二系垂向多功能减振器对铁道车辆动力学的影响研究  

Research on the Influence of Secondary Vertical Multi-functional Damper on Railway Vehicle Dynamics

作　　者：张鑫 池茂儒[1] 罗贇 代亮成 ZHANG Xin;CHI Maoru;LUO Yun;DAI Liangcheng(State Key Laboratory of Traction Power,Southwest Jiao Tong University,Sichuan province Chengdu 610036)

机构地区：[1]西南交通大学牵引动力国家重点实验室,成都610036

出　　处：《机械工程学报》2024年第18期258-265,共8页Journal of Mechanical Engineering

基　　金：国家重点研发计划(2018YFB1201701);国家自然科学基金(U1934203)资助项目。

摘　　要：现提出一种二系垂向多功能减振器(下称多功能减振器),能够减少悬挂元件数量,节约制造和检修成本,且使车辆具有更高的曲线安全性。多功能减振器既能提供垂向减振的功能,又能达到抗侧滚的效果。其根据车辆垂向振动和侧滚运动不同的运动状态,通过连通式结构和阻尼阀系起到垂向减振和抗侧滚的功能。建立多功能减振器数学模型,与试验结果对比验证了减振器模型的准确性较优。进而与车辆动力学模型进行联合仿真,分析多功能减振器对车辆系统动力学性能的影响。仿真结果表明多功能减振器能够在实现垂向减振功能的同时,代替抗侧滚扭杆提供足够的抗侧滚刚度。并且相较于抗侧滚扭杆恒定不变的抗侧滚刚度,多功能减振器能够实现变刚度,在侧滚角较大时,提供更大的抗侧滚刚度,使车辆具有更高的安全性。A secondary vertical multi-functional damper(hereinafter referred to as multi-functional damper)is proposed,which can reduce the number of suspension components,save manufacturing and maintenance costs,and make the vehicle have higher curve safety.The multi-functional damper can provide the function of vertical vibration reduction,and achieve the effect of anti rolling.According to the different motion states of vehicle vertical vibration and roll motion,it has the function of vertical vibration reduction and roll resistance through the connected structure and damping valve system.The mathematical model of the multi-functional damper is established,compared with the experimental results,it is verified that the accuracy of the damper model is better.Then,the vehicle dynamics model is co-simulated to analyze the influence of the multi-functional damper on the dynamic performance of the vehicle system.The simulation results show that the multi-functional damper can provide enough anti rolling stiffness instead of anti rolling torsion bar.Compared with the anti rolling stiffness of the traditional anti rolling torsion bar,the multi-functional damper can achieve variable stiffness,when the roll angle increases,it provides greater anti roll stiffness and make the vehicle have higher safety.

关 键 词：二系垂向多功能减振器 垂向减振 抗侧滚 非线性刚度 

分 类 号：U270[机械工程—车辆工程]