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Sound radiation from an infinite elastic cylinder with dual-wave propagation-intensity distributionsThe radiation of sound from an elastic cylindrical shell filled with fluid and supporting multiwave propagation is studied analytically. Combinations of supersonic and subsonic shell waves are considered. The radiated field is mapped by using acoustic intensity vectors evaluated at various locations. Both time averaged and instantaneous intensity are investigated. The acoustic intensity is seen to vary markedly with axial distance down the cylinder. The effect is shown to be associated with cross terms in the intensity relations, and its magnitude and location to depend upon the relative phase and amplitudes of individual waves. Subsonic shell waves are demonstrated to interact strongly with supersonic shell waves to cause a large modification in the radiated intensity distributions near the shell surface.
Document ID
19880051193
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Fuller, C. R.
(Virginia Polytechnic Institute and State University Blacksburg, United States)
Date Acquired
August 13, 2013
Publication Date
May 8, 1988
Publication Information
Publication: Journal of Sound and Vibration
Volume: 122
ISSN: 0022-460X
Subject Category
Acoustics
Accession Number
88A38420
Funding Number(s)
CONTRACT_GRANT: NAG1-390
Distribution Limits
Public
Copyright
Other

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