Optimal mission abort policy for partially repairable heterogeneous systems
- 주제(키워드) Maintenance , Minimal repair , Mission abort , Mission success probability , System survival probability
- 등재 SCIE, SCOPUS
- 발행기관 Elsevier B.V.
- 발행년도 2018
- URI http://www.dcollection.net/handler/ewha/000000156345
- 본문언어 영어
- Published As http://dx.doi.org/10.1016/j.ejor.2018.06.032
초록/요약
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.
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