多层结构基于静态输出反馈的主动控制试验研究  

EXPERIMENTS ON ACTIVE CONTROL OF MULTI-STORY STRUCTURE USING STATIC OUTPUT FEEDBACK

作　　者：张微敬[1] 欧进萍[2] 

机构地区：[1]北京工业大学建工学院,北京100022 [2]大连理工大学,大连116024

出　　处：《振动与冲击》2007年第8期158-161,共4页Journal of Vibration and Shock

基　　金：国家自然科学基金重点资助项目(50038010);北京工业大学博士启动基金资助项目(52004012200404)

摘　　要：相比全状态反馈和动态输出反馈,静态输出反馈由于所用传感器少、可以有效减少时滞而具有良好的应用前景。为进一步验证静态输出反馈算法的有效性和鲁棒性,进行了1:4五层模型结构基于H∞静态输出反馈的主动控制试验研究,并与最优控制的试验结果进行了比较。试验中仅用关键位置的少数传感器信号作为反馈输入,取得了较好的控制效果。此外,在结构模型参数发生变化时,静态输出反馈算法展现了比最优控制算法更好的鲁棒性。本文研究成果为结构主动控制的工程应用提供了一定的参考。Compared with state feedback and dynamic output feedback controllers, static output feedback control methods are quite promising for applications to the control of civil engineering structures. Based on the simulation results, shaking table test of active structural control was conducted, using the measured output from a limited number of sensors installed at strategic locations of the structure. The tested structure was a five-stories one-fourth scaled building model, equipped with an AMD control system. Two tested cases were given under various earthquake records and the results indicate that the performance of the static output feedback controllers is very remarkable. In addition, for the same model with parametric uncertainties, the experimental results show that the static output feedback controllers are much robuster against possible deviations from the nominal model than the LQR controller. The study can provide a necessary foundation for practical implementations of control systems to civil engineering structures.

关 键 词：H∞静态输出反馈 结构主动控制 振动台试验 参数不确定 

分 类 号：TU352.1[建筑科学—结构工程]