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Acoustic attenuation design requirements established through EPNL parametric tradesAn optimization procedure for the provision of an acoustic lining configuration that is balanced with respect to engine performance losses and lining attenuation characteristics was established using a method which determined acoustic attenuation design requirements through parametric trade studies using the subjective noise unit of effective perceived noise level (EPNL).
Document ID
19750003913
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Veldman, H. F. (Boeing Co. Wichita, KS, United States)
Date Acquired
September 3, 2013
Publication Date
January 1, 1972
Subject Category
Aircraft Propulsion And Power
Report/Patent Number
NASA-CR-120986
D3-8686
Report Number: NASA-CR-120986
Report Number: D3-8686
Accession Number
75N11985
Funding Number(s)
CONTRACT_GRANT: NAS3-14321
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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