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Simulation Methods for System Reliability Using the Survival Signature

Patelli, E.; Feng, G.; Coolen, F.P.A.; Coolen-Maturi, T.

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Authors

E. Patelli

G. Feng



Abstract

Recently, the survival signature has been presented as a summary of the structure function which is sufficient for computation of common reliability metrics and has the crucial advantage that it can be applied to systems with components whose failure times are not exchangeable. The survival signature provides a huge reduction in required information, e.g. for its storage, compared to the full structure function, its implementation to larger systems is still difficult in a purely analytical manner and simulations may be required to derive the reliability metrics of interest. Hence, the main question addressed in this paper is whether or not the survival signature provides sufficient information for efficient simulation to derive the system’s failure time distribution. We answer this question in the affirmative by presenting two algorithms for survival signature-based simulation. In addition, we present a third simulation algorithm that can be used in case of repairable components. It turns out that these algorithms are very efficient, beyond the initial advantage of requiring only the survival signature to be available, instead of the full structure function.

Journal Article Type Article
Acceptance Date Jun 13, 2017
Online Publication Date Jun 15, 2017
Publication Date Jan 1, 2017
Deposit Date Jun 13, 2017
Publicly Available Date Jun 15, 2018
Journal Reliability Engineering and System Safety
Print ISSN 0951-8320
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 167
Pages 327-337
DOI https://doi.org/10.1016/j.ress.2017.06.018
Public URL https://durham-repository.worktribe.com/output/1385128

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