压电片位置和大小对板振动控制的影响  

Effects of the size and position of the piezoelectric flat on the vibration control of plates

作　　者：吴磊[1] 王建国[2] 

机构地区：[1]安庆师范学院物理系,安徽安庆246011 [2]合肥工业大学土木建筑工程学院,安徽合肥230009

出　　处：《合肥工业大学学报（自然科学版）》2007年第8期1024-1027,共4页Journal of Hefei University of Technology：Natural Science

基　　金：安徽省自然科学基金资助项目(050440504);安徽省教育厅自然科学基金资助项目(2006kj2968)

摘　　要：文章基于现代控制理论选用结构控制能量和控制信号能量作为控制目标函数的LQR法,利用单对压电片对各种支撑条件下的板进行结构振动的主动控制;讨论了压电片位置和大小对控制效果的影响;提出了关于压电片位置和大小优化的基本观点。The linear quadratic regulator（LQR） method, in which the vibration energy of the structure and the energy of the control signal are considered in the objective function, is adopted to control the vibration of the plates with various boundary conditions by using piezoelectric material. The effects of the size and position of the piezoelectric flat on the vibration control are studied by simulation experiment. Several basic views about optimizing the size and position of the piezoelectric flat are given.

关 键 词：压电智能板 振动控制 LQR法 能量准则 

分 类 号：O341[理学—固体力学]