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Random vibration of compliant wallThe paper is concerned with the realistic case of two-dimensional random motion of a membrane with bending stiffness supported on a viscoelastic spring substrate and on an elastic base plate under both subsonic and supersonic boundary layer turbulence. The cross-power spectral density of surface displacements is solved in terms of design variables of the compliant wall - such as the dimensions and material properties of the membrane (Mylar), substrate (PVC foam), and panel (aluminum) - so that a sensitivity analysis can be made to examine the influence of each design variable on the surface response statistics. Three numerical examples typical of compliant wall design are worked out and their response statistics in relation to wave drag and roughness drag are assessed. The results can serve as a guideline for experimental investigation of the drag reduction concept through the use of a compliant wall.
Document ID
19770031722
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Yang, J.-N.
(George Washington University Washington, D.C., United States)
Heller, R. A.
(Virginia Polytechnic Institute and State University Blacksburg, Va., United States)
Date Acquired
August 9, 2013
Publication Date
December 1, 1976
Subject Category
Structural Mechanics
Report/Patent Number
ASCE PREPRINT 2687
Accession Number
77A14574
Funding Number(s)
CONTRACT_GRANT: NAS1-13175
CONTRACT_GRANT: NASA TASK 9
Distribution Limits
Public
Copyright
Other

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