The University of Southampton
University of Southampton Institutional Repository

Computer-aided liner optimization for broadband noise

Record type: Conference or Workshop Item (Other)

In this article the attenuation of brodband noise in an accoustically-lined circular-section dut is investigated. The aim is to predict how an axially segmented liner influences the attenuation of braodband noise in an aero-engine intake. The sound field is modelled using a multi-modal representation, assuming an ensemble of uncorrelated modes over a wide range of frequencies. An optimization procedure based on a Response Surface Model is used to investigate the optimum uniform and axially-segmented acoustic liner that maximizes the attenuation of braodband noise. An approximate calculation of the Perceived Noise level (PNL) is used for the objective function. In this arcticle the benefit of using an axially segmented liner instead of a uniform liner to attenuate broadband noise is demonstrated.

PDF lafr_04.pdf - Accepted Manuscript
Download (1MB)

Citation

Lafronza, L., McAlpine, A., Keane, A.J. and Astley, R.J. (2004) Computer-aided liner optimization for broadband noise At 10th AIAA/CEAS Aeroacoustics Conference. 10 - 12 May 2004. 11 pp.

More information

Published date: 2004
Additional Information: AIAA 2004-3029
Venue - Dates: 10th AIAA/CEAS Aeroacoustics Conference, 2004-05-10 - 2004-05-12

Identifiers

Local EPrints ID: 10396
URI: http://eprints.soton.ac.uk/id/eprint/10396
PURE UUID: 88b2ad7c-cbad-4da6-b8c4-ddd1cb525799
ORCID for A. McAlpine: ORCID iD orcid.org/0000-0003-4189-2167

Catalogue record

Date deposited: 06 Feb 2006
Last modified: 17 Jul 2017 17:07

Export record

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

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×