吊挂设备对高速列车弹性车体垂向振动特性的影响  

Influence of suspended devices on vertical vibration of flexible car body of high-speed railway vehicle

作　　者：陈翔宇 缪炳荣[1] 雒耀祥 蒋钏应 杨树旺 Chen Xiangyu;Yan Bingrong;Luo Yaoxiang;Jiang Chuanying;Yang Shuwang(State Key Laboratory of Traction Power,Southwest Jiaotong University,Sichuan Chengdu 610031)

机构地区：[1]西南交通大学牵引动力国家重点实验室

出　　处：《汽车实用技术》2019年第12期99-104,112,共7页Automobile Applied Technology

基　　金：国家自然基金面上项目(51375405,51775456);国家重点实验室自主基金(2016TPL_T10)

摘　　要：为了研究车下吊挂设备对高速列车车体弹性振动的影响,文章搭建了车体与吊挂设备的刚柔耦合垂向动力学模型,通过对比刚柔耦合模型和多刚体模型的加速度功率谱密度研究了车体柔性对车辆垂向振动特性的影响;通过控制变量法改变吊挂设备的悬挂参数,分析了不同的悬挂系统频率、悬挂系统阻尼比和悬挂质量对车体中心位置的加速度幅频特性的影响;最后,将吊挂设备视为动力吸振器,采用Jacquot动力吸振器参数优化理论对悬挂参数进行优化。结果表明,合理的选择吊挂设备的悬挂参数可以有效的抑制的车体弹性振动。In order to study the influence of suspended devices on the elastic vibration of high-speed railway vehicle, this paper builds a rigid-flexible coupled vertical dynamics model of vehicle body and suspension equipment. Firstly, by com -pares the acceleration power spectrum of rigid-flexible coupling model and multi-rigid model, the effects of vehicle body flexibility on vertical vibration of vehicle has been studied;Secondly, the suspension parameters of the suspended devices are changed, such as the frequency of suspension systems, the damping ratio of the suspension system and the suspension mass, then, the acceleration amplitude and frequency characteristics of to the center position of the vehicle body has been analyzed. Finally, the suspension equipment is regarded as the dynamic vibration absorber. The optimization of the suspension parame -ters by JACQUOT dynamic vibration absorber parameter optimization theory shows that the suspension parameters of the suspension equipment can effectively suppress the elastic vibration of the vehicle body.

关 键 词：吊挂设备 功率谱密度 幅频特性 DVA 

分 类 号：U270.11[机械工程—车辆工程]