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Reliability of warm-standby systems subject to imperfect fault coverage

Author

Listed:
  • Ola Tannous
  • Liudong Xing
  • Rui Peng
  • Min Xie

Abstract

This article models and analyzes the reliability of warm-standby systems subject to imperfect fault coverage based on sequential multistate decision diagrams. For warm-standby systems, the standby units have different failure rates before and after they are used to replace the online faulty unit. Furthermore, a component fault may propagate through the system and cause the entire system to fail if the fault is uncovered or undetected due to the imperfect system recovery mechanism. Existing works on warm-standby systems with imperfect fault coverage are restricted to some special cases, such as cases assuming an exponential time-to-failure distribution for all the system components or cases considering only one warm spare unit. The proposed sequential multistate decision diagram–based approach can overcome the limitations of the existing approaches. Examples are given to illustrate its advantages and applications.

Suggested Citation

  • Ola Tannous & Liudong Xing & Rui Peng & Min Xie, 2014. "Reliability of warm-standby systems subject to imperfect fault coverage," Journal of Risk and Reliability, , vol. 228(6), pages 606-620, December.
    • Handle: RePEc:sae:risrel:v:228:y:2014:i:6:p:606-620
    DOI: 10.1177/1748006X14541255
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    References listed on IDEAS

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    1. Rauzy, Antoine B., 2011. "Sequence Algebra, Sequence Decision Diagrams and Dynamic Fault Trees," Reliability Engineering and System Safety, Elsevier, vol. 96(7), pages 785-792.
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    Cited by:

    1. Wu, Xiaoyue & Hillston, Jane, 2015. "Mission reliability of semi-Markov systems under generalized operational time requirements," Reliability Engineering and System Safety, Elsevier, vol. 140(C), pages 122-129.
    2. Levitin, Gregory & Xing, Liudong & Dai, Yuanshun, 2018. "Heterogeneous 1-out-of-N warm standby systems with online checkpointing," Reliability Engineering and System Safety, Elsevier, vol. 169(C), pages 127-136.
    3. Levitin, Gregory & Xing, Liudong & Haim, Hanoch Ben & Dai, Yuanshun, 2019. "Optimal structure of series system with 1-out-of-n warm standby subsystems performing operation and rescue functions," Reliability Engineering and System Safety, Elsevier, vol. 188(C), pages 523-531.
    4. Levitin, Gregory & Xing, Liudong & Dai, Yuanshun, 2018. "Co-optimization of state dependent loading and mission abort policy in heterogeneous warm standby systems," Reliability Engineering and System Safety, Elsevier, vol. 172(C), pages 151-158.

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