Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
803697 | Mechanics Research Communications | 2008 | 8 Pages |
Abstract
A common approximation in the analysis of non-classically damped systems is to ignore the off-diagonal elements of the modal damping matrix. This procedure is termed the decoupling approximation. Contrary to widely accepted beliefs, it is shown numerically that over a finite range, errors due to the decoupling approximation can continuously increase at any specified rate while the modal damping matrix becomes more and more diagonal.
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Authors
M. Morzfeld, N. Ajavakom, F. Ma,