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1982•Proceedings of the Royal Society of London A Mathematical and Physical SciencesRequires access

The acoustic radiation efficiency of rectangular panels

Francis Godfrey Leppington, E. G. Broadbent, K. H. Heron

Open publisher page 188 citations

Abstract

Abstract The acoustic radiation efficiency σ of a rectangular panel that undergoes time-harmonic transverse oscillations with sinusoidal mode shapes is estimated when the acoustic wavenumber and the plate wavenumber components are large. The results confirm that σ has different asymptotic forms in different regions of plate wavenumber space. Results are given for each region, together with transition formulae near the various connecting boundaries. Some earlier results are confirmed, modified and extended.

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What this paper is about

Abstract The acoustic radiation efficiency σ of a rectangular panel that undergoes time-harmonic transverse oscillations with sinusoidal mode shapes is estimated when the acoustic wavenumber and the plate wavenumber components are large. The results confirm that σ has different asymptotic forms in different regions of plate wavenumber space. Results are given for each region, together with transition formulae near the various connecting boundaries. Some earlier results are confirmed, modified and extended.

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Available abstract

Abstract The acoustic radiation efficiency σ of a rectangular panel that undergoes time-harmonic transverse oscillations with sinusoidal mode shapes is estimated when the acoustic wavenumber and the plate wavenumber components are large. The results confirm that σ has different asymptotic forms in different regions of plate wavenumber space. Results are given for each region, together with transition formulae near the various connecting boundaries. Some earlier results are confirmed, modified and extended.

Key concepts: Wavenumber, Acoustic radiation, Radiation, Transverse plane, Acoustics, Harmonic, Physics, Mode (computer interface)

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