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Light aircraft sound transmission studies - Noise reduction modelExperimental tests conducted on the fuselage of a single-engine Piper Cherokee light aircraft suggest that the cabin interior noise can be reduced by increasing the transmission loss of the dominant sound transmission paths and/or by increasing the cabin interior sound absorption. The validity of using a simple room equation model to predict the cabin interior sound-pressure level for different fuselage and exterior sound field conditions is also presented. The room equation model is based on the sound power flow balance for the cabin space and utilizes the measured transmitted sound intensity data. The room equation model predictions were considered good enough to be used for preliminary acoustical design studies.
Document ID
19880029244
Document Type
Reprint (Version printed in journal)
Authors
Atwal, Mahabir S. (Paul S. Veneklasen and Associates Santa Monica, CA, United States)
Heitman, Karen E. (NASA Langley Research Center; U.S. Army, Aerostructures Directorate, Hampton VA, United States)
Crocker, Malcolm J. (Auburn University AL, United States)
Date Acquired
August 13, 2013
Publication Date
October 1, 1987
Publication Information
Publication: Acoustical Society of America, Journal
Volume: 82
ISSN: 0001-4966
Subject Category
AIRCRAFT DESIGN, TESTING AND PERFORMANCE
Distribution Limits
Public
Copyright
Other