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THEORETICAL AND EXPERIMENTAL IDENTIFICATION OF A NON-LINEAR BEAM

โœ Scribed by G. KERSCHEN; J.-C. GOLINVAL; K. WORDEN

Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
361 KB
Volume
244
Category
Article
ISSN
0022-460X

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โœฆ Synopsis

The identi"cation of the dynamic characteristics of linear systems is now widely used and interest in non-linear systems has increased. The objective of this paper is to demonstrate the performance of the restoring force surface method as far as the identi"cation of non-linear systems is concerned. The vibrations of a clamped beam are investigated for two di!erent kinds of non-linearity. Firstly, the beam shows a non-linear behaviour characterized by a piecewise linear sti!ness and secondly, the non-linearity comes from a bilinear sti!ness. Both numerical and experimental results are presented.

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