The University of Southampton
University of Southampton Institutional Repository

On predicting the response of acoustically-excited doubly curved sandwich panels

On predicting the response of acoustically-excited doubly curved sandwich panels
On predicting the response of acoustically-excited doubly curved sandwich panels
This paper presents a recent programme of research, which has concentrated on the measurement and prediction of the dynamic response of doubly curved composite honeycomb sandwich panels to high intensity, random acoustic excitation. Four panels with varying radii of curvature were tested in a progressive wave tube (PWT) facility at overall sound pressure levels up to 164 dB (re 2×10?5 Pa). Several methods are presented to predict the dynamic response of the panels to random acoustic excitation. The first of these was the single-degree-of freedom (SDOF) approximation method, where different assumptions with regard to the spatial characteristics of the pressure loading are made. Finite element analysis (FEA) was also used to predict the response, where the pressure loading was assumed to consist of a series of travelling waves at grazing incidence to the structure. The results presented for both the SDOF approximation method and the FEA method show good agreement between predicted and measured strain values, which are also presented.
2113-2122
Cunningham, P.R.
678bb28d-d7b5-4c50-b312-0a25cec0c3f5
Langley, R.S.
3fac905f-197c-45b4-bd7c-c2df2235e279
White, R.G.
d67216d7-2691-4322-9dac-56b96add39e1
Cunningham, P.R.
678bb28d-d7b5-4c50-b312-0a25cec0c3f5
Langley, R.S.
3fac905f-197c-45b4-bd7c-c2df2235e279
White, R.G.
d67216d7-2691-4322-9dac-56b96add39e1

Cunningham, P.R., Langley, R.S. and White, R.G. (2002) On predicting the response of acoustically-excited doubly curved sandwich panels. International Conference on Noise and Vibration Engineering. 16 - 18 Sep 2002. pp. 2113-2122 .

Record type: Conference or Workshop Item (Paper)

Abstract

This paper presents a recent programme of research, which has concentrated on the measurement and prediction of the dynamic response of doubly curved composite honeycomb sandwich panels to high intensity, random acoustic excitation. Four panels with varying radii of curvature were tested in a progressive wave tube (PWT) facility at overall sound pressure levels up to 164 dB (re 2×10?5 Pa). Several methods are presented to predict the dynamic response of the panels to random acoustic excitation. The first of these was the single-degree-of freedom (SDOF) approximation method, where different assumptions with regard to the spatial characteristics of the pressure loading are made. Finite element analysis (FEA) was also used to predict the response, where the pressure loading was assumed to consist of a series of travelling waves at grazing incidence to the structure. The results presented for both the SDOF approximation method and the FEA method show good agreement between predicted and measured strain values, which are also presented.

Full text not available from this repository.

More information

Published date: 2002
Venue - Dates: International Conference on Noise and Vibration Engineering, 2002-09-16 - 2002-09-18

Identifiers

Local EPrints ID: 22406
URI: http://eprints.soton.ac.uk/id/eprint/22406
PURE UUID: 9796da17-fa53-46a0-999a-7d96edb6bea5

Catalogue record

Date deposited: 04 May 2006
Last modified: 15 Jul 2019 19:22

Export record

Contributors

Author: P.R. Cunningham
Author: R.S. Langley
Author: R.G. White

University divisions

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.

×