Structural Acoustic Optimization of a Composite Cylindrical Shell Using FEM/BEM

[+] Author and Article Information
W. M. Johnson, K. A. Cunefare

G. W. W. School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405

J. Vib. Acoust 124(3), 410-413 (Jun 12, 2002) (4 pages) doi:10.1115/1.1473829 History: Received November 01, 2000; Online June 12, 2002
Copyright © 2002 by ASME
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BEM of shell with external monopole sources
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Interior boundary element mesh and data recovery meshes
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Finite element model of (2,1) structural mode at 147.55 Hz
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Design history of normalized average SPL and objective
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Design history of ply angles
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(a) Pre-optimized interior sound pressure level (dB). (b) Post-optimized interior sound pressure level (dB).
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(a) Pre-optimized interior sound pressure level (dB). (b) Post-optimized interior sound pressure level (dB).



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