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本文对磁流变阻尼器的性能及恢复力模型进行了介绍，并对其参数进行了设计，提出了基于现代最优控制理论的半主动控制方法．计算实例分析结果表明，采用磁流变阻尼器对结构进行半主动控制能够有效地减小结构的地震反应．
In this paper, the performance and restoring force model of magnetorheological damper are introduced, and its parameters are designed. A semi-active control method based on modern optimal control theory is proposed. The calculation example shows that the semi-active control of the structure with MR damper can effectively reduce the seismic response of the structure.