A vibration isolation system using active PZT brackets

Author

Falangas, Eric T.

Author_Institution

Aerosp. Corp., El Segundo, CA, USA

Volume

1

fYear

1994

fDate

29 June-1 July 1994

Firstpage

676

Abstract

A new type of active isolation system was designed and tested in The Aerospace Corporation´s Dynamics and Control Center. This isolation system utilizes PZT actuators bonded on S-shaped brackets. The system exhibits very good isolation performance by attenuating external vibrations to amplitudes less than 1/10 of their original values. This disturbance attenuation performance relies on adequate knowledge of the plant´s dynamic characteristics, and therefore, the design depends on a reliable system identification process which was made possible by frequency response analysis using a Hewlett-Packard 3562 analyzer.

Keywords

aerospace control; frequency response; piezoelectric actuators; signal processing equipment; vibration control; Hewlett-Packard 3562 analyzer; PZT; PZT actuators; PbZrO3TiO3; S-shaped brackets; active PZT brackets; attenuating external vibrations; disturbance attenuation performance; frequency response analysis; vibration isolation system; Actuators; Aerodynamics; Aerospace control; Aerospace testing; Attenuation; Bonding; Control systems; Performance analysis; System identification; System testing;

fLanguage

English

Publisher

ieee

Conference_Titel

American Control Conference, 1994

Print_ISBN

0-7803-1783-1

Type

conf

DOI

10.1109/ACC.1994.751825

Filename

751825