Réponse harmonique de structures comportant des paramètres imprécis

Abstract : This article presents a numerical method for calculating the harmonic response of a mechanical structure including imprecise parameters. The imprecision deals with modal parameters and is modelled by fuzzy numbers. The problem is formulated on modal superposition principle considering a proportional damping. The treatment of fuzzy number is realized from the concept of-cut coupled with interval arithmetic. The results obtained are the weighted envelopes of frequency responses. They are compared with results of tests from a set of similar structures.
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Karine Ruffin-Mourier, Thierry Tison, Bertrand Lallemand, Franck Massa. Réponse harmonique de structures comportant des paramètres imprécis. 8e Colloque national en calcul des structures, CSMA, May 2007, Giens, France. ⟨hal-01487636⟩

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