Reliability analysis of phased mission systems when components can be swapped upon failure

Coolen, F.P.A.; Huang, X.; Najem, A.

Abstract

This paper proposes a new strategy to improve the reliability of phased mission systems (PMS), namely, by swapping of components. In the proposed strategy, when a component fails, it can be swapped by another one in the system which is still functioning. We consider both the options to swap components at any time and for swaps to be possible only at phase transitions. This paper also discusses the strategy of swapping components according to structure importance. The structure importance is used to measure the importance level of the components in contributing to system reliability. Then, when a component with high importance fails, it is swapped by another component with lower importance from the system which has not yet failed. The survival signature methodology is implemented to assess the reliability of PMS when there is a possibility of components swapping. In addition, we consider the cost effectiveness of component swapping through two models (time independent and time dependent) of penalty costs for PMS.

Citation

Coolen, F., Huang, X., & Najem, A. (2020). Reliability analysis of phased mission systems when components can be swapped upon failure. ASCE-ASME Journal of Risk and Uncertainty in Engineering Systems, Part B: Mechanical Engineering, 6(2), Article 020905. https://doi.org/10.1115/1.4046328

• Journal Article Type: Article
• Acceptance Date: Dec 29, 2019
• Online Publication Date: Mar 27, 2020
• Publication Date: Jun 30, 2020
• Deposit Date: Jan 7, 2020
• Publicly Available Date: Mar 27, 2021
• Journal: ASCE-ASME journal of risk and uncertainty in engineering systems, Part B. Mechanical engineering
• Print ISSN: 2332-9017
• Electronic ISSN: 2332-9025
• Publisher: American Society of Mechanical Engineers
• Peer Reviewed: Peer Reviewed
• Volume: 6
• Issue: 2
• Article Number: 020905
• DOI: https://doi.org/10.1115/1.4046328
• Public URL: https://durham-repository.worktribe.com/output/1274566