Noise transmission from a curved panel into a cylindrical enclosure: analysis of structural acoustic coupling

The Journal of the Acoustical Society of America
J K Henry, R L Clark

Abstract

Much of the research on sound transmission through the aircraft fuselage into the interior of aircraft has considered coupling of the entire cylinder to the acoustic modes of the enclosure. Yet, much of the work on structural acoustic control of sound radiation has focused on reducing sound radiation from individual panels into an acoustic space. Research by the authors seeks to bridge this gap by considering the transmission of sound from individual panels on the fuselage to the interior of the aircraft. As part of this research, an analytical model of a curved panel, with attached piezoelectric actuators, subjected to a static pressure load was previously developed. In the present work, the analytical model is extended to consider the coupling of a curved panel to the interior acoustics of a rigid-walled cylinder. Insight gained from an accurate analytical model of the dynamics of the noise transmission from the curved panels of the fuselage into the cylindrical enclosure of an aircraft is essential to the development of feedback control systems for the control of stochastic inputs, such as turbulent boundary layer excitation. The criteria for maximal structural acoustic coupling between the modes of the curved panel and the ...Continue Reading

References

Sep 18, 1999·The Journal of the Acoustical Society of America·J K Henry, R L Clark

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Citations

Jul 16, 2005·The Journal of the Acoustical Society of America·Peter C HerdicAmr M Baz
Apr 22, 2003·The Journal of the Acoustical Society of America·Jonathan D Kemp, Robert L Clark

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