SUN Chuan-xi, ZHANG Jun, WANG Chun-yan. Finite element analysis of wheel/rail thermo-contact coupling effect[J]. Journal of Traffic and Transportation Engineering, 2011, 11(1): 25-30. doi: 10.19818/j.cnki.1671-1637.2011.01.005
Citation: SUN Chuan-xi, ZHANG Jun, WANG Chun-yan. Finite element analysis of wheel/rail thermo-contact coupling effect[J]. Journal of Traffic and Transportation Engineering, 2011, 11(1): 25-30. doi: 10.19818/j.cnki.1671-1637.2011.01.005

Finite element analysis of wheel/rail thermo-contact coupling effect

doi: 10.19818/j.cnki.1671-1637.2011.01.005
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  • Author Bio:

    SUN Chuan-xi(1980-), male, lecturer, doctoral student, +86-411-84106836, scx@djtu.edu.cn

    ZHANG Jun(1972-)male, professor, PhD, +86-411-84109301, zhangjun@djtu.edu.cn

  • Received Date: 2010-12-01
  • Publish Date: 2011-02-25
  • Aiming at the thermal stress caused by brake, a thermo-contact coupling calculation method was used to simulate the process of wheel/rail thermal contact based on finite element method. The temperature field and displacement field were synchronously solved by using coupling equations. The distributing and varying rules of the stresses for wheel and rail were studied under pure mechanical load condition and thermo-contact coupling condition. The relation among the displacements, temperatures and stresses of wheel's and rail's surfaces and second surfaces were analyzed. Analysis result shows that affected by the thermal stress, the maximum equivalent stress of wheel's surface rises by 18%, and the area with high stress varies from 1-4 mm to 0-3 mm below the surface.

     

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