Open Access
ARTICLE
Modified Approach for Optimum Position and Sizing of Piezoelectric Actuator for Steering of Parabolic Antenna
Vijay Kumar Gupta1
1 PDPM Indian Institute of Information Technology, Design & Manufacturing Jabalpur, India,
482005
Structural Longevity 2011, 6(2), 65-75. https://doi.org/10.3970/sl.2011.006.065
Abstract
Various applications of piezoelectric actuators have been explored
over the years. One such application is use of piezoelectric actuators for shape
control of structures. In this paper, steering of parabolic antenna by deforming
the antenna surface using piezoelectric actuators has been explored. Optimization
based on Genetic Algorithm is carried out to find out optimum location, length and
applied electric field to the piezoelectric actuators to achieve desired steering of
antenna. Constraints are included in the objective function using penalty approach.
Shell finite element model is used to determine deformations induced by the actuators. As the wavelength is sufficiently smaller than the aperture dimension, far field
radiations are calculated using geometric optics. It is observed that new optimization approach gives better result.
Keywords
Cite This Article
Gupta, V. K. (2011). Modified Approach for Optimum Position and Sizing of Piezoelectric Actuator for Steering of Parabolic Antenna.
Structural Longevity, 6(2), 65–75.