Simultaneous design of mechanism and control system for smart structures (optimization of piezoelectric placement and application to magnetic disk drive)

Author

Ohashi, F. ; Kajiwara, I. ; Omori, T. ; Arisaka, T.

Author_Institution

Tokyo Inst. of Technol., Japan

Volume

2

fYear

2002

fDate

5-7 Aug. 2002

Firstpage

1117

Abstract

The placement of the piezoelectric actuator and H₂ control system in a smart structure are simultaneously optimized by the genetic algorithm to achieve an enhanced vibration control performance. Efficient optimization algorithm based on a two-step procedure is employed in the simultaneous optimization. in which the optimal piezoelectric placement and state feedback controller are obtained by the genetic algorithm at the 1st-step and then the dynamic compensator for the output feedback is reconstructed at the 2nd-step of the optimization. It is verified by sonic applications with a plate structure and a magnetic disk drive that an enhanced performance for the vibration suppression can be achieved by the optimal design presented.

Keywords

disc drives; finite element analysis; genetic algorithms; intelligent structures; optimal control; piezoelectric actuators; reduced order systems; state feedback; vibration control; H₂ control; dynamic compensation; finite element analysis; genetic algorithm; magnetic disk drive; optimal control; optimization; piezoelectric actuator; reduced-order system; smart structure; state feedback; vibration control; Control systems; Design optimization; Disk drives; Genetic algorithms; Intelligent structures; Optimal control; Output feedback; Piezoelectric actuators; State feedback; Vibration control;

fLanguage

English

Publisher

ieee

Conference_Titel

SICE 2002. Proceedings of the 41st SICE Annual Conference

Print_ISBN

0-7803-7631-5

Type

conf

DOI

10.1109/SICE.2002.1195338

Filename

1195338