Damping Inserts in Vibrating Structures

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Abstract
A method is presented for the prediction of the response of a vibrating system after the introduction of a damping insert between two distinct co-ordinates of the system, and procedures are given for the optimization of such inserts. The method can be extended to predict the effect of breaking the system and introducing a damping insert into the break, and may utilize the experimentally measured characteristics of both the original system and the damping insert. Butyl rubber inserts are found to reduce vibration amplitudes of models of typical engineering structures by as much as a factor of 4.

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