CAJ | 학술논문

以配置两对光致伸缩驱动器的简支板为控制对象，提出了最优控制与模糊控制相结合的最优模糊主动控制算法。考虑到光致伸缩驱动器的非线性驱动特性，首先由最优控制获得光电层合简支板多模态振动的期望控制量，再通过模糊控制器使光致伸缩驱动器光致应变逼近该控制量，从而实现对简支板的多模态振动控制。在最优模糊控制器设计过程中，模糊控制的设计与最优控制设计是相互独立的。仿真结果表明，最优模糊控制能够有效实现光电层合简支板的多模态振动抑制，控制效果明显优于直接最优状态反馈控制。
이배치량대광치신축구동기적간지판위공제대상，제출료최우공제여모호공제상결합적최우모호주동공제산법。고필도광치신축구동기적비선성구동특성，수선유최우공제획득광전층합간지판다모태진동적기망공제량，재통과모호공제기사광치신축구동기광치응변핍근해공제량，종이실현대간지판적다모태진동공제。재최우모호공제기설계과정중，모호공제적설계여최우공제설계시상호독립적。방진결과표명，최우모호공제능구유효실현광전층합간지판적다모태진동억제，공제효과명현우우직접최우상태반궤공제。
Here,a simply supported plate laminated with two pairs of photostrictive actuators was taken as a controlled object,an optimal fuzzy active vibration control algorithm was proposed on the basis of the combination of optimal control and fuzzy one.Considering the nonlinear driving characteristics of photostrictive actuators,the expectation control for suppressing multi-modal vibration of the photo-electric laminated simply supported plate was firstly obtained through the optimal control.Then,the fuzzy control was used to make the strains induced by photostrictive actuators approach the expectation control.Thus,the multi-modal vibration control of the simply supported plate was realized.In the design process of optimal fuzzy controllers,the design of fuzzy control was independent on the design of optimal control.The simulation results demonstrated that the proposed control method can effectively realize the multi-modal vibration control of the photo-electric laminated simply supported plate,and the control effect of the optimal fuzzy control is better than that of the optimal state feedback control.