GA-Based Fuzzy Logic Control for a Smart Fin of a Projectile

Document Type

Conference Proceeding


This paper presents the design and testing of a smart fin for a subsonic projectile. The smart fin is activated using a piezoelectric bimorph with a substrate that is completely enclosed within the fin. A linear model of the actuator and fin system is created using the frequency response identification technique within MATLAB System Identification Toolbox. A procedure for designing a GA-based fuzzy logic controller for the fin is presented. Experimental and simulation results show that the proposed controller achieved the fin angle control under different operating conditions.


Bimorphs; Fuzzy logic; Piezoelectric devices; Projectiles; Rockets (Aeronautics) – Fins


Aerospace Engineering | Mechanical Engineering | Navigation, Guidance, Control and Dynamics


Conference held: Las Vegas, Nevada, USA, September 4–7, 2007


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