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Optimal mission abort policy for partially repairable heterogeneous systems

Title
Optimal mission abort policy for partially repairable heterogeneous systems
Authors
Cha J.H.Finkelstein M.Levitin G.
Ewha Authors
차지환
SCOPUS Author ID
차지환scopus
Issue Date
2018
Journal Title
European Journal of Operational Research
ISSN
0377-2217JCR Link
Citation
European Journal of Operational Research vol. 271, no. 3, pp. 818 - 825
Keywords
MaintenanceMinimal repairMission abortMission success probabilitySystem survival probability
Publisher
Elsevier B.V.
Indexed
SCIE; SCOPUS WOS scopus
Document Type
Article
Abstract
To enhance survivability of many real-world critical systems (e.g., aircrafts, human space flight systems and dangerous technological processes), mission abort procedures are often utilized in practice. In such cases, in order to improve survivability, a rescue or recovery procedure is initiated. In this paper, we first develop a methodology for obtaining the mission success probability (MSP) and the system survival probability (SSP) for heterogeneous systems with major and minor failures. A major failure is non-repairable and results in a failure of a mission, whereas a minor failure is minimally repaired. We consider a policy where a mission is aborted and a rescue procedure is activated if the mth minimal repair occurs before time ξ since the start of a mission. We demonstrate the tradeoff between the SSP and the MSP that should be balanced by the proper choice of the decision variables m and ξ. A detailed illustrative example is presented. © 2018 Elsevier B.V.
DOI
10.1016/j.ejor.2018.06.032
Appears in Collections:
자연과학대학 > 통계학전공 > Journal papers
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