Work

Reliability and Performance Optimization of Multi-Subsystem Systems Using Copula-Based Repair

Year: 2025

Type: article

Abstract: This paper proposes a system made up of four subsystems connected in sequence. The first and third subsystems each have one unit, the second has two, and the fourth has three. Every subsystem operates in parallel and is governed by the K-Out-of-n:G rule. Nonetheless, each subsystem needs at least one operational unit in order for the system to work. While a unit’s failure has an exponential distribution, repair is simulated using a general distribution and a distribution from the Gumbel–Hougaard family of copula. This study’s primary objective is to assess and contrast the system performance while our system is running under these two different repair policies. The problem is solved by combining the supplementary variable technique with Laplace transforms. We use reliability metrics to assess system performance. The second objective of this study is to present a reduction approach plan aimed at improving the overall reliability metrics of our system.

Source: Axioms

DOI: 10.3390/axioms14030163

Authors: Elsayed E. Elshoubary, Taha Radwan, Rasha Abd El-Wahab Attwa

Institutions: Higher Institute of Engineering, Qassim University, Zagazig University

Language: English

Topic: Reliability and Maintenance Optimization

Subfield: Safety, Risk, Reliability and Quality

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,896

Funder: Qassim University