基于修正的轮轨非Hertz接触的重载铁路曲线超高对钢轨磨耗的影响分析

doi:10.3901/JME.2018.04.022

机械工程学报 ›› 2018, Vol. 54 ›› Issue (4): 22-29.doi: 10.3901/JME.2018.04.022

基于修正的轮轨非Hertz接触的重载铁路曲线超高对钢轨磨耗的影响分析

杨新文, 姚一鸣, 周顺华, 练松良

同济大学道路与交通工程教育部重点实验室上海 201804

收稿日期:2017-05-02 修回日期:2017-12-25 出版日期:2018-02-20 发布日期:2018-02-20
作者简介:杨新文,男,1973年出生,博士,副教授,博士研究生导师。主要研究方向为铁路噪声与振动,轮轨关系,列车与线路系统动力学,铁路轨道结构与养护维修等。E-mail:yangxinwen0603@163.com
基金资助:
国家自然科学基金（51778484，51678445）和牵引动力国家重点实验室开放课题（TPL1602）资助项目

Influence of Curve Superelevation of Heavy Haul Railway on Rail Wear Based on Revised Wheel/Rail Non-Hertz Contact

YANG Xinwen, YAO Yiming, ZHOU Shunhua, LIAN Songliang

Key Laboratory of Road and Traffic Engineering of Ministry of Education, Tongji University, Shanghai 201804

Received:2017-05-02 Revised:2017-12-25 Online:2018-02-20 Published:2018-02-20

摘要/Abstract

摘要： 为了探讨重载铁路平曲线超高对钢轨磨耗的影响，首先利用有限元方法求解了轮轨法向接触影响系数，然后建立了详细的钢轨磨耗预测分析模型，模型包括车辆-轨道耦合动力学模型、修正的轮轨非赫兹法向接触模型、轮轨切向接触模型和Archard磨耗模型，并用现场实测结果验证了预测模型的正确性。利用该模型计算分析了曲线超高对重载铁路钢轨磨耗的影响。结果表明：假定车速为60 km/h，在曲线半径450 m线路条件下，曲线中点处外轨的侧磨量大于垂磨量；随着通过总重的增加，钢轨磨耗宽度，垂磨量呈阶梯状发展，磨耗宽度在磨耗初期发展迅速，随后趋于稳定；在曲线超高0.05 m、0.07 m、0.09 m，线路半径1 000 m的条件下，随着外轨超高增大，外轨磨耗有增大的趋势，内轨磨耗有减小的趋势，主要原因是轮对横移量比轮轨法向力对钢轨磨耗的影响更加明显。

关键词: Archard磨耗模型, 非赫兹接触, 影响系数, 重载铁路

Abstract: In order to investigate the effect of curve superelevation on rail wear of heavy haul railway, a finite element method is used to solve the wheel/rail normal contact influence coefficient, and a detail model is established to predict and analyze the rail wear. The model includes vehicle-track coupled dynamics model, the revised wheel/rail non Hertz normal contact model, wheel/rail tangential contact model and the Archard wear model, and verifies the correctness of the prediction model with field measurement. The model is used to calculate the influence of the curve superelevation on rail wear in heavy haul railway. The results show that:(1) under the conditions of curve radius 450m at a vehicle speed of 60km/h, the side wear of higher rail is greater than the vertical wear; (2) with the wheel passing weight increasing, the development of wear width and vertical wear are stepped up, and the wear width increases rapidly in the early phase, then tends to be stable; (3) under the conditions of superelevation of 0.05m, 0.07m, 0.09m and curve radius 1000m, the higher rail's wear increase, whereas the lower rail's wear decreased, which is because the effect of lateral displacement of wheelset is more significant than that of wheel/rail normal force on rail wear.

Key words: archard wear model, heavy haul railway, influence coefficient, non-Hertz contact

中图分类号:

U211

杨新文, 姚一鸣, 周顺华, 练松良. 基于修正的轮轨非Hertz接触的重载铁路曲线超高对钢轨磨耗的影响分析[J]. 机械工程学报, 2018, 54(4): 22-29.

YANG Xinwen, YAO Yiming, ZHOU Shunhua, LIAN Songliang. Influence of Curve Superelevation of Heavy Haul Railway on Rail Wear Based on Revised Wheel/Rail Non-Hertz Contact[J]. Journal of Mechanical Engineering, 2018, 54(4): 22-29.

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基于修正的轮轨非Hertz接触的重载铁路曲线超高对钢轨磨耗的影响分析

Influence of Curve Superelevation of Heavy Haul Railway on Rail Wear Based on Revised Wheel/Rail Non-Hertz Contact

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