Abstract
This paper focuses on the design and validation of a fuzzy logic controller for the smart finof a projectile. The hollow fin is actuated by a cantilevered piezoelectric bimorph that iscompletely enclosed within it. A linear model of the actuator and fin is identifiedexperimentally by exciting the system using a chirp signal. A procedure for designing agenetic algorithm (GA)-based fuzzy logic controller for the fin is presented. The controlleris validated using simulation and experimental testing that is conducted in the subsonicwind tunnel at the University of Nevada, Las Vegas (UNLV). Results show that theproposed controller accomplishes the desired fin angle control under various operatingconditions.
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