摘要
选用以结构振动能量和控制信号能量作为控制目标函数的LQR算法,在单对压电元件进行梁振动主动控制的基础上,使用多对压电元件进行主动控制.运用该算法对压电层合梁的振动控制进行了分析计算.数值算例表明该方法能够有效地控制多阶模态并减小控制能量的消耗.由此,进一步验证了以结构振动能量和控制信号能量作为控制目标函数的LQR算法的正确性.
The LQR (Linear Quadratic Regulator) control method is used to analyze the vibration control of a piezoelectric laminated beam. The active control problem by multiple patches piezoelectric elements is considered. The structure vibration energy and the control signal energy are taken as the object function. Numerical results show that the control method can effectively control the high model and reduce the control signal energy. These results proved the validity of the LQR method.
出处
《固体力学学报》
CAS
CSCD
北大核心
2004年第4期423-429,共7页
Chinese Journal of Solid Mechanics
基金
国家自然科学基金(10132010)资助.
