Approximation Methods for Control of Structural Acoustic Models With Piezoceramic Actuators

Document Type

Article

Publication Date

1-1-1993

Abstract

The active control of acoustic pressure in a 2-D cavity with a flexible boundary (a beam) is considered. Specifically, this control is implemented via piezoceramic patches on the beam which produce pure bending moments. The incorporation of the feedback control in this manner leads to a system with an unbounded input term. Approximation methods in the context of an LQR state space formulation are discussed and numerical results demonstrating the effectiveness of this approach in computing feedback controls for noise reduction are presented.

DOI

10.1177/1045389X9300400113

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