Title: A new method for redundancy optimisation problem with fuzzy random lifetime

Authors: Javad Nematian

Addresses: Department of Industrial Engineering, University of Tabriz, P.O. Box 51666-14766, Tabriz, Iran.

Abstract: In this paper, a redundancy optimisation problem, in which element lifetimes are fuzzy random variables (FRVs), is formulated by using fuzzy stochastic programming model. Subsequently, a new method is developed to solve the model based on the concepts of mean value of FRVs, chance-constrained programming and binary integer programming. Furthermore, an illustrative numerical example is also solved to clarify the methods discussed in this paper and major types of system performance are investigated.

Keywords: reliability; fuzzy random variables; CCP method; integer programming; redundancy optimisation; chance-constrained programming.

DOI: 10.1504/IJOR.2011.042502

International Journal of Operational Research, 2011 Vol.12 No.2, pp.121 - 141

Published online: 14 Feb 2015 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article