Int J Performability Eng ›› 2019, Vol. 15 ›› Issue (1): 191-199.doi: 10.23940/ijpe.19.01.p19.190199

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Mission Reliability Model of Equipment System-of-Systems based on Weighted Parallel Structure

Xu Yana, Tailiang Songb, Junhai Caoa*(), and Long Gaoa   

  1. a Army Academy of Armored Force,Beijing,100072,China
    b China Defense Science Technology and Information Center,Beijing, 100072,China
  • Revised on ; Accepted on
  • Contact: Cao Junhai E-mail:frank_momo@163.com
  • About author:Xu Yan is currently pursuing a Ph.D. at the Army Academy of Armored Forces (AAAF) of China. His research interests include weapon system support engineering and equipment support system simulation.|Tailiang Song is a Ph.D. tutor and professor at China Defense Science Technology and Information Center. He received his Ph.D. from Beihang University in 2003. His current research interests include equipment integrated support and project management.|Junhai Cao is a Ph.D. tutor and professor at AAAF. His current research interests include equipment integrated support and project management.|Long Gao is currently pursuing a Ph.D. at AAAF. His research interests include weapon system support engineering and equipment support system simulation.

Abstract:

Aiming at the problem that the existing reliability logic model cannot accurately describe the logical relationship of reliability within the equipment system-of-systems (ESoS), the mission reliability model of the weighted parallel structure of ESoS was established based on the analysis of structure and characteristics of ESoS. Based on the traditional system structure, the model considered the mission reliability of each functional system and its contributions to the ESoS. The system contribution was taken as the system weight in the right-linkage structure, and the ESoS mission reliability evaluation model was derived according to the reliability status. Meanwhile, the system was modeled as a redundant system, and the solution of the model with the same and different failure probabilities were given. Through an example and comparative analysis, the rationality and validity of the method were verified.

Key words: equipment system of systems, mission reliability, weighted parallel structure, reliability assessment