Updating of Finite Element Model in Considering Mode Errors with Fuzzy Theory

Abstract:

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Finite element model updating aims at reconciling the analytical model with the test one, to acquire a refined model with high-fidelity in structural dynamic properties. However, testing data are inevitable polluted by noises. In this study, the mode parameters and design variables are modeled as fuzzy variables, and a fuzzy model updating method is developed. Instead of a single optimal model, a set of satisfactory models is obtained. The most physically compatible solution is sorted by insights to the structures. The proposed method is applied to a real concrete bridge, for which a physically meaningful model is identified.

Info:

Periodical:

Key Engineering Materials (Volumes 413-414)

Edited by:

F. Chu, H. Ouyang, V. Silberschmidt, L. Garibaldi, C.Surace, W.M. Ostachowicz and D. Jiang

Pages:

785-792

DOI:

10.4028/www.scientific.net/KEM.413-414.785

Citation:

Y. Liu et al., "Updating of Finite Element Model in Considering Mode Errors with Fuzzy Theory", Key Engineering Materials, Vols. 413-414, pp. 785-792, 2009

Online since:

June 2009

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Price:

$35.00

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