水介质对动车组直线运行性能的影响

doi:10.3901/JME.2017.18.146

机械工程学报 ›› 2017, Vol. 53 ›› Issue (18): 146-151.doi: 10.3901/JME.2017.18.146

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水介质对动车组直线运行性能的影响

李国栋¹, 崔大宾^1,2, 申鹏³, 李立²

1. 西南交通大学牵引动力国家重点实验室成都 610031;
2. 西南交通大学机械工程学院成都 610031;
3. 北华航天工业学院机电工程学院廊坊 065000

收稿日期:2016-08-02 修回日期:2016-11-30 出版日期:2017-09-20 发布日期:2017-09-20
通讯作者: 崔大宾(通信作者),男,1982年出生,博士,硕士研究生导师.主要从事铁道车辆动力学及轮轨关系研究.E-mail:cdb1645@163.com
作者简介:李国栋,男,1975年出生,博士研究生,教授级高级工程师.主要从事铁道车辆动力学及强度研究.E-mail:lgdcrc@163.com
基金资助:
国家自然科学基金（51605394）、四川省教育厅科技（16ZB0011）、中国博士后科学基金（2015M572492）和乐山市重点研究（16ZDYJ0147）资助项目。

Influence of Water Condition Between Wheel and Rail on EMU Vehicle Dynamic Behavior

LI Guodong¹, CUI Dabin^1,2, SHEN Peng³, LI Li²

1. State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031;
2. School of Mechanical Engineering, Southwest Jiaotong University, Chengdu 610031;
3. School of Mechanical and Electrical Engineering, North China Institute of Aerospace Engineering, Langfang 065000

Received:2016-08-02 Revised:2016-11-30 Online:2017-09-20 Published:2017-09-20

摘要/Abstract

摘要： 采用理论分析、试验研究及数值仿真相结合的方法，揭示水介质对高速铁路车辆动力学性能的影响。在JD-1轮轨模拟试验机上进行干态、水介质和油介质条件下的黏着特性试验，对不同介质下的轮轨黏着系数进行分析，发现水介质下轮轨黏着系数较干态情况降低了50%～60%，油介质下甚至较低到0.02以下。根据我国现有某型动车组参数建立车辆系统动力学模型，在试验获得的摩擦因数范围内，分析车辆通过轨道不平顺激励时的运动行为。结果表明，当轮轨受较大横向冲击时，较小的黏着系数可以有效降低轮对横移量，减小轮对振动加速度。装有新车轮及磨耗后车轮的车辆在我国高速线路实测轨道不平顺激励下运行，水介质可以有效降低较大横向冲击造成的轮对横移量及横向加速度峰值，对装有新旧车轮的车辆的临界速度均有明显的提高。

关键词: 动车组, 动力学, 黏着系数, 水介质

Abstract: The influence of water condition on vehicle dynamic behavior is brought to light through the complex method with theory analysis, experiment investigation and numerical simulation. The adhesion property of under dry condition, water condition and oil condition between wheel and rail are tested separately on JD-1 wheel/rail simulation machine, the adhesion coefficient under these condition is analyzed. The results indicate that, compared with the dry condition, the adhesion coefficient under water condition decreases 50%-60%, the adhesion coefficient under oil condition decreases to 0.02 even. The vehicle model is built according to the parameters of EMU vehicle, and the vehicle dynamic performance is analyzed when vehicle passing the irregularity track. The results show that the littler adhesion coefficient can decrease the lateral displacement and accelerator of wheelset. The littler adhesion coefficient leads to smaller lateral displacement and accelerator of wheelset, and water condition between wheel and rail can enhance critical haunting speed of the vehicle with new or measured wheel profiles.

Key words: adhesion coefficient, dynamics, EMU vehicle, water condition

中图分类号:

U266

李国栋, 崔大宾, 申鹏, 李立. 水介质对动车组直线运行性能的影响[J]. 机械工程学报, 2017, 53(18): 146-151.

LI Guodong, CUI Dabin, SHEN Peng, LI Li. Influence of Water Condition Between Wheel and Rail on EMU Vehicle Dynamic Behavior[J]. Journal of Mechanical Engineering, 2017, 53(18): 146-151.

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水介质对动车组直线运行性能的影响

Influence of Water Condition Between Wheel and Rail on EMU Vehicle Dynamic Behavior

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