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NASA Glenn's Contributions to Aircraft Engine Noise ResearchThis report reviews all engine noise research conducted at the NASA Glenn Research Center over the past 70 years. This report includes a historical perspective of the Center and the facilities used to conduct the research. Major noise research programs are highlighted to show their impact on industry and on the development of aircraft noise reduction technology. Noise reduction trends are discussed, and future aircraft concepts are presented. Since the 1960s, research results show that the average perceived noise level has been reduced by about 20 decibels (dB). Studies also show that, depending on the size of the airport, the aircraft fleet mix, and the actual growth in air travel, another 15 to 17 dB reduction will be required to achieve NASA's long-term goal of providing technologies to limit objectionable noise to the boundaries of an average airport.
Document ID
20140006523
Document Type
Technical Publication (TP)
Authors
Huff, Dennis L. (NASA Glenn Research Center Cleveland, OH, United States)
Date Acquired
June 2, 2014
Publication Date
December 1, 2013
Subject Category
Acoustics
Aircraft Propulsion and Power
Report/Patent Number
E-18290-1
NASA/TP-2013-217818
Funding Number(s)
WBS: WBS 432938.11.01.03.02.03.08
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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