Effect of vehicle vibration environment of high-speed train on dynamic performance of axle box bearing
Effect of vehicle vibration environment of high-speed train on dynamic performance of axle box bearing
复制标题
DOI：
10.1080/00423114.2018.1473615
复制
发表时间：
2019-04
影响因子：
3.6
通讯作者：
Zhiwei Wang;Weihua Zhang;Zhonghui Yin;Yao Cheng;G. Huang;H. Zou
中科院分区：
文献类型：
--
作者：
Zhiwei Wang;Weihua Zhang;Zhonghui Yin;Yao Cheng;G. Huang;H. Zou
在本研究中，我们建立了考虑牵引驱动系统和轴箱轴承的车辆-轨道综合三维耦合动力学模型。该模型在详细分析轴箱轴承的结构特性和工作机理的基础上，考虑了轴箱轴承与轮对、转向架框架等部件之间的动态相互作用。考虑了齿轮时变啮合刚度、轴承时变刚度、轴承间隙和轨道不规则性等复杂动力激励。然后，基于所建立的动力学模型，通过数值仿真验证了车辆-轨道系统的动力学响应。结果表明，牵引传动系统和轨道不平整度对轴箱轴承的动态相互作用有显著影响。论证了在评估轴箱轴承动态性能时，考虑齿轮啮合和轨道不平整引起的激励的必要性。
ABSTRACT In this study, we developed a comprehensive three-dimensional vehicle–track coupled dynamics model considering the traction drive system and axle box bearing. In this model, dynamic interactions between the axle box bearing and other components, such as the wheelset and bogie frame, are considered based on a detailed analysis of the structural properties and working mechanism of the axle box bearing. A few complicated dynamic excitations, such as the time-varying mesh stiffness of gears, time-varying stiffness of bearing, bearing gaps and track irregularities, are considered. Then, the dynamic responses of the vehicle–track system are demonstrated via numerical simulations based on the established dynamics model. The results indicate that the traction drive system and track irregularities can significantly influence the dynamic interactions of the axle box bearing. The necessity of considering the excitation caused by gear meshing and track irregularities when assessing the dynamic performance of the axle box bearing is demonstrated.