一种应用于轮轨滚动接触的非赫兹型简化计算模型-《高速铁路技术》

文章信息/Info

Title:: A Non-Hertz Simplified Calculation Model Applied to Wheel-rail Rolling Contact

作者:: 李粮余; 田春香; 周佳仪; 安博洋; 王平; 1. 中铁二院工程集团有限责任公司, 成都 610031;
2. 西南交通大学高速铁路线路工程教育部重点实验室, 成都 610031

Author(s):: LI Liangyu; TIAN Chunxiang; ZHOU Jiayi; AN Boyang; WANG Ping; 1. China Railway Eryuan Engineering Group Co., Ltd., Chengdu 610031, China;
2. MOE Key Laboratory of High-speed Railway Engineering, Southwest Jiaotong University, Chengdu 610031, China

Keywords:: contact mechanics|vehicle dynamics|tribology|Hertz theory|wheel-rail rolling contact

摘要:: 本文基于经典的STRIPES接触模型，提出一种求解轮轨非赫兹滚动接触行为的快速计算方法。相比于STRIPES接触模型，该方法采用变化的渗透量比例系数，并且采用FaStrip算法求解切向接触问题。为了验证所提方法的有效性，本文运用该方法模拟一系列轮轨滚动接触行为，并与STRIPES模型和CONTACT程序进行对比。结果表明，相比于STRIPES接触模型，本文所提方法能够得到更准确的接触边界、法向压应力和蠕滑曲线，并且考虑了切向应力的非线性分布。该方法可进一步应用于车辆轨道动力学和轮轨磨损计算中以提高分析精度。

Abstract:: Based on the classic STRIPES contact model, this paper proposes a fast calculation method to solve the Non-Hertz rolling contact behavior of the wheel and rail. Compared with the STRIPES contact model, this method adopts the variable scale factor of infiltration capacity and the FaStrip algorithm to solve the tangential contact problem. In order to verify the effectiveness of the proposed method, a series of cases of wheel-rail rolling contact behaviors are simulated with this method, and the results are compared with those obtained from the STRIPES model and the CONTACT program. The results show that in comparison with the STRIPES contact model, the proposed method can result in a more accurate contact boundary, normal pressure stress, and creep curve while considering the nonlinear distribution of tangential stress. This method can be further applied to calculating the vehicle-track dynamics and wheel-rail wear to improve the analysis accuracy.

备注/Memo:: 作者简介:李粮余(1982-),男,高级工程师。基金项目:四川省重点研发项目（2019YFG0460）；中国中铁科研项目（KSWQ204010）引文格式:李粮余, 田春香, 周佳仪, 等. 一种应用于轮轨滚动接触的非赫兹型简化计算模型[J]. 高速铁路技术,2021,12(3):6-13.LI Liangyu, ZHOU Jiayi, TIAN Chunxiang, et al. A Non-Hertz Simplified Calculation Model Applied to Wheel-rail Rolling Contact[J]. High Speed Railway Technology, 2021, 12(3):6-13.