A simplified yaw damper model for use in dynamics simulation
A simplified yaw damper model for use in dynamics simulation
复制标题
用于动力学仿真的简化偏航阻尼器模型
DOI：
10.1007/978-3-030-38077-9_69
复制
发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Jing ZENG
中科院分区：
文献类型：
--
作者：
Caihong HUANG;Jing ZENG
建立了高速列车偏航阻尼器的简化物理模型，该模型能够以较少的计算工作量再现其动态性能。然后，考虑静态和动态条件下的实验结果进行了适当的验证。最后，将该模型与传统的麦克斯韦模型集成到高速铁路车辆的三维MBS模型中，对与车辆稳定性相关的车辆动力学进行了比较。在低锥度情况下，该模型与麦克斯韦模型具有较好的一致性。这是因为所提出的模型的F-D特性在低激励频率下近似遵循椭圆和对称形状，类似于麦克斯韦模型。然而，在高锥度的情况下，车辆动力学比较两个阻尼器模型有很大的不同。这是因为本文所研究的阻尼器的F-D特性在高激励频率下是非线性和非对称的，不能用麦克斯韦模型的椭圆和对称特性来描述。结果表明，该模型可用于研究各种工况下的铁道车辆动力学。
A simplified physical model of a high-speed train yaw damper is developed which has the ability to reproduce its dynamic performance with less computational efforts. It is then suitably validated with experimental results considering static and dynamic conditions. At last, comparisons of vehicle dynamics relevant to vehicle stability are carried out, by integrating the proposed model and conventional Maxwell model into a three dimensional MBS model of a high-speed railway vehicle. In the case of low conicity, the proposed model and Maxwell model show good consistency. This is because the F-D characteristics of the proposed model approximately follow an elliptical and symmetry shape in low excitation frequencies, like the Maxwell model. However, in the case of high conicity, vehicle dynamics are quite different comparing the two damper models. This is because the F-D characteristics of the damper studied in this paper are nonlinear and asymmetrical in high excitation frequencies, and cannot be described by the elliptical and symmetry characteristics of the Maxwell model. It is concluded that the proposed model could be used to study the dynamics of railway vehicle under various operating conditions.