H_{\infty} Control of Radiated Acoustic Power Modes

Authors: SELİM SİVRİOĞLU

Abstract: This study presents a robust control system design for suppressing the radiated acoustic power emitted from a vibrating planar structure, and spillover effect caused by neglected high frequency modes. A state-space model of a simply supported plate is derived and an output equation is formed based on the one-dimensional PVDF film sensors. An output feedback H_{\infty} control is designed by introducing a multiplicative perturbation which represents unmodeled high frequency dynamics in the control system. The simulation and experimental results are reasonable and show performance improvements.

Keywords: Distributed parameter systems, Acoustic power modes, PVDF sensor, Modal control, H_{\infty} Control

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