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Volume 42 Issue 9
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Journal of Beijing University of Aeronautics and Astronautics  > 2016  >  42(9): 1986-1991.
LI Peichang, YUAN Hongjie, CAO Zhenya, et al. Quantitative method of dynamic fault tree analysis for imperfect coverage system[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(9): 1986-1991. doi: 10.13700/j.bh.1001-5965.2015.0590(in Chinese)
Citation: LI Peichang, YUAN Hongjie, CAO Zhenya, et al. Quantitative method of dynamic fault tree analysis for imperfect coverage system[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(9): 1986-1991. doi: 10.13700/j.bh.1001-5965.2015.0590(in Chinese)
shu

Quantitative method of dynamic fault tree analysis for imperfect coverage system

doi: 10.13700/j.bh.1001-5965.2015.0590

  • School of Reliability and Systems Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

Funds:  National Defense Basic Scientific Research Program of China (61325102)
  • Received Date: 10 Sep 2015
  • Publish Date: 20 Sep 2016
    Abstract
  • In order to efficiently perform reliability analysis for imperfect coverage system which contains standby units that make the dynamic fault tree analysis very complicated, a quantitative reliability analysis method applied to warm spare gate is proposed. The step function and impulse function are introduced to describe the dynamic failure characteristics of standby units. Then, considering the dynamic system with imperfect coverage, the paper deduces the formulas for calculating the reliability of warm spare gate. Finally, an airborne electronic device as an example illustrates the feasibility of the method by establishing system dynamic fault tree. Compared to the existing method without consideration of imperfect coverage, combined with system sensitivity analysis, the computational result of the proposed method is more rational and provides a novel foundation for further research on reliability quantitative analysis.

     

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