Replacement policies for a complex system with unobservable components using dynamic Bayesian networks

DOI

10.1080/18756891.2014.853933How to use a DOI?

Keywords

Maintenace, replacement policy, DBNs, uncertainty modelling, optimization and heuristics

Abstract

We study maintenance of a complex dynamic system consisting of ageing and unobservable components under a predetermined threshold reliability level. Our aim is to construct an optimum replacement policy for the components of the system by minimizing total number of replacements or total replacement cost. We represent the problem with dynamic Bayesian networks (DBNs). We prove that under the existence of a predetermined threshold reliability, performing replacements at periods when the system reliability just falls below the threshold assures optimum replacement times. Four component selection approaches and their cost focused versions are proposed to choose the component to replace and are tested on a complex dynamic problem. Their performances are analyzed under various threshold and cost levels.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - JOUR
AU  - Demet O.
AU  - Taner Bilgiç
PY  - 2014
DA  - 2014/01/01
TI  - Replacement policies for a complex system with unobservable components using dynamic Bayesian networks
JO  - International Journal of Computational Intelligence Systems
SP  - 68
EP  - 83
VL  - 7
IS  - Supplement 1
SN  - 1875-6883
UR  - https://doi.org/10.1080/18756891.2014.853933
DO  - 10.1080/18756891.2014.853933
ID  - O.2014
ER  -