Journal on Communications ›› 2017, Vol. 38 ›› Issue (9): 159-166.doi: 10.11959/j.issn.1000-436x.2017156

• Papers • Previous Articles     Next Articles

Constraint analysis for extended dynamic fault tree

Qi-xuan WU1,Jian-feng MA1,Cong SUN1,Shuai ZHANG1,Shuang ZHANG2,Tao ZHENG2   

  1. 1 School of Cyber Engineering,Xidian University,Xi’an 710071,China
    2 Aeronautical Computing Technique Research Institute,Aviation Industry Corporation of China,Xi’an 710068,China
  • Revised:2017-03-30 Online:2017-09-01 Published:2017-10-18
  • Supported by:
    The National Natural Science Foundation of China(61303033);The National Natural Science Foundation of China(U1405255);The National High Technol-ogy Research and Development Program of China (863 Program)(2015AA017203);The Natural Science Basis Research Plan in Shaanxi Province of China(2016JM6034);The Aviation Science Foundation of China(20141931001);The Special Research Foundation of MIIT(MJ-2014-S-37)

Abstract:

As a new extension of dynamic fault trees,time delay gate was proposed.This new mechanism can be used to model the time delay on the fault propagation from the lower level subsystems to the higher level system.The dynamic Bayesian networks was extend to solve the dynamic fault trees containing time delay gates.An algorithm based on SMT to support the optimized failure distribution under the nondeterministic range constraint of basic events was also proposed.The effectiveness is shown by comparison with existing tools on analyzing and solving real systems,and the effects of range constraints and gate parameter on the failure distribution of systems is illustrated.

Key words: time delay gate, dynamic fault tree, dynamic Bayesian network, satisfiability modulo theory

CLC Number: 

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