直接驱动转向架构架形式对车辆动力学性能影响分析  

Analysis of the Effect of Directly Driving Bogie Frame on Dynamics Performance of Vehicles

作　　者：周勇[1] 黄志辉[2] 

机构地区：[1]成都铁路局成都车辆段,四川成都610031 [2]西南交通大学牵引动力国家重点实验室,四川成都610031

出　　处：《铁道车辆》2012年第12期1-4,共4页Rolling Stock

基　　金：国家自然科学基金项目(51075339)

摘　　要：采用多体动力学分析软件SIMPACK分别建立了直接驱动转向架铰接构架和焊接构架的车辆系统动力学模型,通过在直线和曲线上的仿真计算,分析了一系悬挂垂向刚度KZ和一系垂向阻尼系数DZ对2种方案动力学性能的影响。研究表明:当KZ或者DZ较大时(本模型中KZ大于1.8MN/m,DZ大于50kN.s/m),铰接构架转向架的轮轨间垂向动态相互作用要明显小于焊接构架转向架,且铰接构架转向架在小曲线通过时的防脱轨安全性要高于焊接构架转向架。The vehicle system dynamics models for directly driving bogies with hinged frames and welded frames are set up respectively with the multibody dynamics analysis software SIMPACK. Through the simulation calculation on straight line and curve, the effects of KZ, the vertical stiffness of the primary suspension, and DZ, the vertical damping coefficient, on the two schemes of dynamics performance,are analyzed. The study shows that, when KZ or DZ is fairly big (KZ >18 MN/m,DZ>50 kN·s/m), the vertical dynamic interaction between wheel and rail for bogie with hinged frame is obviously less than that of the bogie with welded frame, and the derailment prevention safety of the bogie with welded frame in negotiation of curve of small radius is higher than that of the bogie with welded frame.

关 键 词：直接驱动转向架 铰接构架 焊接构架 动力学性能 仿真分析 

分 类 号：U270.11[机械工程—车辆工程]