Title :
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
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;
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
DOI :
10.1109/FUZZY.1995.409949
