Multi-modal Optimal Fuzzy Active Vibration Control of Photo-electric Laminated Simply Supported Plate
HE Rong-bo1,2, ZHENG Shi Jie1
1.State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics And Astronautics, Nanjing 210016;
2. Anhui University of Technology, School of Electrical and Information Engineering, Maanshan 243002
In this paper, taking a simply supported plate laminated with two pairs of photostrictive actuators as the controlled object, an optimal fuzzy active control algorithm is proposed on the basis of the combination of optimal control and fuzzy one. In view of the nonlinear driving characteristics of photostrictive actuators, the desired control for suppressing multi-modal vibration of photo-electric laminated simply supported plate is firstly obtained through optimal control. And then the fuzzy control is used to approach the desired control induced by photostrictive actuators. Thus, the multi-modal vibration control of simply supported plate is realized. In the design process of optimal fuzzy controller, the design of fuzzy control is independent of optimal control. The simulation results demonstrate that the proposed control method could effectively realize multi-modal vibration control of photo-electric laminated simply supported plate, and the control effect of optimal fuzzy control is better than that of optimal state feedback control.
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