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Quantifying stochastic dependence of marginal lifetimes of two-component load-sharing parallel systems

  • Tianjin University of Commerce

Research output: Contribution to journalArticlepeer-review

Abstract

System components usually attain marginal lifetimes with stochastic dependence in the context of load-sharing reliability structures. This study deals with the load-sharing parallel systems of two components. We prove that two marginal lifetimes are positively quadrant dependent when component lifetimes have continuous probability distributions, and such a stochastic dependence is upgraded to the total positive of order 2 in the setting of component lifetimes having an exponential distribution. In addition, we discuss how these findings shed light on related results for the load-sharing Ross model, the conditional residual lifetime, and the conditional inactivity time.

Original languageEnglish
Pages (from-to)1-15
Number of pages15
JournalProbability in the Engineering and Informational Sciences
DOIs
StateAccepted/In press - 2026

Keywords

  • decelerating factor
  • increasing failure rate
  • positive quadrant dependent
  • stochastically increasing
  • totally positivity of order 2
  • virtual age

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