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 multibody 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 >18 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.
出处
《铁道车辆》
北大核心
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)
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
directly driving bogie
hinged frame
welded frame
dynamics performance
simulation analysis
