NDLI: Airframe noise prediction evaluation

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Airframe noise prediction evaluation

Content Provider	NASA Technical Reports Server (NTRS)
Author	Donelson, Michael J. Huang, Shumei C. Joshi, Mahendra C. Yamamoto, Kingo J.
Copyright Year	1995
Description	The objective of this study is to evaluate the accuracy and adequacy of current airframe noise prediction methods using available airframe noise measurements from tests of a narrow body transport (DC-9) and a wide body transport (DC-10) in addition to scale model test data. General features of the airframe noise from these aircraft and models are outlined. The results of the assessment of two airframe prediction methods, Fink's and Munson's methods, against flight test data of these aircraft and scale model wind tunnel test data are presented. These methods were extensively evaluated against measured data from several configurations including clean, slat deployed, landing gear-deployed, flap deployed, and landing configurations of both DC-9 and DC-10. They were also assessed against a limited number of configurations of scale models. The evaluation was conducted in terms of overall sound pressure level (OASPL), tone corrected perceived noise level (PNLT), and one-third-octave band sound pressure level (SPL).
File Size	5303134
Page Count	92
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19960003437
Archival Resource Key	ark:/13960/t6256jm6n
Language	English
Publisher Date	1995-10-01
Access Restriction	Open
Subject Keyword	Acoustics Flight Tests Dc 10 Aircraft Scale Models Aerodynamic Noise Noise Measurement Dc 9 Aircraft Octaves Aircraft Models Airframes Aircraft Noise Noise Intensity Landing Gear Proving Wind Tunnel Tests Prediction Analysis Techniques Noise Prediction Flapping Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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