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Title: Low-frequency damping of metal panels in ambient air
Authors: Walker, S.J.I.
Aglietti, G.S.
Cunningham, Paul
Keywords: Damping
Metal panel
Issue Date: 2008
Publisher: Professional Engineering Publishing / © IMECHE
Citation: WALKER, S.J.I., AGLIETTI, G.S. and CUNNINGHAM, P., 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(8), pp. 1413-1420.
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 by 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.
Description: This is an article from the journal, Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science [© IMechE ]. It is also available at: http://dx.doi.org/10.1243/09544062JMES850
Version: Published
DOI: 10.1243/09544062JMES850
URI: https://dspace.lboro.ac.uk/2134/4868
ISSN: 0954-4062
Appears in Collections:Published Articles (Aeronautical and Automotive Engineering)

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