Comparison of Vibration and Acoustic Pressure Reduction Using Different Types of Piezo actuators
J. Wiciak and R. Trojanowski
AGH University of Science and Technology, Department of Mechanics and Vibroacoustics, Al. A. Mickiewicza 30, 30-059 Krakow, Poland
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This paper presents results of numerical simulations on reduction of sound pressure radiated from a square plate using different types of piezo actuators. For this purpose a FEM model was developed using ANSYS software with said steel plate with a hemisphere of air on one side of the plate. There are two criteria by which the reduction is measured: minimising vibrations of plate area and minimising sound pressure on a half sphere surrounding the plate. Changes in the results for both the radiated sound pressure and plate vibration are discussed.

DOI: 10.12693/APhysPolA.128.A-62
PACS numbers: 43.40.-r, 43.28.Js, 46.40.Ff