基于MRF-04K阻尼器的LQG半主动控制系统

LQG Semi-Active Control System Based on MRF-04K Damper

在MRF-04K阻尼器动力特性试验的基础上提出了一种能够准确描述该阻尼器特性的滞回模型,通过实测曲线与模拟曲线的对比分析表明,该模型能够真实反映阻尼器的滞回特性．建立了基于MRF-04K阻尼器的LQG半主动控制系统,仅需结构加速度响应作为反馈信息,通过对3层模型结构的计算分析表明,该系统能够充分利用阻尼器的性能,实现较好的减震控制效果．

To effectively portray the dynamic behavior based on the testing results of the damper. Comparison of MRF-04K damper, a hysteresis model is proposed of the data between testing and simulated indicates that this model is accurate for a wide range of operating conditions, and is appropriate to use in control system design for civil structures. Linear quadratic Gaussian（LQG） semi-active control system using acceleration feedback control strategy is established, and the simulation results of a three-story frame model structure show that the seismic responses are suppressed effectively by the proposed semi-active control system, and high performance of the damper can be achieved.