摘要
为了改善农用车、工程车等车辆座椅的减振性能,以电磁作动器为执行器,建立人体座椅—车辆两自由度的主动座椅悬架系统模型。通过对该系统的动力学模型进行线性化处理,并应用二次型最优控制理论,选取合适的加权系数,实现系统的最优控制。在Matlab/Simulink中以白噪声路面激励为系统输入,对主动控制和被动控制的座椅悬架系统仿真分析。结果表明:在不同的激励条件下,基于电磁作动器的主动座椅悬架系统减振效果显著,大幅降低了驾驶员所承受垂直振动加速度,提高了车辆的乘坐舒适性和操纵稳定性。
In order to improve the seat anti-vibration effect of agricultural vehicles and engineering vehicles, a human body and seat-vehicle with 2-DOF model of active seat suspension system is constructed by using elec- tromagnetic actuator as a actuator. By linearizing the dynamic model of the system and applying the quadratic optimal control theory, the optimal control of the system can be realized by selecting the appropriate weighting coefficient. In Matlab/Simulink, the white noise of road surface is used as input model, the seat suspension systems of active control and passive control are simulated and analyzed. The results show that under the condi- tions of different incentive, the system of active seat suspension based on the electromagnetic actuator has remarkable anti-vibration effect, and it can effectively reduce the vertical vibration acceleration of the driver and improve the ride comfort and steering stability of the vehicle.
作者
王云涛
闫伟
王超营
WANG Yun-tao;YAN Wei;WANG Chao-ying(College of Mechanical Engineering,Liaoning Technical University,Fuxin 123000,China;College of Aerospace and Civil Engineering,Harbin Engineering University,Harbin 150001,China)
出处
《测控技术》
CSCD
2018年第11期134-137,143,共5页
Measurement & Control Technology
关键词
主动座椅悬架
电磁作动器
线性化
最优控制
active seat suspension
electromagnetic actuator
linearization
optimal control
