• ISSN 0258-2724
  • CN 51-1277/U
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Volume 30 Issue 2
Apr.  2017
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Article Contents
Journal of Southwest Jiaotong University  > 2017  >  30(2): 232-238.
QIAN Yao, WANG Jian, WANG Ping, AN Boyang, SU Qian, XU Jingmang. Wheel-Rail Profile Matching for High Speed Railway with Different Rail Profiles[J]. Journal of Southwest Jiaotong University, 2017, 30(2): 232-238. doi: 10.3969/j.issn.0258-2724.2017.02.004
Citation: QIAN Yao, WANG Jian, WANG Ping, AN Boyang, SU Qian, XU Jingmang. Wheel-Rail Profile Matching for High Speed Railway with Different Rail Profiles[J]. Journal of Southwest Jiaotong University, 2017, 30(2): 232-238. doi: 10.3969/j.issn.0258-2724.2017.02.004
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Wheel-Rail Profile Matching for High Speed Railway with Different Rail Profiles

doi: 10.3969/j.issn.0258-2724.2017.02.004
  • Received Date: 10 May 2016
  • Publish Date: 25 Apr 2017
    Abstract
  • In order to analyze the influence of different rail profiles on the wheel-rail profile matching of high-speed railway in China, the classic track line method, the 3D non-Hertz rolling contact theory and the vehicle-track coupling dynamics are used to address the profile matching issue between the LMA wheel tread and rails with different profiles, such as types CHN60, 60N and 60D, by analyzing the wheel-rail contact characteristics and the vehicle dynamic performance. The results show that the wheel-rail contact geometry relationship differs with different rail profiles. In whatever cases of wheelset lateral displacements, the wheel-rail contact stress in the CHN60 rail will be smaller than that with the other two rail profiles. When the wheelset lateral displacement is 6 mm, an optimal wheel-rail contact state is achieved in the CHN60 rail, in which the contact spot area is the largest and the contact stress distribution is uniform. In addition, rail profile has a big influence on the critical speed and curve passing performance of a vehicle. The critical speed of the vehicle is about 763 km/h when the 60D rail is matched with the LMA wheel tread, which is the highest of the three. The maximum wheelset lateral force and displacement with the CHN60 rail are 3.584 kN and 3.35 mm, respectively, the smallest of the three, implying that the CHN60 rail owns the best curving passing performance.

     

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