摘要
将磁流变阻尼器应用于履带车辆的悬挂系统中,研究了磁流变阻尼器在不同电流下的力学特性和耗能特性。建立了履带车辆二自由度车体振动模型,提出了基于线性二次型(LQR)最优控制理论的半主动控制算法。对典型沙土路面激励下履带车辆悬挂系统的半主动控制效果进行了仿真,与被动及开关控制的减振效果进行比较,得出了车体振动加速度、线位移、角加速度和角位移的响应曲线。结果表明,该控制算法对基于磁流变阻尼器的履带车辆悬挂系统有着很好的控制效果。
As a new type vibration absorption device, Magnetorheological (MR) damper was used in semi-active control of tracked vehicle suspension system. The characteristics of MR damper were studied and a 2DOF vehicle structural model was established. In the light of LQR optimal algorithm, a semi-active control strategy was presented. The effects of vibration control with the sand road excitation were simulated. The results show that the displacement and acceleration of tracked vehicle are reduced greatly using the MR damper semi-active control.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2005年第13期1201-1205,共5页
China Mechanical Engineering
基金
国防"十五"预研项目(104010304.3)
