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Marginal and joint reliability importance based on survival signature.

Eryilmaz, S. and Coolen, F.P.A. and Coolen-Maturi, T. (2018) 'Marginal and joint reliability importance based on survival signature.', Reliability engineering and system safety., 172 . pp. 118-128.


Marginal and joint reliability importance measures have been found to be useful in optimal system design. Various importance measures have been defined and studied for a variety of system models. The results in the literature are mostly based on the assumption that the components within the system are independent or identical. The present paper is concerned with computation of marginal and joint reliability importance for a coherent system that consists of multiple types of dependent components. In particular, by utilizing the concept of survival signature, expressions for marginal and joint reliability importance measures are presented. We also introduce reliability importance for a system of which only the survival signature is known, which therefore can be regarded to be a black box system.

Item Type:Article
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Publisher statement:© 2017 This manuscript version is made available under the CC-BY-NC-ND 4.0 license
Date accepted:10 December 2017
Date deposited:12 December 2017
Date of first online publication:15 December 2017
Date first made open access:15 December 2018

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