Common cause and load-sharing failures-based reliability analysis for parallel systems | Zendy

Chao Zhang | Zendy; Yunan Zhang | Zendy

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Common cause and load-sharing failures-based reliability analysis for parallel systems

Author(s) -

Chao Zhang,

Yunan Zhang

Publication year - 2019

Publication title -

eksploatacja i niezawodnosc - maintenance and reliability

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.47

H-Index - 27

eISSN - 2956-3860

pISSN - 1507-2711

DOI - 10.17531/ein.2020.1.4

Subject(s) - common cause failure , load sharing , reliability (semiconductor) , computer science , common cause and special cause , reliability engineering , joint (building) , component (thermodynamics) , failure causes , distributed computing , structural engineering , engineering , power (physics) , operations management , physics , quantum mechanics , thermodynamics

For parallel system reliability, the mean time to failure of parallel system under common cause failure (load-sharing failure) is shorter than that of the system without common cause failure (load-sharing failure). The traditional calculation approaches of mean time to failure of parallel systems do not consider the possible effect of common cause and load-sharing failure. However, it may result in the poor accuracy of mean time to failure of parallel system and pose a threat to system reliability. This paper not only considers the effect of common cause failure with stress strength, but also investigates the joint effect of the load-sharing and common cause failures. Besides, the joint failure model of three-dependent-component parallel system are established, and the corresponding properties are analyzed. Finally, a numerical example is used to illustrate the proposed method.

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