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Proceedings Paper

Adaptive control of projectile fin angle using piezoelectric beam actuator
Author(s): Woosoon Yim; Sahjendra N. Singh; Mohamed B. Trabia
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Paper Abstract

The objective of this paper is to study the feasibility of using smart material to control the rotation angle of a subsonic projectile fin during flight. The fin produces maneuvering force and moment which are utilized to control the projectile. In this paper a beam model of piezoelectric actuator is used for rotating the projectile fin. The fin, which is assumed to be rigid, is rotated by a cantilever beam-based piezoelectric actuator whose both end are attached to the projectile body and the fin. An analytical model of the beam actuator is obtained by the finite element approach with each element satisfying Euler-Bernoulli's theorem. A feedback linearizing adaptive control system is designed for the trajectory control of the fin angle. The controller consists of an inverse system and a high gain observer. Simulation results are presented which show that fin control is accomplished in spite of uncertainties in the system.

Paper Details

Date Published: 26 July 2004
PDF: 10 pages
Proc. SPIE 5383, Smart Structures and Materials 2004: Modeling, Signal Processing, and Control, (26 July 2004); doi: 10.1117/12.538282
Show Author Affiliations
Woosoon Yim, Univ. of Nevada/Las Vegas (United States)
Sahjendra N. Singh, Univ. of Nevada/Las Vegas (United States)
Mohamed B. Trabia, Univ. of Nevada/Las Vegas (United States)

Published in SPIE Proceedings Vol. 5383:
Smart Structures and Materials 2004: Modeling, Signal Processing, and Control
Ralph C. Smith, Editor(s)

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