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System Reliability Evaluation using Dynamic Fault Tree Analysis

동적 Fault Tree 분석을 이용한 시스템 신뢰도 평가

  • Received : 2013.04.16
  • Accepted : 2013.07.22
  • Published : 2013.10.31

Abstract

Reliability evaluation is important task in embedded system. It can avoid potential failures and manage the vulnerable components of embedded system effectively. Dynamic fault tree analysis is one of the reliability evaluation methods. It can represent dynamic characteristics of a system such as fault & error recovery, sequence-dependent failures. In this paper, the steering system, which is embedded system in vehicles, is represented using dynamic fault tree. We evaluate the steering system using approximation algorithm based on Simpson's rule. A set of simulation results shows that proposed method overcomes the low accuracy of classic approximation method without requiring no excessive calculation time of the Markov chain method.

Keywords

References

  1. Limnios, Nikoaos, Fault Trees, ISTE LTD, 2007.
  2. J.B. Dugan, S.J. Bavuso, M.A. Boyd, "Dynamic fault-tree models for fault-tolerant computer systems," IEEE Transactions on Reliability, Vol. 41, No. 3, pp.363-377, 1922.
  3. J.B. Dugan, B. Venkataraman, R. Gulati, "DIFTree: a software package for the analysis of dynamic fault tree models," Proceedings on Annual Reliability and Maintainability Symposium, pp.64-70, 1997.
  4. H. Boudali, J.B. Dugan, "A new bayesian network approach to solve dynamic fault trees," Proceedings on Reliability and Maintainability Symposium, 2005.
  5. W. Han, W. Guo, Z. Hou, "Research on the method of dynamic fault tree analysis," Proceedings on International Conference of Reliability, Maintainability and Safety, 2011.
  6. S. Amberkar, J.G. d' Ambrosio. B.T. Murray, J. Wysocki, B.J. Czerny, "A system-safety process for by-wire automotive systems," Proceedings on SAE World Congress, 2000.