Active Noise Control: Piezoceramic Actuators in Fluid/Structure Interaction Models

Weifu Fang; H. Thomas Banks; Ralph C. Smith

doi:10.1109/CDC.1991.261588

Active Noise Control: Piezoceramic Actuators in Fluid/Structure Interaction Models

Weifu Fang, H. Thomas Banks, Ralph C. Smith

Wright State University

Research output: Contribution to journal › Article › peer-review

Abstract

A model for a 2D acoustic cavity with a flexible boundary (a beam) controlled via piezoceramic patches producing bending moments in the beam is considered. The associated control problem for this fluid/structure interaction system to reduce the acoustic pressure in the cavity involves unbounded control inputs. Approximation methods in the context of an LQR state space formulation are discussed, and numerical results are presented to demonstrate the effectiveness of this approach in computing feedback controls for noise reduction.

Original language	American English
Journal	[1991] Proceedings of the 30th IEEE Conference on Decision and Control
Volume	3
DOIs	https://doi.org/10.1109/CDC.1991.261588
State	Published - Dec 11 1991

Keywords

Feedback
noise abatement
optimal control
piezoelectric actuators
state-space methods

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10.1109/CDC.1991.261588License: Unspecified

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abstract = " A model for a 2D acoustic cavity with a flexible boundary (a beam) controlled via piezoceramic patches producing bending moments in the beam is considered. The associated control problem for this fluid/structure interaction system to reduce the acoustic pressure in the cavity involves unbounded control inputs. Approximation methods in the context of an LQR state space formulation are discussed, and numerical results are presented to demonstrate the effectiveness of this approach in computing feedback controls for noise reduction.",

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AB - A model for a 2D acoustic cavity with a flexible boundary (a beam) controlled via piezoceramic patches producing bending moments in the beam is considered. The associated control problem for this fluid/structure interaction system to reduce the acoustic pressure in the cavity involves unbounded control inputs. Approximation methods in the context of an LQR state space formulation are discussed, and numerical results are presented to demonstrate the effectiveness of this approach in computing feedback controls for noise reduction.

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KW - optimal control

KW - piezoelectric actuators

KW - state-space methods

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ER -

Active Noise Control: Piezoceramic Actuators in Fluid/Structure Interaction Models

Abstract

Keywords

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