H^∞ control of noise in a 3-D structural acoustic system

Author

Banks, H.T. ; Demetriou, M.A. ; Smith, R.C.

Author_Institution

Center for Res. in Sci. Comput., North Carolina State Univ., Raleigh, NC, USA

Volume

4

fYear

1995

fDate

13-15 Dec 1995

Firstpage

3719

Abstract

The performance of a PDE-based control technology for reducing sound pressure levels in structural acoustic systems is numerically investigated in this paper. In such systems, structural vibrations couple with an adjacent acoustic field to produce unwanted noise. The actuators are taken to be piezoceramic patches bonded to the structure. In response to an input voltage, the patches can be used to attenuate vibration levels in a manner which reduces sound pressure levels in the adjacent acoustic field. The performance of an H^∞/minmax compensator is investigated here with numerical simulations presented to demonstrate resulting attenuation levels

Keywords

acoustic variables control; acoustics; active noise control; minimax techniques; optimal control; partial differential equations; piezoceramics; piezoelectric actuators; structural acoustics; 3D structural acoustic system; H^∞ noise control; H^∞/minmax compensator; PDE-based control technology; piezoceramic actuators; piezoceramic patches; sound pressure levels; vibration level attenuation; Acoustic noise; Actuators; Attenuation; Bonding; Control systems; Minimax techniques; Numerical simulation; Piezoelectric materials; Pressure control; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Decision and Control, 1995., Proceedings of the 34th IEEE Conference on

Conference_Location

New Orleans, LA

ISSN

0191-2216

Print_ISBN

0-7803-2685-7

Type

conf

DOI

10.1109/CDC.1995.479171

Filename

479171

H∞ control of noise in a 3-D structural acoustic system

Banks, H.T. ; Demetriou, M.A. ; Smith, R.C.

conf

H^∞ control of noise in a 3-D structural acoustic system