Optimal Grouping of Dependent Components in Parallel-Series and Series-Parallel Systems with Independent Subsystems Equipped with Starting Devices

Narayanaswamy Balakrishnan (), Ghobad Saadat Kia (Barmalzan), Aliakbar Hosseinzadeh and Mostafa Sattari
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Narayanaswamy Balakrishnan: Department of Mathematics and Statistics, McMaster University, Hamilton, ON L8S 4L8, Canada
Ghobad Saadat Kia (Barmalzan): Department of Basic Science, Kermanshah University of Technology, Kermanshah 6715685420, Iran
Aliakbar Hosseinzadeh: Department of Mathematics, University of Zabol, Zabol 3585698613, Iran
Mostafa Sattari: Department of Mathematics, University of Zabol, Zabol 3585698613, Iran

Mathematics, 2023, vol. 11, issue 17, 1-19

Abstract: In this paper, we consider parallel-series and series-parallel systems comprising dependent components that are drawn from a heterogeneous population consisting of m different subpopulations, and each subsystem is equipped with a starter device. We also make the assumption that the components within each subpopulation are dependent, while the subsystems themselves are independent. The joint distribution of these subsystems is modeled using an Archimedean copula. Our research considers a general setting in which each subpopulation has a different Archimedean copula for its dependence. By adopting this general setup, we investigate the stochastic, hazard rate, and reversed hazard rate orders between these systems. Furthermore, we provide several numerical examples to demonstrate all the theoretical results established in this study. These results broaden the scope of the known results in the existing literature.

Keywords: archimedean copula; stochastic orders; parallel-series systems; series-parallel systems; starting devices (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2023
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