【作者】 刘相秋； 王威远； 邹振祝；

【Author】 LIU Xiang-qiu WANG Wei-yuan ZOU Zhen-zhu (School of Astronautics,Harbin Institute of Technology,Harbin 150001,China)

【机构】 哈尔滨工业大学航天学院；

【摘要】 结合有限元方法,研究了直接负速度反馈和基于LQR(二次线性最优控制)的独立模态空间主动控制方法来控制结构的振动;采用PATRAN与MATLAB联合仿真的方法对这两种控制方法进行主动控制数值仿真;采用MATLAB的xPC实时控制方法,进行了主动板的振动控制实验,结果表明,采用压电结构和上述控制方法进行振动主动控制有明显效果。更多还原

【Abstract】 Negative Velocity Feedback Control and Modal Space Control technique which was based on Linear Quadratic Regulator(LQR) control was studied combined with Finite Element Method respectively.Numerical simulation using PATRAN/ NASTRAN and MATLAB was conducted to control the vibration of structures. Vibration control experiment of a plate was carried out with MATLAB/xPC Real-Time Workshop.Results showed that the control method by using piezoelectric material had good effect.更多还原