The Acoustic Pressure Radiated by a Vibrating Circular Plate within the Fraunhofer Zone of the Three-Wall Corner Region

• Authors: K. Szemela , W. Rdzanek , W. Rdzanek
• Languages of publication: EN

Abstracts

EN

The Neumann boundary value problem has been solved for the region bounded by the three perfect rigid infinite baffles arranged perpendicularly to one another. The harmonically vibrating clamped circular plate embedded in one of the baffles is the sound source. It has been assumed that the amplitude of the plate's transverse vibrations is small to use the linear Kelvin-Voigt theory. The Green function has been applied to obtain the asymptotic formulae describing the distribution of the acoustic pressure within the Fraunhofer zone. The analysis of sound radiation has been performed for some selected surface excitations and for some different plate's locations. The acoustic pressure distribution has been examined including the acoustic attenuation and the internal attenuation of the plate's material.

Keywords

EN

43.20.Ks; 43.20.Rz; 43.40.+s; 43.20.-f; 43.20.+g

Discipline

• 43.20.+g: General linear acoustics
• 43.40.+s: Structural acoustics and vibration

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2012
• Volume: 121
• Issue: 1A
• Pages: A-100-A-109

Dates

published

2012-01

Contributors

author

K. Szemela

• Department of Acoustics, Institute of Physics, University of Rzeszów, T. Rejtana 16A, 35-310 Rzeszów, Poland

author

W. Rdzanek

• Department of Acoustics, Institute of Physics, University of Rzeszów, T. Rejtana 16A, 35-310 Rzeszów, Poland

author

W. Rdzanek

• Department of Acoustics, Institute of Physics, University of Rzeszów, T. Rejtana 16A, 35-310 Rzeszów, Poland

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Identifiers

DOI

10.12693/APhysPolA.121.A-100