• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2019, Vol. 55 ›› Issue (16): 104-113.doi: 10.3901/JME.2019.16.104

• 运载工程 • 上一篇    下一篇

面向轮缘磨耗的动车组车轮型面多目标优化设计

崔大宾1, 赵锐1, 李俊1, 佘家豪1, 李立1, 温泽峰2   

  1. 1. 西南交通大学机械工程学院 成都 610031;
    2. 西南交通大学牵引动力国家重点实验室 成都 610031
  • 收稿日期:2018-11-06 修回日期:2019-06-28 出版日期:2019-08-20 发布日期:2019-08-20
  • 通讯作者: 崔大宾(通信作者),男,1982年出生,博士,副教授,硕士研究生导师。主要研究方向为铁道车辆动力学及轮轨关系、系统优化设计。E-mail:cdb1645@163.com
  • 作者简介:赵锐,男,1994年出生,硕士研究生。主要研究方向为轮轨关系及磨耗预测。E-mail:rzhao1994@163.com
  • 基金资助:
    国家自然科学基金(51605394,U1434210)、四川省教育厅(16ZB0011)和乐山市重点研究(16ZDYJ0147)资助项目。

Multi-objective Optimization of EMU Wheel Profile Oriented to Flange Wear Control

CUI Dabin1, ZHAO Rui1, LI Jun1, SHE Jiahao1, LI Li1, WEN Zefeng2   

  1. 1. School of Mechanical Engineering, Southwest Jiaotong University, Chengdu 610031;
    2. State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031
  • Received:2018-11-06 Revised:2019-06-28 Online:2019-08-20 Published:2019-08-20

摘要: CRH1型动车组最初采用的LMA型车轮踏面不能很好地匹配列车的悬挂参数,影响了列车在直线和大半径曲线上运行时的稳定性,后被新设计的LMD型踏面取代。LMD型踏面为列车运行提供更好的稳定性,却出现了严重的轮缘磨损和钢轨侧磨现象。此次优化过程首先对LMA和LMD型踏面的综合性能进行理论分析,并依据当前两种型面使用中出现的问题,以保证车辆直线运行稳定性与减小通过小半径曲线时的轮缘磨耗为目标,建立数值优化模型,并采用改进的粒子群优化算法对模型进行了求解。结果表明,该方法具有较快的计算速度与收敛性;获得的新型车轮踏面可以保证CRH1型动车组较好的直线运行稳定性,小半径曲线通过时较小的轮轨横向力和轮对冲角。研究内容为车轮型面的多目标优化提供了可行方案,为改善CRH1型动车组综合服役性能提供理论参考。

关键词: 车辆动力学, 车轮型面设计, 多目标优化, 轮缘磨耗

Abstract: The previous LMA profile used on the CRH1 train but it does not match well with the train suspension parameters and also causes the instability of the train on tangent track and large curved track. Therefore the LMD profile was designed as the replacement of the LMA profile for the CRH1 train. However, the use of the LMD profile results in the serious wheel flange and rail gauge corner wear but it can provide better stability compared to the LMA profile. This process of optimization firstly presents the evaluation of using LMA and LMD profiles, and then a development of the wheel profile is objected in terms of both currently used profiles, which is not only to minimize the flange wear in sharp curve track and also take the vehicle dynamic behavior in tangent track into consideration. Therefore, improved particle swarm optimization method was proposed for the optimization of the wheel flange and rail gauge corner wear and the stability of wheelsets. The requirements of the wheel profile geometry are investigated through proposed optimization method which has both fast calculation speed and convergence. Furthermore, the lateral force and the angle of attack of wheel/rail of the CRH1 train will be decreased through the optimized wheel profile. The findings show that the developed profile after the optimization procedure is fairly acceptable for the requirements of the wheel-rail interface and dynamic behavior of CRH1 train.

Key words: flange wear, multi-objective optimization, vehicle dynamics, wheel profile design

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