In this paper, an L 1 adaptive control system is designed for the control of a projectile fin. The rotational motion of the fin on the projectile is controlled by a flexible cantilever beam with a piezoelectric active layer, mounted inside the fin. The model includes time-varying disturbance input. In the closed-loop system, the applied voltage accomplishes regulation of the fin angle using the feedback of the fin angle and its derivative. Interestingly, the structure of the controller is independent of the dimension of the model. Simulation results show precise control of the fin angle, despite large parameter uncertainties and disturbance input.


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    Title :

    L1 Adaptive Control of a Projectile Fin by Piezoelectric Actuator


    Contributors:

    Published in:

    Publication date :

    2012-10-19




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown





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