悬臂梁振动自适应模煳控制及DSP实现.pdf

第 24 卷第 1期 Vol. 24 No. 1 2007年 1月 MECHAN ICAL ELECTRICAL ENGINEERING MAGAZINE Jan. 2007 悬臂梁振动自适应模糊控制及 DSP实现 1, 2 2 胡红生 , 钱林方 ( 1. , 14001; 2. , 210094) : 以粘贴压电自感作动器的悬臂梁为研究对象, 推 了悬臂梁振动主动控制的压电元传感方 程和作动方程的传递函数, 给出了压电自感作动器位置配置优化方法, 设计了硬件电路以及软件流 程试验结果表明, 利用压电自感作动器和模糊自适应控制器可有效地抑制悬臂梁振动 : 悬臂梁; 振动主动控制; 压电自感作动器 + : TP27 . 4 : A : 1001- 4551( 2007) 1- 0046- 04 Adaptive fuzzy logic control of structural vibration of cantilever beam and DSPbased realization 1, 2 2 HU Hongsheng , Q IAN L infang ( 1. Colleg e of M echanical and E lectr ical Eng ineering, J iax ing University, J iax ing 14001, China; 2. Co llege of M echanical Eng ineer ing, N anj ing Un ivers ity of Science Techno logy, N anj ing 210094, China Abstract: The active vibration control for a cantilever beam bonded w ith p iezoelectric selfsensing actuators w as researched. The transfer functions of sensors and actuatorsw ere derived based the EulerBernoulli beam theory by m odal theory. The optmi ization collocation m ethod w as developed for p lacem ent of selfsensing actuators for control of vib ration of a cantilever beam. The hardware electric circuit and the sofwt are flow control w ere designed. Expermi ent resu lts dem onstrate that the controller is ab le to suppress vibrations quick ly w ith piezoelectric selfsensing actuators. K ey words: cantilever beam; active vibration control; p iezoelectric selfsensing actuator x , x (j = 1, 2N , 0 前 言 j 1 j 2