Abstract

An approximate analysis, utilizing the normal-mode method, is derived for the response of a multispan skin-stringer structure with isolated tuned viscoelastic dampers located at arbitrary points on the surface. The analysis is shown to lead to no coupling (or very little) between the modes of vibration of structures with identical panels when the dampers are placed at the center of each span and particularly simple solutions are derived in this case. To illustrate the technique, a solution is obtained for a specific idealized multispan structure.

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