摘要
针对压电层合结构振动的LQR控制方法,为了改善结构振动控制的效果,对选用结构振动能量和控制信号能量作为控制目标函数的算法作了初步研究,为LQR方法中的权系数矩阵(矩阵Q和R)的选取提供了一定的理论依据.运用该算法对压电层合梁的振动控制进行了分析计算,结果表明,该方法能达到有效控制结构振动和减小控制能量消耗的目的.
Based on LQR (Linear Quadratic Regulator) control method, to improve the effect of the vibration control for piezoelectric laminated structure, this paper made analysis of the control method for choosing the vibration energy of the structure and the control signal energy as the object function. This method provides a theoretic basis for selecting the appropriate weighting factors (matrixes Q and R). Applying the control method in analyzing vibration control of piezoelectric laminated beam, the numerical results show that it is effective in controlling the vibration and reducing the control energy.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
2003年第12期1942-1946,1952,共6页
Journal of Shanghai Jiaotong University
基金
国家自然科学基金资助项目(10132010)
关键词
压电元件
振动控制
LQR方法
能量准则
Mathematical techniques
Matrix algebra
Piezoelectricity
Sensors
