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 |