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Proceedings Paper

Viscoelastic damping layer optimization using a biomimetic approach: an experimental study
Author(s): Robin Wardle; Geoffrey R. Tomlinson
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Paper Abstract

The concept of using biologically inspired methods for the placement of surface damping treatments [i.e. viscoelastic material (VEM) free-layer damping] has recently been explored by the authors and has been shown to provide an interesting approach to the distribution of damping on the surface of a vibrating structure. Previous work considered the evolution of a VEM layer; 'damping cells' (elements of viscoelastic material) were 'born' on the surface of the structure in zones of high modal strain energy. More specifically, the viscoelastic material grew in locations where the energy dissipation potential of the viscoelastic material was highest. This work extends the previous study by exploring a significantly faster procedure for evaluating the damping layer distribution which utilises the modal strain energy (MSE) method. An experimental study, involving the actual construction of the predicted VEM layer distributions on a model cantilever, was also carried out to evaluate the accuracy of the predictions.

Paper Details

Date Published: 16 June 1998
PDF: 9 pages
Proc. SPIE 3327, Smart Structures and Materials 1998: Passive Damping and Isolation, (16 June 1998); doi: 10.1117/12.310678
Show Author Affiliations
Robin Wardle, Univ. of Sheffield (United Kingdom)
Geoffrey R. Tomlinson, Univ. of Sheffield (United Kingdom)

Published in SPIE Proceedings Vol. 3327:
Smart Structures and Materials 1998: Passive Damping and Isolation
L. Porter Davis, Editor(s)

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