针对提高特种车辆行驶舒适性对减小由路面引起的特种车辆振动的急需,建立特种车辆天棚阻尼半主动控制策略.基于多体系统传递矩阵法,分别建立1/2特种车辆被动控制和半主动控制悬架系统动力学模型;采用天棚阻尼控制策略建立基于簧载质量速度的半主动悬架负反馈控制方法,分别在频域与时域内进行响应特性分析,并与振动被动控制方法进行计算比较.结果表明:该方法可有效改善特种车辆振动情况,对特种车辆车体质心加速度、动行程和车轮质心动行程的振动控制十分有效.%In order to improving the riding comfort and reducing the vibration of the special vehicle caused by the uneven road surface, the ceiling damping semi-active control strategy is established. The dynamical models of passive control and semi-active control suspension system of the 1/2 special vehicle are established, based on the transfer matrix method for multi body system. Based on the speed of sprung mass, the negative feedback control method of semi-active suspension is established by using the ceiling damping control strategy. By comparing the computational results got by the semi-active vibration control method and the passive vibration control method, it can be seen that the semi-active vibration control method can effectively reduce the vibration of special vehicle, and is very valid for controlling the vibration of the vehicle centroid acceleration, the vehicle centroid die stroke, and wheel centroid die stroke.
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