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FUZZY MODAL FINITE ELEMENT ANALYSIS OF STRUCTURES WITH IMPRECISE MATERIAL PROPERTIES

โœ Scribed by B. Lallemand; A. Cherki; T. Tison; P. Level

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
122 KB
Volume
220
Category
Article
ISSN
0022-460X

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โœฆ Synopsis

This paper extends the fuzzy set theory to a dynamic finite element analysis of engineering systems which have uncertainties in material properties. A general algorithm which resolves the uncertain eigenvalue problem by using a reanalysis approach is considered. This algorithm is applied to the study of the modal behaviour of structures presenting uncertain material properties. Some indexes which determine the more sensitive eigenvalue to several uncertainty sources are also put forward. Finally, a plate structure as numerical path-test is analysed. The results of such a calculation determine the sensitivity of the modal behaviour to multiple simultaneous material parameters.

๐Ÿ“œ SIMILAR VOLUMES

Krylov model order reduction of finite e
Krylov model order reduction of finite element approximations of electromagnetic devices with frequency-dependent material properties
โœ Hong Wu; Andreas C. Cangellaris ๐Ÿ“‚ Article ๐Ÿ“… 2007 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 265 KB

## Abstract A methodology is presented for the Krylov subspaceโ€based model order reduction of finite element models of electromagnetic structures with material properties and impedance boundary conditions exhibiting arbitrary frequency dependence. The proposed methodology is a generalization of an