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Non-Homogeneous Markov Reward Model for Aging Multi-state System under Minimal Repair

Volume 5, Number 4, July 2009 - Paper 1  - pp. 303 - 312


1The Israel Electric Corporation Ltd., Reliability Department, New Office Building, P.O. 10, Haifa, Israel.
2Center for Reliability and Risk Management, Industrial Engineering and Management Department, Sami Shamoon College of Engineering, Bialik/Basel Sts., Beer Sheva, 84100, Israel.

(Received on August 28, 2008, revised on March 26, 2009)


The paper considers reliability analysis for aging multi-state system where the system and its components can have different performance levels ranging from perfect functioning to complete failure. Aging is treated as failure rate increasing during system lifetime. Reliability measures for multi-state system such as mean accumulated performance deficiency, mean number of failures, average availability, etc., are interpreted as system performability measures. The suggested approach presents the non-homogeneous Markov reward model for computation of these reliability measures for aging multi-state system under minimal repair. A numerical example is presented in order to illustrate the approach.


References: 15

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