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A comparison of beam models for the dynamics of railway tracks on a non-uniform viscoelastic foundation

  • Université Paris Est, ENPC LIGM, IMAGINE
  • Eurotunnel

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Many numerical or analytical methods have been developed to compute the response of a railway track on a uniform foundation. The rail can then be modelled by different beam models. It was shown that for uniform railway tracks, Euler beam model and Timoshenko beam model give close results. In the case of damaged railway track components, the defaults can cause higher displacements of the rail leading to higher shears. Thus, in this case, the Timoshenko beam model can be more interesting. In this paper, a semi-analytical model for a railway track resting on a non-uniform foundation is proposed where the rail is modelled by a Timoshenko beam. Then, the results obtained with Timoshenko beam model and Euler Bernoulli beam model are compared for both a uniform railway track and a damaged railway track.

Original languageEnglish
Title of host publication"Advances in Acoustics, Noise and Vibration - 2021" Proceedings of the 27th International Congress on Sound and Vibration, ICSV 2021
EditorsEleonora Carletti, Malcolm Crocker, Marek Pawelczyk, Jiri Tuma
PublisherSilesian University Press
ISBN (Electronic)9788378807995
Publication statusPublished - 1 Jan 2021
Event27th International Congress on Sound and Vibration, ICSV 2021 - Virtual, Online
Duration: 11 Jul 202116 Jul 2021

Publication series

Name"Advances in Acoustics, Noise and Vibration - 2021" Proceedings of the 27th International Congress on Sound and Vibration, ICSV 2021
ISSN (Print)2329-3675

Conference

Conference27th International Congress on Sound and Vibration, ICSV 2021
CityVirtual, Online
Period11/07/2116/07/21

Keywords

  • Euler beam
  • Non-uniform foundation
  • Railway tracks dynamics
  • Timoshenko beam

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