摘要
以弹性半空间非赫兹接触理论计算轮轨法向接触问题,得到比较真实的法向压力分布。在此基础上,根据修正的FastSim算法计算了轮轨在单点接触、轮缘接触和单接触斑内两点接触情况下的蠕滑力。与CON-TACT的对比表明,修正的FastSim算法在计算轮缘接触时具有比较精确的结果,在计算单接触斑内两点接触时的精度相对于Shen-Hedrick-Elkins理论和FastSim算法均有较大的提高。基于修正的FastSim算法编制了便于风-列车-桥梁耦合分析应用的蠕滑力插值数表MFTTLM。
Based on the real normal pressure distribution of wheel-rail contact, which is obtained by the elastic half-space non-Hertzian contact theory, the FastSim algorithm is modified and then applied to calculate the creep forces under the circumstances of single contact, flange contact and double contact in the single contact zone. Comparison with CONTACT indicates that the modified FastSim algorithm gives relatively accurate results when flange contact occurs, and comparison with the FastSim algorithm and Shen-Hedrick-Elkins theory shows that the modified FastSim algorithm gives better solution when double contact occurs in the single contact zone. The modified FastSim Traction Table used for wind-vehicle-bridge coupling analysis is also compiled.
出处
《铁道学报》
EI
CAS
CSCD
北大核心
2007年第4期96-100,共5页
Journal of the China Railway Society
基金
国家自然科学基金资助项目(50538050)
关键词
非赫兹接触
轮轨接触
蠕滑力
non-Hertzian contact
rail-wheel contact
creep force
作者简介
王小松（1977-），男，湖北公安人，博士研究生。E-mail：xiaosongw2000@263．net
