高速车辆天棚阻尼悬挂动力学性能分析  

Dynamic performance analysis of damp suspension for high speed vehicle

作　　者：成金娜 CHENG Jin-na(Railway and Urban Rail T r ansit Research Institute,Tongji Unive r s i t y,Shanghai 201804, China)

机构地区：[1]同济大学铁道与城市轨道交通研究院,上海201804

出　　处：《齐齐哈尔大学学报（自然科学版）》2018年第3期46-50,共5页Journal of Qiqihar University(Natural Science Edition)

基　　金：国家"十二五"科技支撑计划(2015BAG19B02)

摘　　要：基于多体动力学软件UM建立了车辆-轨道耦合动力学模型,并与Matlab进行联合仿真,分别计算比较了被动悬挂方式与天棚阻尼悬挂方式下车辆在刚性轨道上的运行平稳性与安全性动力学指标。计算结果表明,采用天棚阻尼悬挂后,车辆的安全性和平稳性均得到提高。脱轨系数最大改善率为18.3%,轮重减载率最大改善率为7.2%,轮轨横向力最大改善率为14.1%;半主动悬挂的安全性及平稳性均优于被动悬挂。The vehicle-track coupling dynamics model is established by multi-body dynamics software UM and Co-simulation with Matlab. The running stability and safety dynamics of the vehicle on the rigid orbit were calculated and compared respectively between the passive suspension and the ceiling suspension. The calculation results show that the safety and stability of the vehicle are improved by ceiling suspension. The maximum improvement rate of derailment coefficient is 18.3%,The maximum improvement rate of wheel load reduction rate was 7.2%, and the maximum rate of wheel-rail lateral force improvement was 14.1%. Semi-active suspension was superior to passive suspension in safety and stability.

关 键 词：刚性轨道 悬挂方式 UM动力学模型 Matlab联合仿真 天棚阻尼控制 

分 类 号：U270.11[机械工程—车辆工程]