Monograph - 2022
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Monograph Information
Title
Safety and Reliability of Systems and Processes
Summer Safety and Reliability Seminar 2022
Editors
Kołowrocki Krzysztof, Poland
Bogalecka Magdalena, Poland
Dąbrowska Ewa, Poland
Magryta-Mut Beata, Poland
Publisher
Gdynia Maritime University, 2022
ISBN 978-83-7421-421-6 (printed)
e-ISBN 978-83-7421-422-3 (eBook)
DOI: 10.26408/srsp-2022
Language
English
Licence
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Transient behaviour of instantaneous and average availabilities in non-Markovian configuration
TANGUY Christian 
Orange, Châtillon, France, christian.tanguy{at}orange.com
DOI: 10.26408/srsp-2022-13
ABSTRACT: In this work, we calculate the exact instantaneous and average availabilities for a system in which the failure distribution is a gamma distribution with a rational shape parameter a, and the repair time distribution is exponential. Various regimes exist, for which the availabilities may or may not attain values below the asymptotic limit. This is an example of configurations where using the steady-state value may lead to an overoptimistic assessment of the availability of an equipment or system during its mission time.
KEYWORDS: instantaneous availability, average availability, exponential distribution, gamma distribution
To cite this chapter:
Tanguy Ch. 2022. Transient behaviour of instantaneous and average availabilities in non-Markovian configuration. In K. Kołowrocki et al. (Eds.), Safety and Reliability of Systems and Processes, Summer Safety and Reliability Seminar 2022. Gdynia Maritime University, Gdynia, 185-194, doi:10.26408/srsp-2022-13.
