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Tracing the unreliability and recognizing the major unreliability contribution of network components

Kaigui Xie and Roy Billinton

Reliability Engineering and System Safety, 2009, vol. 94, issue 5, 927-931

Abstract: Weak part analysis of a system is a key element in a system reliability quantification process. It enables the weakest areas of a system to be recognized and assists in directing remedial measures for improving the system reliability. This paper presents a novel approach to identifying the weak parts using the unreliability tracing (UT) technique and introduces the proportional sharing principle (PSP). The model for tracing the unreliability of a complex network is presented based on reliability evaluation methods using minimal cut sets (MCSs) and the PSP. The system UT sharing factors (UTSFs) are derived to easily identify the major unreliability contributions (MUCs) in a system. The method is illustrated using three cases and the UT, UTSF and the reliability impact analysis of different components are discussed. The results show that the developed technique can be applied to complex networks for UT tracing and recognizing the MUC.

Keywords: Tracing the unreliability; Network; Proportional sharing principle; Unreliability tracing sharing factors; Recognizing major unreliability contributions (search for similar items in EconPapers)
Date: 2009
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:reensy:v:94:y:2009:i:5:p:927-931

DOI: 10.1016/j.ress.2008.10.009

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