Approximation Methods for Control of Acoustics/Structure Models with Piezoceramic Actuators
INSTITUTE FOR COMPUTER APPLICATIONS IN SCIENCE AND ENGINEERING HAMPTON VA
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The active control of acoustic pressure in a two dimensional 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 a Linear Quadratic Regulator state space formulation are discussed and numerical results demonstrating the effectiveness of this approach in computing feedback controls for noise reduction are presented.
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