Fuzzy sliding mode control based on optimal fuzzy reasoning and its application on simulator turntable

For flight motion simulator servo system, this paper presents a kind of fuzzy sliding mode controller based on optimal fuzzy reasoning according to sliding mode control and fuzzy control theory. Sliding mode controller (SMC) is a special nonlinear control strategy, which has strong robustness against parameter variations and external disturbances, but the chattering produced by sliding mode control limits its application to the practical system. In this paper, by using fuzzy control technology, the chattering can be effectively alleviated. At the same time, the optimal fuzzy reasoning is adopted in the fuzzy control. This fuzzy reasoning method contains optimal and feedback thinking. It can make reasoning process more reasonable and effective according to different index. Simulation and real system experiment results confirm the effectiveness of the proposed control method.