| 非赫兹接触下轮轨接触蠕滑力的计算 |
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| 引用本文： | 王小松,葛耀君,吴定俊.非赫兹接触下轮轨接触蠕滑力的计算[J].铁道学报,2007,29(4):96-100. |
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| 作者姓名： | 王小松 葛耀君 吴定俊 |
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| 作者单位： | 1. 重庆交通大学,桥梁系,重庆,400074;同济大学,土木工程防灾国家重点实验室,上海,200092
2. 同济大学,土木工程防灾国家重点实验室,上海,200092 |
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| 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。
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| 关 键 词： | 非赫兹接触 轮轨接触 蠕滑力 |
| 文章编号： | 1001-8360（2007）04-0096-05 |
| 修稿时间： | 2006-10-302007-01-22 |
Calculation of Creep Forces of Wheel-rail Contact under Non-Hertzian Conditions |
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| WANG Xiao-song,GE Yao-jun,WU Ding-jun.Calculation of Creep Forces of Wheel-rail Contact under Non-Hertzian Conditions[J].Journal of the China railway Society,2007,29(4):96-100. |
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| Authors: | WANG Xiao-song GE Yao-jun WU Ding-jun |
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| Affiliation: | 1. Department of Bridge Engineering, Chongqing Jiaotong University, Chongqing 400074, China;2. State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China |
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| Abstract: | 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. |
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| Keywords: | non-Hertzian contact rail-wheel contact creep force |
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