 Redundancy versus protection for a non-reparable phased-mission system subject to external impactsRui Peng, Di Wu, Hui Xiao, Liudong Xing and Kaiye Gao Reliability Engineering and System Safety, 2019, vol. 191, issue C Abstract: Systems that have multiple consecutive and non-overlapping phases of operations during their missions are referred to as phased-mission systems (PMSs). Previous research on modeling reliability of a PMS has mainly focused on internal failures. However, some real-world PMSs can also be subject to external impacts, which may contribute to the occurrences of system failures. This paper makes contributions by modeling a redundant PMS subject to both internal failures and external impacts with or without overarching protection. System reliability is modeled for cases where the demand levels are the same for all phases, and where they are not. The optimal resource allocation of redundancy and protection is further studied to maximize the system reliability. The expected system loss is also modeled and optimized for cases where the system can function partially when the demand is unsatisfied. Examples are presented to illustrate applications of the proposed models. Keywords: Reliability; External impact; Internal failure; Phased-mission systems; Protection (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:reensy:v:191:y:2019:i:c:s0951832019302625 DOI: 10.1016/j.ress.2019.106556 Access Statistics for this article Reliability Engineering and System Safety is currently edited by Carlos Guedes Soares More articles in Reliability Engineering and System Safety from Elsevier |
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