Analysis of the two-unit cold standby repairable system with damage and repair time dependency via matrix-exponential distributions. Issue 6 (2nd November 2021)

• Record Type: Journal Article
• Authors: Kus, Coskun; Eryilmaz, Serkan
• Is Part Of: Quality technology & quantitative management. Volume 18:Issue 6(2021)
• Page Start: 771
• Page End: 786
• Publication Date: 2021-11-02
• Subjects: Matrix-exponential distribution -- moment estimator -- maximum likelihood estimator -- reliability -- repairable system; Quality control -- Periodicals; Quality control -- Statistical methods -- Periodicals; Industrial management -- Periodicals; Industrial management; Management -- Research -- Methodology -- Periodicals; Qualitative research -- Periodicals; Management; Quality control; Quality control -- Statistical methods; Periodicals; 658.00721
• DOI: 10.1080/16843703.2021.1963089
• Languages: English
• ISSNs: 1684-3703

Abstract

ABSTRACT: In this paper, two-unit standby repairable system is studied via matrix-exponential distributions. The system under concern consists of one active and one standby components, and fails if either a damage size upon the failure of the active component is larger than a repair limit or the repair time of the failed unit exceeds the lifetime of the active unit, whichever happens first. Under the assumption that the damage size and repair time are statistically dependent, the Laplace transform of the system's lifetime is obtained. The Laplace transform is shown to be rational under particular cases, and the reliability evaluation of the system is performed via well-known distributional properties of the matrix-exponential distributions. The problem of estimating the unknown parameters of the operation time and repair time distributions is also discussed based on system's lifetime data.