Analysis method of dynamic responses on slab track

ZHAO Huai-yun; LIU Jian-xin; ZHAI Wan-ming

Volume 7 Issue 5

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ZHAO Huai-yun, LIU Jian-xin, ZHAI Wan-ming. Analysis method of dynamic responses on slab track[J]. Journal of Traffic and Transportation Engineering, 2007, 7(5): 19-23.

Citation:

ZHAO Huai-yun, LIU Jian-xin, ZHAI Wan-ming. Analysis method of dynamic responses on slab track[J]. Journal of Traffic and Transportation Engineering, 2007, 7(5): 19-23.

ZHAO Huai-yun, LIU Jian-xin, ZHAI Wan-ming. Analysis method of dynamic responses on slab track[J]. Journal of Traffic and Transportation Engineering, 2007, 7(5): 19-23.

Citation:

ZHAO Huai-yun, LIU Jian-xin, ZHAI Wan-ming. Analysis method of dynamic responses on slab track[J]. Journal of Traffic and Transportation Engineering, 2007, 7(5): 19-23.

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Analysis method of dynamic responses on slab track

Traction Power State Key Laboratory, Southwest Jiaotong University, Chengdu 610031, Sichuan, China

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Author Bio:
Zhao Huai-yun(1974-)，male，doctoral student of engineering. +86—28-87600773，zhao2ws@126.com

Liu Jian-xin(1965-), male, EngD, professor.+86—28—87600290, jxliu@home.swjtu.edu.cn
Received Date: 2007-08-10
Publish Date: 2007-10-25

Abstract

Abstract

In order to calculate the dynamic responses of slab track subjected to moving vehicular loads, slab was treated as linear viscoelastic continuously supported beam, rail was modeled as linear viscoelastic discretely supported beam, track and slab were regarded as a whole and represented by using finite elements, vehicle-track coupling dynamics theory and total potential energy principle with stationary value in elastic system dynamics were applied, a vertical dynamic coupling model of high-speed train and slab track was established, its dynamics equations were set up, and wheel and rail dynamic responses at the weld joint of slab track were calculated.Simulation result shows that comparing with existing methods, the variational trends and ranges of their computation results are basically consistent, so the model is feasible.
- high-speed railway,
- slab track,
- finite element method,
- vehicle-track coupling dynamics,
- dynamic response

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References(10)

References

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