Int. J. Simul. Multisci. Des. Optim.
Volume 5, 2014
|Number of page(s)||7|
|Published online||26 February 2014|
Efficient harmony search optimization for preventive-maintenance-planning for nuclear power systems
University of Djillali Liabes, Faculty of Technology, Sidi Bel Abbes, Algeria
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Accepted: 23 October 2013
This paper combines the universal generating function UGF with harmony search (HSO) meta-heuristic optimization method to solve a preventive maintenance (PM) problem for series-parallel system. In this work, we consider the situation where system and its components have several ranges of performance levels. Such systems are called multi-state systems (MSS). To enhance system availability or (reliability), possible schedule preventive maintenance actions are performed to equipments and affect strongly the effective age. The MSS measure is related to the ability of the system to satisfy the demand. The objective is to develop an algorithm to generate an optimal sequence of maintenance actions providing system working with the desired level of availability or (reliability) during its lifetime with minimal maintenance cost rate. To evaluate the MSS system availability, a fast method based on UGF is suggested. The harmony search approach can be applied as an optimization technique and adapted to this PM optimization problem.
Key words: Universal generating function harmony search / Optimization / Preventive maintenance
© A. Rami et al., Published by EDP Sciences, 2014
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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