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  • ISSN：0577-6686
机械工程学报

机械工程学报 ›› 2015, Vol. 51 ›› Issue (12): 95-100.doi: 10.3901/JME.2015.12.095

• 运载工程 • 上一篇    下一篇

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内外激励下高速列车齿轮箱箱体动态响应分析

黄冠华1, 王兴宇2, 梅桂明1, 张卫华1，梁树林2   

  1. 1.西南交通大学牵引动力国家重点实验室;
    2.中国北车集团长春轨道客车股份有限公司
  • 出版日期:2015-06-20 发布日期:2015-06-20
  • 基金资助:
    国家自然科学基金重点(U1234208)和中国铁路总公司科技研究开发计划重大课题(2013J008-A)资助项目

Dynamic Response Analysis of Gearbox Housing System Subjected to Internal and External Excitation in High-speed Train

HUANG Guanhua1, WANG Xingyu2, MEI Guiming1, ZHANG Weihua1, LIANG Shulin2   

  1. 1.State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031;
    2.Changchun Railway Passenger Vehicle Company, China CNR Corporation Limited, Changchun 130024
  • Online:2015-06-20 Published:2015-06-20

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摘要： 对高速列车齿轮箱箱体结构的动态响应特性进行分析。对齿轮传动系统内部和外部动态激励进行数值模拟，建立考虑轮齿啮合的高速列车动力车整车动力学模型，内部激励主要考虑齿轮的时变啮合刚度、轮齿啮合阻尼和传递误差，外部激励主要考虑异步电动机的谐波转矩和轨道激励，得到恒功率牵引工况下齿轮传动系统的动态载荷。建立齿轮箱箱体的有限元模型，利用直接积分法分析动态载荷作用下箱体的动态响应，并针对相关频率进行谐响应分析。结果表明，考虑轮齿啮合才能得到齿轮传动系统的高频振动，箱体结构能够满足正常的运营需求，异步电动机谐波转矩频率和齿轮啮合频率在箱体动态响应的主频中都有体现，在箱体结构设计时，应注意箱体自身模态频率与外界频率的错开，以免发生共振。

关键词: 轮齿啮合, 动态响应, 齿轮箱, 共振, 高速列车

Abstract: In order to study the dynamic characteristics of gearbox housing in high-speed train, the internal and external dynamic excitations of gear transmission system in high-speed train are calculated by numerical simulation at first, and a multi-body dynamics model of motor car including the driving system subjected to internal and external excitation is established. In this model, the internal excitations include the time-varying stiffness, damping and transmission error, the external excitations include the harmonic torque of asynchronous motor and rail irregularity, then the dynamic forces generated in the gear mesh are calculated when the train running with constant power. What is more, the dynamic forces of housing bearing seats are obtained and loaded to the finite element model of gearbox housing, the dynamic response of housing is carried out using a direct integrate method and harmonic response analysis are also finished. The results show that the high frequency vibration of the gear transmission system can only be acquired when the gear meshing is considered in the dynamics model. The gearbox housing structure design is sufficient for operation requirement. Frequency of harmonic torque and the gear mesh frequency are also appeared in the dynamic response of gearbox housing. During the structure design of gearbox, it should pay attention that the gearbox mode natural frequencies need to avoid the meshing frequency and external excitation frequency, so as to prevent the resonance.

Key words: gear meshing, dynamic response, gearbox, resonance, high-speed train

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