Reliability assessment of a degradable system with fuzzy lifetime distribution

Author

Patrai, Kalika ; Uprety, Indu

Author_Institution

Dept. of Comput. Applic., Galgotia Inst. of Manage. & Technol., Greater Noida, India

fYear

2015

fDate

15-16 May 2015

Firstpage

208

Lastpage

212

Abstract

The reliability estimation of a gracefully degradable system under fuzzy environments is proposed in this paper. The fuzzy parameters are assumed to be fuzzy random variables with fuzzy probability distributions and a computational procedure is developed to evaluate the fuzzy reliability function and its α-cut sets. In order to achieve this purpose, a Markov model of a 3-unit gracefully degradable system with coverage factor is developed to estimate the reliability when the lifetimes of components are described using fuzzy exponential distribution. The proposed methodology may be simply extended to the case of general lifetime probability distributions.

Keywords

Markov processes; exponential distribution; fuzzy set theory; reliability theory; 3-unit gracefully degradable system; Markov model; coverage factor; fuzzy exponential distribution; fuzzy lifetime distribution; fuzzy parameters; fuzzy probability distributions; fuzzy random variables; fuzzy reliability function; reliability assessment; reliability estimation; Automation; Computational modeling; Exponential distribution; Markov processes; Reliability; Uncertainty; α-cut set; Coverage factor; Fuzzy probability distribution; Fuzzy reliability function; Markov model;

fLanguage

English

Publisher

ieee

Conference_Titel

Computing, Communication & Automation (ICCCA), 2015 International Conference on

Conference_Location

Noida

Print_ISBN

978-1-4799-8889-1

Type

conf

DOI

10.1109/CCAA.2015.7148373

Filename

7148373