一系垂向悬挂对重载货车轮轨动力作用的影响  

Optimization of Primary Vertical Suspension of Heavy Haul Freight Car

作　　者：杨春雷[1,2] 李芾[1] 黄运华[1] 

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

出　　处：《西南交通大学学报》2011年第5期820-825,共6页Journal of Southwest Jiaotong University

基　　金：中央高校基本科研业务费专项资金资助项目(SWJTU09ZT07);国家自然科学基金资助项目(50821063)

摘　　要：为了实现机车车辆低动力作用,基于车辆/轨道耦合动力学原理,应用车辆与线路最佳匹配设计方法和车辆/轨道空间耦合动力学模型,仿真分析了重载货车一系垂向悬挂对轮轨动力作用的影响,优化了一系悬挂参数,降低了重载货车轮轨动力的相互作用.研究结果表明:一系垂向刚度对车辆轮轨动力作用影响甚微,一系垂向阻尼在高量值范围增加阻尼值,减轻轨道结构的振动,加剧车辆本身振动;重载货车一系垂向阻尼取50～500 kN.s/m为宜.The effects of the primary vertical suspension on the dynamic mechanics of heavy haul freight cars were analyzed by simulation to decrease dynamic wheel/rail interactions through optimizing the parameters of the primary vertical suspension.The vehicle-track coupling dynamics and the method of optimal matching design were applied in the simulation.The simulation results indicated that the primary vertical stiffness had little effect on the dynamic wheel/rail interactions;when at high values,the primary vertical damping decreased the vibrations of track structure,but increased those of car body;and the preferable primary vertical damping was 50500 kN·s/m.

关 键 词：重载货车 一系垂向悬挂 仿真分析 轮轨动力作用 

分 类 号：U270.1[机械工程—车辆工程]