期刊名称：Journal of Modelling and Simulation of Systems
印刷版ISSN：1737-9377
电子版ISSN：1737-9385
出版年度：2010
卷号：1
期号：1
出版社：HyperSciences Publisher
摘要：In this paper, an Harmonic searsh (HS) metaheurestic algorith is used in conjunction with the universal generating function UGF 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. In order to evaluate the performance of the HS algorithm, a Genetic Algorithm (GA) was developped and applied on the same transmission system
