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Reliability Importance Analysis of Generalized Phased-Mission Systems

Volume 3, Number 3, July 2007 - Paper 1  - pp. 303 - 318

LIUDONG XING

Electrical and Computer Engineering Department.
University of Massachusetts Dartmouth
285 Old Westport Road, North Dartmouth, MA 02747, USA

(Received on June 8, 2006)


Abstract:

Reliability importance analysis is usually used to detect design weakness, to identify which components contribute the most to the failure of a system, and thus to help find the most cost-effective way for upgrading the system. In this paper, we consider the reliability importance analysis of components in a generalized phased-mission system using the Birnbaum's measure. Our method is based on multi-state binary decision diagrams. In addition, it accounts for two-level modular imperfect coverage that arises from the combination of traditional imperfect coverage and more general than OR-ed combinatorial phase requirements. An example three-phased mission system is analyzed to illustrate the applications and advantages of the proposed approach.

 

References: 22

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