Title :
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
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;
Conference_Titel :
Computing, Communication & Automation (ICCCA), 2015 International Conference on
Conference_Location :
Noida
Print_ISBN :
978-1-4799-8889-1
DOI :
10.1109/CCAA.2015.7148373
