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윤원영(Won Young Yun),박다경(Da Kyung Park) 대한산업공학회 2017 대한산업공학회지 Vol.43 No.5
In this paper, we consider an optimization problem in which we determine the maintenance units in modularized systems. The modularized system has a hierarchical structure in design phase and has several modules. Each module also consists of some components. When some components fail, then the system fails and we should maintain correctively the system. We can replace the failed components or the module with the failed components. We want to determine the maintenance units in the modularized system with hierarchical structure. The system availability and total maintenance cost are used as optimization criteria. A genetic algorithm is proposed to find the optimal solutions. Numerical examples are also studied.