Considering the characters of relief type variable damping controller, some factors that affects the control performance were analyzed in the paper.
结合溢流阀式变阻尼控制器的特点，分析了一些因素对控制效果的影响。
MR damper can provide variable damping forces. It is suitable to be used as semi-active controller to reduce seismic response of structures.
MR阻尼器能提供可以调节的阻尼力，适合用作减少结构地震响应的半主动控制器。
Considering the disadvantages of the system, such as strong nonlinearity, low damping, low stiffness and the change of environment, a variable structure controller is designed in the thesis.
针对系统非线性强、阻尼比低、运行条件变化性大等特点，本文提出一种基于变结构控制理论的控制器。
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