Simultaneous Design of Mechanism and Control System for Smart Strucutres —Optimization of Piezoelectric Placement and Application to Magnetic Disk Drive—

Fumitake Ohashi; Itsuro Kajiwara; Takahiro Omori; Toshihiro Arisaka

doi:10.11499/sicep.2002.0.248.0

SICE Annual Conference 2002

DOI https://doi.org/10.11499/sicep.2002.0.248.0

Conference information

Host: The Society of Instrument and Control Engineers

Co-host: IEEE/Industiral Electronic Society, IEEE/Robotics and Automation Society, IEEE/Control System Society

Simultaneous Design of Mechanism and Control System for Smart Strucutres

—Optimization of Piezoelectric Placement and Application to Magnetic Disk Drive—

Fumitake Ohashi, Itsuro Kajiwara, Takahiro Omori, Toshihiro Arisaka

Author information

Keywords: Smart Structure, Vibration Control, Optimization, Magnetic Disk Drive

CONFERENCE PROCEEDINGS FREE ACCESS

Pages 248

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Abstract

The placement of the piezoelectric actuator and the H₂ control system in a smart structure are simultaneously optimized by 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 genetic algorithm at the 1st-step and then the dynamic compensator for the output feedback is reconstructurcted at the 2nd-step of the optimization. It is verified by some applications with a plate structure and a magnetic disk drive that an enhanced performacne for the vibration suppression can be achieved by the presented optimal design.

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