Semiactive Vibration Control of Train Suspension Systems via Magnetorheological Dampers
Semiactive Vibration Control of Train Suspension Systems via Magnetorheological Dampers
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DOI：
10.1177/1045389x03014003004
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发表时间：
2003-03
影响因子：
2.7
通讯作者：
W H Liao;D. H. Wang
中科院分区：
文献类型：
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作者：
W H Liao;D. H. Wang
本文旨在展示使用磁流变（MR）阻尼器的半主动二系悬架系统提高铁路车辆乘坐质量的可行性。提出了一种九自由度铁路车辆模型，包括一个车体、两个转向架和四个轮对，以应对车体和转向架的垂直、俯仰和侧倾运动。建立了磁流变阻尼器集成的铁路车辆悬架系统的控制方程。为了说明铁路车辆悬架系统中受控磁流变阻尼器的可行性和有效性，采用使用加速度反馈的LQG控制律作为系统控制器，其中状态变量是通过卡尔曼估计器根据可测量的加速度来估计的。为了使磁流变阻尼器跟踪最佳阻尼力，提出了一种阻尼控制器来控制磁流变阻尼器电流驱动器的电压。评估了磁流变阻尼器集成半主动二系悬架系统列车车体在随机和周期性轨道不平顺下的加速度响应。该半主动控制系统还与使用粘性阻尼器但不带磁流变阻尼器的传统被动悬架系统，以及在被动打开和被动关闭模式下集成磁流变阻尼器的二系悬架系统进行了比较。仿真结果表明半主动控制磁流变阻尼器对列车悬架系统的振动控制是可行和有效的。
This paper is aimed to show the feasibility for improving the ride quality of railway vehicles with semiactive secondary suspension systems using magnetorheological (MR) dampers. A nine degree-of-freedom railway vehicle model, which includes a car body, two trucks and four wheelsets, is proposed to cope with vertical, pitch and roll motions of the car body and trucks. The governing equations of the railway vehicle suspension systems integrated with MR dampers are developed. To illustrate the feasibility and effectiveness of the controlled MR dampers on railway vehicle suspension systems, the LQG control law using the acceleration feedback is adopted as the system controller, in which the state variables are estimated from the measurable accelerations with the Kalman estimator. In order to make the MR dampers track the optimal damping forces, a damper controller to command the voltage to the current drivers for the MR dampers is proposed. The acceleration responses of the car body of the train vehicle with semiactive secondary suspension system integrated with MR dampers are evaluated under random and periodical track irregularities. This semiactive controlled system is also compared to the conventional passive suspension system using viscous dampers without MR dampers, and the secondary suspension system integrated with MR dampers in passive on and passive off modes. The simulation results show that the vibration control of the train suspension system with semiactive controlled MR dampers is feasible and effective.