Fuzzy analysis for steady-state availability: a mathematical programming approach
- 1 December 2006
- journal article
- research article
- Published by Informa UK Limited in Engineering Optimization
- Vol. 38 (8), 909-921
- https://doi.org/10.1080/03052150600795854
Abstract
Steady-state availability has been widely applied as a measure to evaluate the reliability characteristics of a repairable system. However, it is generally not realistic to make assumptions concerning failure time and repair time distributions. Thus, this article has developed a procedure to construct the membership function for fuzzy steady-state availability. Based on Zadeh’s extension principle, a pair of mathematical programs is formulated to find α-cuts of fuzzy steady-state availability. An explicit closed-form expression for the membership function is derived by taking the inverse function of the $\alpha$-cut. To illustrate the interpretation and practical value of fuzzy availability in real-world applications, several numerical examples are provided and discussed.This publication has 15 references indexed in Scilit:
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