This brief paper treats the question of adaptive control of a projectile fin using a piezoelectric actuator. The hollow projectile fin is rigid, within which a flexible cantilever beam with a piezoelectric active layer is mounted. The model of the fin-beam system includes the aerodynamic moment, which is a function of angle of attack of the projectile. The rotation angle of the fin is controlled by deforming the flexible beam, which is hinged at the tip of the rigid fin. An adaptive servoregulator is designed for the control of the fin angle using the fin angle and its derivative for feedback. Interestingly, the knowledge of the dimension and parameters of the system is not essenstial for the synthesis of the control law. In the closed-loop system, the fin angle asymptotically converges to the desired set point and the elastic modes converge to their equilibrium values. Computer simulation and laboratory test results are presented to show the performance of the controller.
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e-mail: sahaj@ee.unlv.edu
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January 2007
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Adaptive Servoregulation of a Projectile Fin Using Piezoelectric Actuator
Smitha Mani,
Smitha Mani
Department of Electrical & Computer Engineering,
University of Nevada
, Las Vegas, NV 89154-4026
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Sahjendra N. Singh,
Sahjendra N. Singh
Department of Electrical & Computer Engineering,
e-mail: sahaj@ee.unlv.edu
University of Nevada
, Las Vegas, NV 89154-4026
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Surya Kiran Parimi,
Surya Kiran Parimi
Department of Mechanical Engineering,
University of Nevada
, Las Vegas, NV 89154-4026
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Woosoon Yim
Woosoon Yim
Department of Mechanical Engineering,
University of Nevada
, Las Vegas, NV 89154-4026
Search for other works by this author on:
Smitha Mani
Department of Electrical & Computer Engineering,
University of Nevada
, Las Vegas, NV 89154-4026
Sahjendra N. Singh
Department of Electrical & Computer Engineering,
University of Nevada
, Las Vegas, NV 89154-4026e-mail: sahaj@ee.unlv.edu
Surya Kiran Parimi
Department of Mechanical Engineering,
University of Nevada
, Las Vegas, NV 89154-4026
Woosoon Yim
Department of Mechanical Engineering,
University of Nevada
, Las Vegas, NV 89154-4026J. Dyn. Sys., Meas., Control. Jan 2007, 129(1): 100-104 (5 pages)
Published Online: March 7, 2006
Article history
Received:
June 8, 2005
Revised:
March 7, 2006
Citation
Mani, S., Singh, S. N., Parimi, S. K., and Yim, W. (March 7, 2006). "Adaptive Servoregulation of a Projectile Fin Using Piezoelectric Actuator." ASME. J. Dyn. Sys., Meas., Control. January 2007; 129(1): 100–104. https://doi.org/10.1115/1.2397159
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