阻尼器是列车减振降噪的关键设备,良好的阻尼器可以显著提高列车乘坐的舒适性.提出了一种基于列车整车阻尼比与磁流变阻尼器出力模型的优化设计方法.将列车模型简化为单自由度系统,使用阻尼比公式计算列车模型垂向减振磁流变阻尼器的最大阻尼力.以最大阻尼力为优化性能约束条件,以使磁流变阻尼器的可调范围最大为目标值,使用Matlab优化工具箱得到磁流变阻尼器的结构参数.以某型列车模型为例,优化设计了用于此模型垂向减振的磁流变阻尼器的参数,证明了方法的可行性.%As an key device of the high speed train,the damper can be used to improve the comfortability for the passangers.To ob-tain the structure parameters of MR damper used for train vertical vibration reduction,An optimum design method based on vehicle damping ratio and design model is proposed.In this paper,the train is simplified as single degree of freedom system,and the vehicle damping ratio is used to calculate the maximum damping force of MR damper. The structure parameters are optimized by Matlab toolbox when the maximum damping force is treated as constraint condition and maximum adjustable extent is treated as optimal ob-ject. The proposed method is employed in the design of MR damper structure of a train model. It shows its feasibility.
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