转K7型转向架承载鞍结构优化及动力学性能研究  

ZK7Type Bogie Adapter Structure Optimization and Dynamic Performance Research

作　　者：李亨利[1,2] 李芾[1] 廖军 张显锋 吴畅 祝笈 

机构地区：[1]西南交通大学机械工程学院,四川成都610031 [2]南车眉山车辆有限公司,四川眉山620032

出　　处：《铁道机车车辆》2014年第3期1-4,25,共5页Railway Locomotive & Car

基　　金：国家自然科学基金项目(50975238);四川省科技支撑计划(2013GZX0142);青年科学基金项目(51005190)

摘　　要：转K7型转向架是我国至今唯一投入商业运用的货车副构架式径向转向架。为进一步提高转向架的运行性能,对转K7型转向架与U形副构架铸造一体式的承载鞍系统进行了优化。分离U形副构架和承载鞍功能,设置独立的承载鞍和承载鞍弹性垫。现采用理论分析、动力学仿真计算和线路试验验证的方法对优化承载鞍系统转向架的动力学性能进行了系统研究。仿真结果表明当承载鞍弹性垫刚度在30MN/m以上时,对转向架动力学性能基本无影响,仅起定位板或磨耗板的功能;动力学试验表明承载鞍系统优化后车辆整体动力学性能得到改善。ZK7 type bogie is the only commercial operation freight radial bogie in China. The adapter and U type sub-frame are casting incorporate in the bogie prototype. In order to improve the bogie application performance, the new adapter system design separates thefunction of adapter and sub frame, and the independent adapter and adapter elasticity pad are set. In this paper, the dynamic perform ante of optimiz;ttion desiRn is researchect hased on theory analysis, simulation and field test. The simulation results show that there is nearly no effects on the dynamic performance when the adapter pad stiffness is up to 30 MN/m, and it is only a wear pad. And the field lest indicates that the new adapter system can improve the dynamic performance slightly.

关 键 词：转K7型转向架 径向转向架 承载鞍系统 动力学 线路试验 

分 类 号：U270.331.7[机械工程—车辆工程]