Reliability of mission-based k-out-of-n systems with exponential phase durations and component lifetimes
Proceedings of the Institution of Mechanical Engineers, Part O: Journal of Risk and Reliability, vol.235, no.3, pp.446-457, 2021 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 235 Issue: 3
- Publication Date: 2021
- Doi Number: 10.1177/1748006x20969300
- Journal Name: Proceedings of the Institution of Mechanical Engineers, Part O: Journal of Risk and Reliability
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
- Page Numbers: pp.446-457
- Keywords: k-out-of-n systems, Mission-based systems, phased-mission systems, survival analysis
- Yıldız Technical University Affiliated: Yes
Abstract
This paper focuses on the reliability analysis of (Formula presented.) -out-of- (Formula presented.) systems which are designed to perform a given mission consisting of several distinct phases. As the phases of the mission change, the reliability characteristics of the system and the system structure vary accordingly. The phase transition probabilities, phase durations, and component failure rates are dependent on the number of operating components. Moreover, the system is allowed to have cold, warm, or hot standby components. We propose computationally tractable methods to compute the system reliability, mean time to failure, and long-run availability for such a general system structure. We also provide a numerical analysis to show the applicability and the empirical computational complexity of the proposed methods.