120 km/h A型地铁车辆径向转向架动力学性能研究  

Dynamics Performance of 120 km/h Type A Metro Vehicle Radial Bogie

作　　者：肖权益 池茂儒[1] 梁树林[1] XIAO Quanyi;CHI Maoru;LIANG Shulin(State Key Laboratory of Traction Power,Southwest Jiaotong University,Chengdu 610031,China)

机构地区：[1]西南交通大学牵引动力国家重点实验室,四川成都610031

出　　处：《机械》2021年第10期59-65,共7页Machinery

基　　金：国家重点研发计划(2018YFB1201701);牵引动力国家重点实验室自主课题(2018TPL_T04)。

摘　　要：为使地铁车辆转向架在保证良好蛇形稳定性的基础上改善其曲线通过性,阐述了径向转向架的导向原理,并基于多体动力学仿真软件建立了传统、自导向以及迫导向三种地铁车辆动力学模型,对比分析了不同转向架的动力学性能。研究结果表明,地铁车辆采用径向转向架能显著改善冲角以及轮轨磨耗,但自导向转向架在极小半径曲线径向效果不佳;为提高车辆直线稳定性,自导向转向架径向机构需要匹配大阻尼减振器,迫导向转向架需要通过悬挂参数匹配以防车辆低锥度失稳。In order to improve the curve passing performance of metro bogies and ensure good stability at the same time,three dynamic models of metro vehicles,including traditional,self-steering and forced-steering vehicles,were established based on the steering principle of radial mechanism and the multi-body dynamics simulation software.Dynamics performances of different bogies were compared and analyzed.The results show that the radial bogie can significantly reduce the angle of attack and wear of wheel and rail,but the radial effect of self-steering bogie is not ideal in small radius curve.In order to improve the stability of the vehicle,the radial mechanism of self-steering bogie needs to be equipped with large damping shock absorber,and the forced-steering bogie should match the suspension parameters to prevent lateral instability of vehicles with low equivalent conicity.

关 键 词：地铁车辆 自导向转向架 迫导向转向架 动力学性能 

分 类 号：U270.3[机械工程—车辆工程]