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：
10.1177/104538903033283
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发表时间：
2003-03-01
影响因子：
2.7
通讯作者：
Wang, DH
中科院分区：
文献类型：
--
作者：
Liao, WH;Wang, DH
本文旨在证明利用磁流变阻尼器改善轨道车辆半主动二次悬架系统平顺性的可行性。提出了一种九自由度铁道车辆模型，该模型包括一个车体、两辆货车和四个轮对，以应对车体和货车的垂直、俯仰和侧倾运动。建立了含磁流变阻尼器的轨道车辆悬架系统的控制方程。为了说明可控磁流变阻尼器在轨道车辆悬架系统中的可行性和有效性，采用基于加速度反馈的LQG控制律作为系统控制器，利用卡尔曼估计器根据可测加速度估计状态变量。为了使磁流变阻尼器跟踪最优阻尼力，提出了一种磁流变阻尼器控制器，用于向磁流变阻尼器的电流驱动器控制电压。研究了带MR减震器的半主动二次悬架列车车辆在随机和周期性轨道不规则情况下的车身加速度响应。该半主动控制系统还与使用粘性阻尼器（不含磁流变阻尼器）的传统被动悬架系统以及集成磁流变阻尼器的被动开启和被动关闭模式的二次悬架系统进行了比较。仿真结果表明，采用半主动磁流变阻尼器对列车悬架系统进行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.