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Dynamic response of doubly curved honeycomb sandwich panels to random acoustic excitation. Part 1: Experimental study

Cunningham, P.R. and White, R.G. (2003) Dynamic response of doubly curved honeycomb sandwich panels to random acoustic excitation. Part 1: Experimental study Journal of Sound and Vibration, 264, (3), pp. 579-603. (doi:10.1016/S0022-460X(02)01210-5).

Record type: Article

Abstract

A set of four doubly curved, composite honeycomb sandwich panels has been tested with broad band, random acoustic excitation in a progressive wave tube facility. This paper presents the experimental results in the form of dynamic face plate strain measurements taken from various points close to the centre of the panels, on both the inner and outer face plates. The panels were tested at overall sound pressure levels up to 164 dB (ref. 2×10?5 Pa, over a frequency bandwidth of 60–600 Hz). The response was found to be linear, with a maximum measured root mean square strain of 250?. The doubly curved geometry was found to have a profound effect on the ratio of inner-to-outer face plate strain, which was compared with ratios reported for flat and singly curved geometries. The second part of this study concentrates on three methods for predicting the response of the doubly curved panels to random acoustic excitation.

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Published date: 2003

Identifiers

Local EPrints ID: 22446
URI: http://eprints.soton.ac.uk/id/eprint/22446
ISSN: 0022-460X
PURE UUID: 3f03942c-ecd2-4442-8448-7453d3e87078

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Date deposited: 21 Mar 2006
Last modified: 17 Jul 2017 16:22

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Contributors

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

University divisions

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