A new wheel/rail spatially dynamic coupling model and its verification

被引:170
作者
Chen, G [1 ]
Zhai, WM
机构
[1] Nanjing Univ Aeronaut & Astronaut, Civil Aviat Coll, Nanjing 210016, Peoples R China
[2] SW Jiaotong Univ, Train & Track Res Inst, Chengdu 610031, Peoples R China
基金
中国国家自然科学基金;
关键词
D O I
10.1080/00423110412331315178
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
Based on the theory of vehicle-track coupling dynamics, a new wheel/rail spatially dynamic coupling model is established in this paper. In consideration of rail lateral, vertical and torsion vibrations and track irregularities, the wheel/rail contact geometry, the wheel/rail normal contact force and the wheel/rail tangential creep force are solved in detail. In the new wheel/rail model, the assumption that wheel contacts rail rigidly and wheel always contacts rail is eliminated. Finally, by numeric simulation comparison with international well-known software NUCARS, comparison with vehicle-track vertical coupling model, and comparison with running test results by China Academy of Railway Sciences, the new wheel/rail spatially dynamic coupling model is shown to be correct and effective.
引用
收藏
页码:301 / 322
页数:22
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