Abstract：A method using fuzzy logic based controller to suppress LCO of airfoil with control panel freeplay is studied, in terms of the good performance of the fuzzy logic controller which does not rely on the precise mathematical model of controlled object, is not sensitive to the parameters perturbation and shows good robustness. System state-space function is built in MATLAB/SIMULINK environment. The simulation results show that such controller can suppress non-linear cycle vibration effectively, quickly stabilizes the system and improves system flutter speed.
2012, Vol. 31 
