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Modal response and noise transmission of composite panelsNoise transmission through flat, angular, fiber-reinforced composite panels is investigated experimentally and analytically. A modal decomposition technique was used to obtain solutions to the governing differential equation of motion. Experimental modal analysis was performed in order to confirm the theoretical results. The test specimens were cross-ply and angle-ply composite panels made of various concentrations of fiberglass, graphite, or aramid fibers embedded in epoxy resion. The experimental results showed good agreement with the theoretical calculations. Graphs of the transmission loss characteristics of the different composite panels are provided.
Document ID
19850048240
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Grosveld, F. W. (Bionetics Corp. Hampton, VA, United States)
Metcalf, V. L. (U.S. Army, Research and Technology Laboratories, Hampton VA, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1985
Subject Category
Structural Mechanics
Report/Patent Number
AIAA PAPER 85-0789
Meeting Information
Meeting: Structures, Structural Dynamics, and Materials Conference
Location: Orlando, FL
Start Date: April 15, 1985
End Date: April 17, 1985
Accession Number
85A30391
Funding Number(s)
CONTRACT_GRANT: NAS1-16978
Distribution Limits
Public
Copyright
Other

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