高速列车抗蛇行减振器动态与静态特性研究  

The dynamic and static feature research on yaw damper of high-speed vehicles

作　　者：朱海燕 徐腾养[2] 池茂儒 Zhu Haiyan;Xo Tengyang;Chi Maoru(School of Mechanotronics ＆ Vehicle Engineer, East China Jiaotong University, Nanchang 330013, Jiangxi, China;State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, China)

机构地区：[1]华东交通大学机电与车辆工程学院,南昌330013 [2]西南交通大学牵引动力国家重点实验室,成都610031

出　　处：《现代制造工程》2018年第6期12-17,共6页Modern Manufacturing Engineering

基　　金：国家自然科学基金项目(51665015);江西省自然科学基金项目(20161BAB206161);牵引动力国家重点实验室开放课题(TPL1611);科技支撑计划项目(2015BAG12B01-17)

摘　　要：分析了新、旧抗蛇行减振器以及抗蛇行减振器在不同安装长度时的动态特性与静态特性。研究结果表明:抗蛇行减振器在服役120万公里后,其静态特性变化不是很明显。其动态阻尼、动态刚度下降相对较明显,动态阻尼下降约为10%,动态刚度下降约为15%。随着幅值的增加,动态阻尼、动态刚度减小率均逐渐减小,动态刚度减小率没有动态阻尼变化明显。抗蛇行减振器不同安装长度时静态特性没有太大变化,动态刚度、动态阻尼随着安装长度的增加总体呈减小趋势,减振器安装长度每增加40 mm,动态刚度平均约减小5%~7%,动态阻尼平均减小约为2%~8%。因为它们静态特性都没有明显变化,故不能再根据Maxwell模型来分析其对车辆动力学性能影响,体现了Maxwell模型局限性。The dynamic and static feature researches on new and old yaw damper and various installation length of yaw damper are accomplished. It could be concluded that there is no obvious change on static feature, but dynamic feature declines significantly with respect to static after it worked 1.2 million kilometers. Dynamic damping reduces about 10 % and dynamic stiffness de- scends 15 % probably. Dynamic damping and stiffness reduction rate decreases gradually as amplitude augments and dynamic damping manifests apparently than stiffness. Static feature also shows unconspicuous variation as dynamic damping and stiffness declines with the improving of installation length. Dynamic damping reduces about 2 % - 8 % and dynamic stiffness descends 5 % -7 % probably while installation length aggrandizes 40mm. Meanwhile, Maxwell model is not reliable to analyze the its effect on vehicle dynamic performance,it embodies the limit of Maxwell model.

关 键 词：新减振器 旧减振器 不同安装长度 动态特性 车辆动力学性能 Maxwell模型 

分 类 号：U270.11[机械工程—车辆工程]