Showing papers on "Constrained-layer damping published in 1986"
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TL;DR: The constrained layer damping technique is based on the application of a layer of viscoelastic material onto the surface to be damped and beneath a stiff material The damping mechanism is dissipation of energy caused by shear motion in the damping layer as mentioned in this paper.
Abstract: The constrained layer damping technique is based on the application of a layer of viscoelastic material onto the surface to be damped and beneath a layer of stiff material The damping mechanism is dissipation of energy caused by shear motion in the damping layer An early model for the propagation of straight‐crested waves in a constrained plate by Kerwin [J Acoust Soc Am 31, 952–962 (1959)] uses thin‐plate theory for the base plate and is limited to flexural waves This model was extended to cover extensional as well as flexural waves in thick plates by describing the base plate by exact elasticity theory [PS Dubbelday, J Acoust Soc Am 80, 1097–1102 (1986)] The present study proposes the formulation of a model based on exact elasticity theory for all three layers A computer program based on the exact equations for the case of an infinite composite plate in vacuum has been developed It is used as a basis for comparison of results from previous models and to investigate certain anomalies in t
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