoulli beam and solid element are used respectively in the track system modelling with detail mathematical formulations presented. The rails are modelled as Timoshenko beams. The ballasted track system is subject to a moving vehicle with coupled wheel-rail interactions. From aspects of both frequency- and time- domain analysis in the numerical study, the effectiveness of this model has been validated. The influences of the sleeper finite element type, the sleeper support stiffness and damping coefficient on the system responses have been investigated.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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content type line 14
ISSN:0042-3114
1744-5159
DOI:10.1080/00423114.2020.1769847