✦ LIBER ✦

NON-LINEAR RESPONSE OF TWO DISORDERED PENDULA

✍ Scribed by A.A. Tjavaras; M.S. Triantafyllou

Publisher: Elsevier Science
Year: 1996
Tongue: English
Weight: 554 KB
Volume: 190
Category: Article
ISSN: 0022-460X
DOI: 10.1006/jsvi.1996.0047

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✦ Synopsis

The effect of non-linearities on the response of a localized system is investigated by studying the forced response of two coupled disordered pendula. It is found that localization persists for moderately large motions, while it is substantially reduced for larger motions. Spectral analysis, single and multiple Poincare´sections, and calculation of the divergence of neighbouring trajectories were used to characterize the response. The response, in both cases (moderately and very large motion) is quasi-periodic but the spectral content of the first case is much richer than that of the latter.

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