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A dynamic model for the vertical interaction of the rail track and wagon system

Authors
Journal
International Journal of Solids and Structures
0020-7683
Publisher
Elsevier
Publication Date
Volume
39
Issue
5
Identifiers
DOI: 10.1016/s0020-7683(01)00224-4
Keywords
  • Rail Track
  • Wagon
  • Timoshenko Beam
  • Hertz Contact
  • Wheel/Rail Irregularities
  • Steady-State Responses

Abstract

Abstract With the advent of high-speed trains, there is a renewed interest in the rail track–vehicle interaction studies. As part of an ongoing investigation of the track system optimisation and fatigue of the track components, a dynamic model is developed to examine the vertical interaction of the rail track and the wagon system. Wagon with four wheelsets representing two bogies is modelled as a 10 degree of freedom subsystem, the track is modelled as a four-layer subsystem and the two subsystems are coupled together via the non-linear Hertz contact mechanism. The current model is validated using several field test data and other numerical models reported in the literature by other researchers.

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