Reliability evaluation of avionics system with imperfect fault coverage and propagated failure mechanisms

Chen, Ying; Yang, Song; Kang, Rui

doi:10.1016/j.cja.2020.07.003

Cited by 10 publications

(1 citation statement)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Then the Monte Carlo simulation method was applied to analyze the PDEP. The reliability of cold-standby systems [20], k-out-of-n systems [21], imperfect fault coverage systems [22], multistate systems [23] and multi-state phased-mission systems [24] with PDEP effect were also studied. However, to simplify the problem, the aforementioned algorithm was based on Monte Carlo simulation, the BDD was only used to represent the failure logic.…”

Section: Introductionmentioning

confidence: 99%

System Reliability Evaluation Method Considering Physical Dependency with FMT and BDD Analytical Algorithm

Chen

Wang

Yang

et al. 2022

J. of Syst. Eng. Electron.

Self Cite

View full text Add to dashboard Cite

Recently, the physics-of-failure (PoF) method has been more and more popular in engineering to understand the failure mechanisms (FMs) of products. However, due to the lack of system modeling methods and problem-solving algorithms, the information of FMs cannot be used to evaluate system reliability. This paper presents a system reliability evaluation method with failure mechanism tree (FMT) considering physical dependency (PDEP) such as competition, trigger, acceleration, inhibition, damage accumulation, and parameter combination. And the binary decision diagram (BDD) analytical algorithm is developed to establish a system reliability model. The operation rules of ite operators for generating BDD are discussed. The flow chart of system reliability evaluation method based on FMT and BDD is proposed. The proposed method is applied in the case of an electronic controller drive unit. Results show that the method is effective to evaluate system reliability from the perspective of FM.

show abstract