基于磁流变阻尼器的铁道车辆结构振动半主动控制  

SEMI-ACTIVE CONTROL OF RAILWAY VEHICLE STRUCTURE VIBRATION BASED ON MR DAMPER

作　　者：陆正刚[1] 胡用生[1] 

机构地区：[1]同济大学铁道与城市轨道交通研究院,上海200331

出　　处：《机械工程学报》2006年第8期95-100,共6页Journal of Mechanical Engineering

摘　　要：在建立铁道车辆柔刚体系统垂直动力学模型的基础上,应用独立模态空间控制理论和最优控制理论,对影响车辆垂直运行平稳性的车体低阶弯曲结构振动和浮沉、点头等刚体振动进行控制。根据铁道车辆悬挂系统的特点,提出采用磁流变阻尼器作为作动器,以降低车体垂直加速度进而改善运行平稳性为目标的半主动控制策略,来实现在性能改善和能量消耗之间的协调,在ADAMS和Matlab／Simulink^(?)环境下,应用机械系统和控制系统联合仿真技术,对采用半主动控制策略的整车性能进行仿真研究。仿真结果显示该半主动控制策略能较好地抑制车体第一阶弯曲模态的结构振动,并可改善车辆运行平稳性,针对铁道车辆系统的磁流变阻尼器在设计上是可行的。Based on the flex-rigid multi-body system dynamics model of railway vehicle, the first vertical bend structure modal and vertical and pitch rigid vibration of carbody which reduce the ride quality are controlled using independent modal space control （IMSC） and optimum control theory. A semi-active control strategy using MR damper is proposed to decease the vibration acceleration of the vehicle on the floor, to improve the ride quality of railway vehicle, and to save the energy consumed. The co-simulation of the full vehicle mechanical and semi-active control system is finished in ADAMS and Matlab//Simulink environment. The simulation results show that this semi-active control method according to shyhook damper control model is effective, the first bend structure modal of carbody is restrained and the vehicle running behaviour is improved. This semi-active MR damper used in railway vehicle can be designed.

关 键 词：铁道车辆 柔刚体系统 结构振动 独立模态空间控制 半主动控制 磁流变阻尼器 

分 类 号：U271.91[机械工程—车辆工程] TP273[交通运输工程—载运工具运用工程]