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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

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Résumé

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.

langue originaleAnglais
titre"Advances in Acoustics, Noise and Vibration - 2021" Proceedings of the 27th International Congress on Sound and Vibration, ICSV 2021
rédacteurs en chefEleonora Carletti, Malcolm Crocker, Marek Pawelczyk, Jiri Tuma
EditeurSilesian University Press
ISBN (Electronique)9788378807995
étatPublié - 1 janv. 2021
Evénement27th International Congress on Sound and Vibration, ICSV 2021 - Virtual, Online
Durée: 11 juil. 202116 juil. 2021

Série de publications

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

Une conférence

Une conférence27th International Congress on Sound and Vibration, ICSV 2021
La villeVirtual, Online
période11/07/2116/07/21

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