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A Variational Formulation for the Finite Element Analysis of Sound Wave Propagation in a Spherical ShellDevelopment of design tools to furnish optimal acoustic environments for lightweight aircraft demands the ability to simulate the acoustic system on a workstation. In order to form an effective mathematical model of the phenomena at hand, we have begun by studying the propagation of acoustic waves inside closed spherical shells. Using a fully-coupled fluid-structure interaction model based upon variational principles, we have written a finite element analysis program and are in the process of examining several test cases. Future investigations are planned to increase model accuracy by incorporating non-linear and viscous effects.
Document ID
19970003087
Acquisition Source
Langley Research Center
Document Type
Conference Paper
Authors
Lebiedzik, Catherine (Virginia Univ. Hampton, VA United States)
Date Acquired
August 17, 2013
Publication Date
January 1, 1995
Publication Information
Publication: Technical Reports: Langley Aerospace Research Summer Scholars
Volume: Part 1
Subject Category
Acoustics
Accession Number
97N11852
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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