Active Vibration Suppression Of Thin Cylindrical Shells Laminated With Photostrictive Actuators Via Self-Organizing Fuzzy Sliding Mode Control

In this paper, the vibration suppression of a simply supported thin cylindrical shell laminated with photostrictive actuators is studied. In view of the model uncertainty existing in intelligent structure system, as well as the nonlinear and time-variant characteristics of photostrictive actuators, a self-organizing fuzzy sliding mode control (SOFSMC) method is developed to generate fuzzy control rules in real time during the active vibration suppression. By using this method, the number of fuzzy rule is reduced significantly, and the design of controller is simplified. To illustrate the performance of the proposed controller, the simulation results of SOFSMC are compared with that of traditional fuzzy controller (TFC). The comparison demonstrates that the SOFSMC is easier to realize the implementation procedure and achieves rapider vibration suppression even in the presence of parameter variations and external disturbances.