• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2018, Vol. 54 ›› Issue (4): 79-86.doi: 10.3901/JME.2018.04.079

• 钢轨波磨机理与防治 • 上一篇    下一篇

整车无砟轨道钢轨波磨计算模型

李霞1, 吴磊2, 温泽峰3, 金学松3   

  1. 1. 大连交通大学交通运输工程学院 大连 116028;
    2. 西南交通大学峨眉校区机械工程系 峨眉 614202;
    3. 西南交通大学牵引动力国家重点实验室 成都 610031
  • 收稿日期:2017-09-30 修回日期:2018-01-15 出版日期:2018-02-20 发布日期:2018-02-20
  • 通讯作者: 李霞(通信作者),女,1986年出生,博士,讲师。主要研究方向为轮轨关系和车辆轨道动力学。E-mail:xiali20034164@126.com
  • 作者简介:金学松,男,1956年出生,教授,博士研究生导师。主要研究方向为轮轨关系、车辆轨道动力学、轮轨噪声。E-mail:xsjin@home.swjtu.edu.cn
  • 基金资助:
    国家自然科学基金(51405055)、辽宁省自然科学基金(2015020116)、辽宁省教育厅(JDL2017022)和牵引动力国家重点实验室开放课题(TPL1406)资助项目

Rail Corrugation Model Based on Vehicle/Non-ballast Track

LI Xia1, WU Lei2, WEN Zefeng3, JIN Xuesong3   

  1. 1. School of Traffic and Transportation, Dalian Jiaotong University, Dalian 116028;
    2. Department of Mechanical Engineering Southwest Jiaotong University, Emei 614202;
    3. State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031
  • Received:2017-09-30 Revised:2018-01-15 Online:2018-02-20 Published:2018-02-20

摘要: 概述了钢轨波磨研究现状及现有钢轨波磨计算模型。基于刚柔耦合的车辆轨道耦合动力学模型、改进的轮轨非赫兹滚动接触力学模型、钢轨材料摩擦磨损模型和磨耗叠加计算模型,建立整车-无砟轨道钢轨波磨计算模型。其中刚柔耦合的车辆轨道耦合动力学模型可以同时考虑钢轨、轨道板柔性以及钢轨周期离散支撑条件等因素;改进的三维非赫兹接触模型考虑不均匀磨损对轮轨接触的影响;材料摩擦磨损模型考虑自旋对磨耗的贡献。钢轨波磨计算模型考虑了轮轨之间的动力作用对波磨形成和发展的影响,以及波磨导致接触表面改变后其对轮轨接触及动力学的反馈作用。该模型可以模拟整车八个车轮和钢轨相互作用所形成的波磨。利用该模型再现了现场残余波磨的初期演化情况,该项研究可为钢轨波磨的减缓和治理提供理论基础和技术手段。

关键词: 残余波磨, 车辆轨道耦合动力学, 钢轨波磨, 轮轨, 磨损

Abstract: The research status of rail corrugation and the existing theoretical model are reviewed. A rail corrugation model based on vehicle/non-ballast track is established, in the combination of the rigid-flexible coupled vehicle/track model, the modified non-Hertzian rolling contact theory of wheel/rail, material wear model and wear accumulation model. Some factors, such as the flexibility of rail and slab, the discrete support condition of rail pad, are considered in the rigid-flexible coupled vehicle/track model. The effect of rail corrugation on the wheel/rail contact is taken into account in the modified non-Hertzian rolling contact model. The contribution of spin to wear is considered in the wear model. The rail corrugation model can consider not only the effect of wheel/rail transient dynamic interaction on the formation and development of corrugation, but also the effect of the accumulated corrugation on the wheel/rail contact and coupling dynamics. And it can predict the rail corrugation caused by the 8 pair's wheel-rail interaction of the whole vehicle. The present model was used to reproduce the initial evolution of residual corrugation. A theoretical basis and technical support are provided for the mitigation of rail corrugation.

Key words: rail corrugation, residual corrugation, vehicle-track coupling dynamics, wear, wheel-rail

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