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Study of the dynamic vehicle-track interaction in a railway turnout

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Abstract

This paper analyzes the vertical dynamic response of a railway track subjected to traffic loads in a turnout, especially around the switch blades and the crossing nose. In order to study the influence of vehicle and track parameters on the vehicle-track dynamics, a numerical feedback interaction between a multi-body model of the vehicle and a 3D finite elements model of the track is carried out. For this purpose, two different models are developed. In the first one, the track is modeled by means of a FE model in the time domain through ANSYS software; while in the second one, the vehicle is simulated as a multi-body model by means of VAMPIRE PRO software. The influence of different parameters (e.g., speed, sprung masses, track stiffness and vehicle eigenfrequencies) on the generation of dynamic loads in a turnout, especially in the switch blades and the crossing nose, is studied. Finally, the vibrations induced by the passing of the vehicle are calculated for different scenarios.

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Authors and Affiliations

  1. University Institute for Multidisciplinary Mathematics, Polytechnic University of Valencia, 46022, Valencia, Spain

    Antonio Enrique Blanco-Saura, José Luis Velarte-González, Fran Ribes-Llario & Julia Irene Real-Herráiz

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  1. Antonio Enrique Blanco-Saura
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  2. José Luis Velarte-González
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  3. Fran Ribes-Llario
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  4. Julia Irene Real-Herráiz
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Correspondence to Julia Irene Real-Herráiz.

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Blanco-Saura, A.E., Velarte-González, J.L., Ribes-Llario, F. et al. Study of the dynamic vehicle-track interaction in a railway turnout. Multibody Syst Dyn 43, 21–36 (2018). https://doi.org/10.1007/s11044-017-9579-2

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  • DOI: https://doi.org/10.1007/s11044-017-9579-2

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