Validation of a prediction model for aerodynamic noise from aircraft landing gear
Validation of a prediction model for aerodynamic noise from aircraft landing gear
The continued development of quiet engines is now giving rise to situations where airframe noise is comparable with engine noise at approach. The landing gear is a major contributor to airframe noise, and this paper outlines development and testing of a semi-empirical noise model for predicting the benefit of noise control fairings. The model is based on nondimensional source spectra derived from a data base of full-scale tests on A320 landing gear installed in the DNW wind tunnel and is used to predict the noise reduction potential of a variety of fairings installed on the main and noise gears from an A340 aircraft . The model is found to give good agreement with data and this gives confidence that it may be used as an engineering tool to optimise fairing design. The paper also discusses the way in which the model can provide a framework for incorporating CFD data in the design process and also number of factors which complicate the comparison of noise data from wind tunnel and flyover tests.
Smith, M.G.
1bc8608d-0178-4793-8f73-46a6c6b9b279
Chow, L.C.
d0f85930-0d96-4ed5-98f3-9a04182e4274
2002
Smith, M.G.
1bc8608d-0178-4793-8f73-46a6c6b9b279
Chow, L.C.
d0f85930-0d96-4ed5-98f3-9a04182e4274
Smith, M.G. and Chow, L.C.
(2002)
Validation of a prediction model for aerodynamic noise from aircraft landing gear.
8th AIAA/CEAS Aeroacoustics Conference, Breckenridge, USA.
16 - 18 Jun 2002.
8 pp
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
The continued development of quiet engines is now giving rise to situations where airframe noise is comparable with engine noise at approach. The landing gear is a major contributor to airframe noise, and this paper outlines development and testing of a semi-empirical noise model for predicting the benefit of noise control fairings. The model is based on nondimensional source spectra derived from a data base of full-scale tests on A320 landing gear installed in the DNW wind tunnel and is used to predict the noise reduction potential of a variety of fairings installed on the main and noise gears from an A340 aircraft . The model is found to give good agreement with data and this gives confidence that it may be used as an engineering tool to optimise fairing design. The paper also discusses the way in which the model can provide a framework for incorporating CFD data in the design process and also number of factors which complicate the comparison of noise data from wind tunnel and flyover tests.
This record has no associated files available for download.
More information
Published date: 2002
Additional Information:
Volume AIAA 2002-2581
Venue - Dates:
8th AIAA/CEAS Aeroacoustics Conference, Breckenridge, USA, 2002-06-16 - 2002-06-18
Identifiers
Local EPrints ID: 10753
URI: http://eprints.soton.ac.uk/id/eprint/10753
PURE UUID: ee17bb7e-56ad-41af-b5da-c174bb7167a4
Catalogue record
Date deposited: 01 Jul 2005
Last modified: 08 Jan 2022 09:47
Export record
Contributors
Author:
M.G. Smith
Author:
L.C. Chow
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics