With the 4 degree freedom half vehicle model, dynamic optimal design method of semi active control in automobile suspension is investigated.

建立了具有4自由度的半汽车模型，研究了汽车悬架系统半主动控制的动态优化方法。

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In this paper, the control effects of three kinds of measures, including active, passive and semi-active control, for structural seismic control are compared and analyzed.

本文对结构抗震控制的主动控制、被动控制和半主动控制等三类控制措施的控制效果进行了比较与分析。

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The influence of control force amplitude of magnetorheological(MR) damper on semi-active control effects is discussed.

研究了磁流变（MR）阻尼器控制力幅值对结构半主动控制效果的影响。

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