An Age Based Maintenance Policy Model for Unavailability Analysis of Dormant Systems

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27240%2F19%3A10243598" target="_blank" >RIV/61989100:27240/19:10243598 - isvavai.cz</a>

Výsledek na webu

<a href="https://ieeexplore.ieee.org/document/8813316" target="_blank" >https://ieeexplore.ieee.org/document/8813316</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/DT.2019.8813316" target="_blank" >10.1109/DT.2019.8813316</a>

Jazyk výsledku

angličtina

Název v původním jazyce

An Age Based Maintenance Policy Model for Unavailability Analysis of Dormant Systems

Popis výsledku v původním jazyce

Repairable systems with latent failures are systems where special inspections are realized regularly, with a fixed period, to reveal a failure. If a failure is revealed, the renewal procedure is started at the earliest possible inspection time. Maintenance policies for such systems can be categorized into two main classes: age based and calendar based policies. In the age based policy we suppose that maintenance actions are realized at a given time interval starting from the latest time of maintenance, whereas in the calendar based policy, the system inspections and maintenance are realized periodically at planned times known in advance. In the age based policy, real calendar time of maintenance actions is unknown in advance, due to random times of failures and random times necessary for restorations. Relevant issue of the paper is to formulate reliability mathematics describing the time based maintenance policy model, here denoted as Model III. The paper results from innovative stochastic reliability models, recently developed and used for unavailability quantification of repairable and maintained systems with latent failures. Models are transformed into numerical codes to be demonstrated on both a referenced simple system with the Weibull ageing and real complex system from practice. For the reason of system unavailability analyses, the directed acyclic graph was used in this study, which showed to be a suitable system representation of complex systems. (C) 2019 IEEE.

Název v anglickém jazyce

An Age Based Maintenance Policy Model for Unavailability Analysis of Dormant Systems

Popis výsledku anglicky

Repairable systems with latent failures are systems where special inspections are realized regularly, with a fixed period, to reveal a failure. If a failure is revealed, the renewal procedure is started at the earliest possible inspection time. Maintenance policies for such systems can be categorized into two main classes: age based and calendar based policies. In the age based policy we suppose that maintenance actions are realized at a given time interval starting from the latest time of maintenance, whereas in the calendar based policy, the system inspections and maintenance are realized periodically at planned times known in advance. In the age based policy, real calendar time of maintenance actions is unknown in advance, due to random times of failures and random times necessary for restorations. Relevant issue of the paper is to formulate reliability mathematics describing the time based maintenance policy model, here denoted as Model III. The paper results from innovative stochastic reliability models, recently developed and used for unavailability quantification of repairable and maintained systems with latent failures. Models are transformed into numerical codes to be demonstrated on both a referenced simple system with the Weibull ageing and real complex system from practice. For the reason of system unavailability analyses, the directed acyclic graph was used in this study, which showed to be a suitable system representation of complex systems. (C) 2019 IEEE.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10103 - Statistics and probability

Projekt

<a href="/cs/project/EF16_019%2F0000867" target="_blank" >EF16_019/0000867: Centrum výzkumu pokročilých mechatronických systémů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of the International Conference on Information and Digital Technologies 2019, IDT 2019

ISBN

978-1-72811-401-9

ISSN

—

e-ISSN

2575-677X

Počet stran výsledku

8

Strana od-do

60-67

Název nakladatele

IEEE

Místo vydání

Piscataway

Místo konání akce

Žilina

Datum konání akce

25. 6. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—