Modeling of fuzzy damping in dynamic finite element analysis

Author

Pham, T.D. ; Valliappan, S. ; Yazdchi, M.

Author_Institution

Eng. Computer Services Pty Ltd., Bowral, NSW, Australia

Volume

4

fYear

1995

fDate

20-24 Mar 1995

Firstpage

1971

Abstract

The fuzzy-set modeling of imprecise (material) damping in dynamic finite element analysis is presented in this paper. The damping ratio is considered to be fuzzy due to its inherent imprecision. Rayleigh damping model in the finite element analysis, is used for the fuzzy-set modeling. The results of this fuzzy dynamic finite element analysis are presented in terms of the possibility distributions of the velocity and acceleration. Crisp outputs of these fuzzy distributions can also be obtained using a defuzzification technique

Keywords

damping; finite element analysis; fuzzy set theory; possibility theory; vibrations; FEA; Rayleigh damping model; defuzzification; dynamic finite element analysis; fuzzy damping modeling; fuzzy-set modeling; imprecise damping; material damping; possibility distributions; Acceleration; Australia; Civil engineering; Damping; Design engineering; Equations; Finite element methods; Frequency; Information analysis; Uncertainty;

fLanguage

English

Publisher

ieee

Conference_Titel

Fuzzy Systems, 1995. International Joint Conference of the Fourth IEEE International Conference on Fuzzy Systems and The Second International Fuzzy Engineering Symposium., Proceedings of 1995 IEEE Int

Conference_Location

Yokohama

Print_ISBN

0-7803-2461-7

Type

conf

DOI

10.1109/FUZZY.1995.409949

Filename

409949