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Analysis of the Track Critical Velocity in High-Speed Railway

  • Wan-Kai Zhang
  • Li YuanEmail author
  • Zhen-Dong Cui
Conference paper
Part of the Advances in Science, Technology & Innovation book series (ASTI)

Abstract

A model was developed for analyzing the track critical velocity in this study. It is a double-beam model including rail, rail pad, track slab and cement-asphalt mortar (CA mortar). The model vibration differential equations were transformed by the mobile coordinate system and the Fourier Transform. Then the numerical solution could be easily obtained based on Matlab software. The results from this model were presented for track critical velocities at different rail pad stiffness values. According to these results, there are several track critical velocities in the track structure and the stiffness of rail pad has no obvious effect on the minimum track critical velocity which is the most important velocity in reality.

Keywords

Double-beam Fourier transform Track critical velocity 

Notes

Acknowledgements

This work was funded by National Key R&D Program of China (2017YFC1500702).

References

  1. 1.
    Sheng, X., Jones, C.J.C., Thompson, D.J.: A theoretical model for ground vibration from trains generated by vertical track irregularities. J. Sound Vib. 272(3), 937–965 (2004)CrossRefGoogle Scholar
  2. 2.
    Sheng, X., Jones, C.J.C., Thompson, D.J.: A theoretical study on the influence of the track on train-induced ground vibration. J. Sound. Vib. 272(3), 909–936 (2004)CrossRefGoogle Scholar

Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.State Key Laboratory for Geomechanics and Deep Underground Engineering, School of Mechanics and Civil EngineeringChina University of Mining and TechnologyXuzhouChina

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