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Low frequency damping of metal panels in ambient Air

Walker, S.J.I., Aglietti, G.S. and Cunningham, P.R. (2008) Low frequency damping of metal panels in ambient Air Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 222, (C8), pp. 1413-1420. (doi:10.1243/09544062JMES850).

Record type: Article

Abstract

Mathematical models of structural dynamics are widely used and applied in many branches of science and engineering and it has been argued that many of the shortfalls with these models are due to the fact that the physics of joint dynamics are not properly represented. Experimental analyses are therefore widely used to underpin any work in this area. The most renowned model for predicting the damping resulting from air pumping is based on a significant quantity of experimental data and was generally developed and applied to high frequency vibrations of jointed or stiffened panels. This publication applies this model to low frequency panel vibrations, assessing the accuracy of the model for these systems. It is concluded that the theoretical model for high stiffness joints, although generally over approximating the damping magnitude, gives a good conservative estimate of the increase in damping due to air pumping for low frequency vibrations.

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More information

Published date: 2008
Keywords: low frequency damping, metal panels, ambient air
Organisations: Aerodynamics & Flight Mechanics, Aeronautics, Astronautics & Comp. Eng, Faculty of Engineering and the Environment, Astronautics Group

Identifiers

Local EPrints ID: 58551
URI: http://eprints.soton.ac.uk/id/eprint/58551
ISSN: 0954-4062
PURE UUID: 16297470-364e-42a9-b6a9-240eb0242f48

Catalogue record

Date deposited: 19 Aug 2008
Last modified: 06 Sep 2017 16:32

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