基于主动悬架的GMA动力学特性分析  

Dynamics Analysis of GMA Based on Active Suspension

作　　者：汤瑞 孟建军[2,3] 刘洋 窦文略 TANG Rui;MENG Jian-jun;LIU Yang;DOU Wen-lue(School of Mechatronics Engineering,Lanzhou Jiaotong University,Lanzhou Gansu 730070,China;Mechatronics T&R Institute,Lanzhou Jiaotong University,Lanzhou Gansu 730070,China;Gansu Provincial Engineering Technology Center for Informatization of Logistics&Transport Equipment,Lanzhou Gansu 730070,China)

机构地区：[1]兰州交通大学机电工程学院,甘肃兰州730070 [2]兰州交通大学机电技术研究所,甘肃兰州730070 [3]甘肃省物流及运输装备信息化工程技术研究中心,甘肃兰州730070

出　　处：《计算机仿真》2025年第3期176-181,共6页Computer Simulation

基　　金：国家自然科学基金(62063013)。

摘　　要：列车运行速度的提升加剧了其振动,严重影响列车的运行安全,超磁致伸缩作动器(GMA)作为列车主动悬架的核心部件,对其进行精确的动力学特性分析有利于优化工作性能。为提高GMA的工作性能,构建出与其等效的动力学模型、推导出系统的传递函数并用Matlab进行仿真,分析其阶跃、频率响应。结果表明,减小系统质量可使系统超调量减少30%,上升时间缩短0.021ms;减小系统刚度、增大系统阻尼可使系统的稳态响应提升3.54%、11.97%,上升时间缩短0.024ms、0.054ms;阻尼系数ζ设置在0.707时会使系统具有最佳动力学性能。研究结果为GMA的性能优化提供参考依据,具有重要的工程应用价值。As the core component of the active train suspension,an accurate dynamics analysis of the giant magnetostrictive actuator can help to optimize the performance of the train.In order to improve the performance of CMA,the equivalent dynamics model is constructed,and the transfer function of the system is derived and simulated in Matlab to analyze the step and frequency response.The results show that reducing the system mass can reduce the system overshoot by 30% and the rise time by 0.021ms;reducing the system stffness and increasing the system damping can improve the steady-state response by 3.54% and 11.97% and reduce the rise time by 0.024ms and 0.054ms;setting the damping coefficient at 0.707 will result in the best dynamic performance of the system.The research results provide a reference basis for the performance optimization of GMA and have important engineering application value.

关 键 词：超磁致伸缩作动器 主动悬架 阶跃响应 频率响应 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]