Abstract
This paper deals with the design and validation of the fuzzy logic control for a smart fin of a projectile. The fin is actuated by a cantilevered piezoelectric bimorph that is completely enclosed within the fin. A linear model of the actuator and fin is identified experimentally by exciting the system using a chirp signal. A procedure for designing a GA-based fuzzy logic controller for the fin is presented. The controller is verified using simulation and experimental testing that is conducted in the subsonic wind tunnel at the University of Nevada, Las Vegas (UNLV). Results illustrate that the proposed controller can track the desired fin angle control under various operating conditions.
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