压电变摩擦阻尼器对结构地震反应的自协调模糊控制  

Buildings Self-Tuning Fuzzy Control with Piezoelectric Friction Dampers

作　　者：张永兵[1] 李双蓓[1] 秦荣[1] 刘光焰[1] 

机构地区：[1]广西大学土木建筑工程学院,南宁530004

出　　处：《桂林工学院学报》2008年第3期330-334,共5页Journal of Guilin University of Technology

基　　金：国家自然科学基金资助项目(19872020);广西研究生教育创新计划资助项目(2006105930814D05;2008105930814D03)

摘　　要：为减轻结构的地震反应,制作了一款新型的压电变摩擦阻尼器,并设计了自协调模糊控制算法用于结构的振动控制,控制的目标是减轻结构的位移和加速度反应,通过模糊控制算法建立了压电变摩擦阻尼器电压与结构的响应关系,给出了量化因子的计算公式,建立了模糊控制器来考虑地震波对量化因子的影响。算例表明,对于安装有压电变摩擦阻尼器的结构,采用模糊控制算法控制结构振动效果非常好。A new piezoelectric friction damper is designed and fabricated in order to reduce the structural dam- age under earthquakes. The control objective is to minimize both the maximum displacement and acceleration re- sponses of the structure. Interactive relationships between structural responses and input voltage of＇ piezoelectric friction dampers are established by a fuzzy controller. For the absolute value influence of the ground acceleration through fuzzy controller,the equation of scaling factor is established. Numerical simulations for multiple damper cases are given for the efficiency of the intelligent control strategy.

关 键 词：压电变摩擦阻尼器 振动控制 自协调模糊控制 

分 类 号：TU352.11[建筑科学—结构工程]