【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