【摘要】 首先采用四节点板元和虚功原理,推导出智能板结构的运动方程,然后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。文中方法的有效性,通过数值仿真来验证。从控制仿真结果可以看出,文中的方法能有效地控制板结构的振动。更多还原

【Abstract】 The finite element model of a smart plate is developed on Hamilton’s principle in this paper.Subsequently an Independent Modal Space Control technique based on Linear Quadratic Regulator(LQR)control methodology is adopted for the vibration suppression of smart structures and validated by the numerical examples of smart plates with piezoelectric patches. From the results,it is concluded that the presented method can suppress vibration effectively.更多还原