【摘要】 在采用有限元法已建立的压电智能板的动力学方程基础上。应用模态控制理论对压电智能板振动控制的原理和策略进行了研究,采用基于二次线性控制(LQR)的独立模态空间控制法来进行板结构的主动控制,采用负速度反馈控制。通过数值仿真,结果表明:有效地控制结构振动。更多还原

【Abstract】 The base of dynamical equations of piezoelectric intelligent plate were formulated using finite element method.The modal control theory was used to study the strategies of active vibration control problem,subsequently an independent modal space control technique based linear quadratic regulator(LQR) control methodology is adapted for the vibration suppression of intelligent plate.By means of negative velocity feedback control of piezoelectric intelligent plate,induced the vibration of the structure.The effectiveness of this method is validated by the numerical examples of piezoelectric intelligent plate.From the results,it is effective kind of control vibration.更多还原