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SI Dao-lin, WANG Kai-yun, ZHAI Wan-ming, LIU Jian-xin. Effect of traction force on lateral stability of locomotive[J]. Journal of Traffic and Transportation Engineering, 2009, 9(1): 21-24. doi: 10.19818/j.cnki.1671-1637.2009.01.005
Citation: SI Dao-lin, WANG Kai-yun, ZHAI Wan-ming, LIU Jian-xin. Effect of traction force on lateral stability of locomotive[J]. Journal of Traffic and Transportation Engineering, 2009, 9(1): 21-24. doi: 10.19818/j.cnki.1671-1637.2009.01.005
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Effect of traction force on lateral stability of locomotive

doi: 10.19818/j.cnki.1671-1637.2009.01.005

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

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  • Author Bio:

    SI Dao-lin(1983-), male, graduate student, +86-28-86466504, sidaolin@163.com

    WANG Ka-i yun(1974-), male, associate researcher, +86-28-87600773, kywang@home.swjtu.edu.cn

  • Received Date: 2008-10-21
  • Publish Date: 2009-02-25
    Abstract
  • In order to investigate the lateral stability of locomotive under traction condition, a dynamics model of a speed-raising locomotive was put forward by using MBS software SIMPACK. The nonlinear critical speed of locomotive was regarded as the judging index of the lateral stability. The numerical integration method was adopted to calculate the critical speed. The effect of the traction coefficient on the critical speeds was studied, including the speeds on tangent and curved tracks. The result indicates that the traction force influences the value and the direction of wheel/rail creep force greatly. The critical speed increases firstly with the increase of the traction coefficient, and then reduces. The critical speed on curved track is lower than that on tangent track under the same traction coefficient, and the smaller the curve radius is, the lower the critical speed is. It is pointed that the shift of wheelset should not be selected as the judging index of the lateral stability of locomotive, it is reasonable to judge the lateral stability using longitudinal creep force.

     

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