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Stochastic analysis of a complex system under preemptive resume repair policy using Gumbel-Hougaard family copula

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Listed:
  • V.V. Singh
  • Hamisu I. Ayagi

Abstract

The present paper focuses on the study of complex system consisting of three units super priority, priority and ordinary unit under preemptive resume repair policy. Three units connected with an automatic changeover switch and human operator is handling the system. Together with the failure in super priority, priority and ordinary unit, the other important failures like deliberate failure and switch failure have been considered for study of mathematical model. All failure rates are assumed constant and follow exponential distribution however, the repair rate for partially failed state follow general distribution and complete failed states are repaired using Gumbel-Hougaard family copula (a joint probability distribution of general distribution and negative exponential distribution). The system is analysed using supplementary variable technique and Laplace transform. The various popular measures of reliability such as availability, reliability, mean time to failure (MTTF) and profit function has been calculated for particular values of failure and repair rates. Sensitivity analysis for different traditional measures has also been done. Computed results have been highlighted by tables and graphs.

Suggested Citation

  • V.V. Singh & Hamisu I. Ayagi, 2018. "Stochastic analysis of a complex system under preemptive resume repair policy using Gumbel-Hougaard family copula," International Journal of Mathematics in Operational Research, Inderscience Enterprises Ltd, vol. 12(2), pages 273-291.
    • Handle: RePEc:ids:ijmore:v:12:y:2018:i:2:p:273-291
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