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

Lei Xu, Tao Lu

Research output: Contribution to journalArticleScientificpeer-review

7 Citations (Scopus)
62 Downloads (Pure)

Abstract

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.
Original languageEnglish
Pages (from-to)1533-1556
Number of pages24
JournalVehicle System Dynamics: international journal of vehicle mechanics and mobility
Volume59 (2021)
Issue number10
DOIs
Publication statusPublished - 2020

Keywords

  • Vehicle-track interaction
  • frequency response function
  • sleeper finite element

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