Availability analysis of a two dissimilar-unit deteriorating standby system with inspection

Mokaddis, G.S.; Labib, S.W.; El-Said, Kh.M.

doi:10.1016/0026-2714(93)90005-j

Cited by 1 publication

(1 citation statement)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Mokaddis et al (1993) used Markov renewal process to analyze a system with a deteriorating cold standby unit where failed components are found only after an inspection. Mokaddis et al (1997) applied semi-Markov process to analyze a cold standby system where inspection is required to decide whether failed components need minor repair or major repair.…”

Section: Introductionmentioning

confidence: 99%

The establishment of the time interval between inspections for a cold standby system with component repair

Mendes

Ribeiro

2017

Prod.

View full text Add to dashboard Cite

The time interval between inspections of cold standby systems is a crucial decision to ensure the appropriated system reliability and the lowest costs possible. This paper presents a model developed to establish the optimal time interval between inspections for a two-unit cold standby system with component repair and subject to periodic inspection, considering reliability and costs. A Markov chain is used to define possible states, their transition probabilities and the mean time to system failure, as a function of the time interval between inspections. Given the mean time to system failure, the steady state availability is determined. Finally, the costs related to the system maintenance are established and a cost function is developed and optimized for the time interval between inspections. Numerical examples are presented and results for different system parameters are compared. Besides optimizing the time interval between inspections, the analyses also reveal the effect of repair time on system availability and mean time to system failure.

show abstract

Section: Introductionmentioning

confidence: 99%