Journal
RELIABILITY ENGINEERING & SYSTEM SAFETY
Volume 167, Issue -, Pages 554-560Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ress.2017.07.006
Keywords
Phased mission system; Random shock process; Common shock effect; Redundancy allocation
Funding
- National Natural Science Foundation of China [61170042]
- Jiangsu Province development and reform commission [2013-883]
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Systems performing consecutive non-overlapping mission phases in a random environment are considered. Each phase is performed by a specific 1-out-of-n subsystem consisting of statistically identical parallel elements with the same functionality. The environment is modeled by the Poisson process of shocks commonly affecting all elements, by increasing their failure rate. A method for evaluating the mission success probability for arbitrary redundancy level in each subsystem is presented. The constrained redundancy allocation problem is formulated and solved. Illustrative examples are presented. (C) 2017 Elsevier Ltd. All rights reserved.
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