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[학술저널]

  • 학술저널

Soochan Kim(KMA) Namsu Ahn(KMA)

DOI : 10.7232/iems.2021.20.1.61

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초록

Reliability is defined as the ability of a system to provide the required functionality for a specified period in a given environment. Since designing a system structure to achieve target reliability arises in many industrial areas, there are various reliability optimization applications. In this research, we discuss one of the reliability optimization problems, that is, placement of components is a series structure, there are alternatives for the component that can be selected, achieving target reliability is a requirement, and an objective is a cost minimization. An optimal algorithm is designed to obtain the optimal solution to the problem, and a simple greedy heuristic is developed to accelerate the convergence speed of the optimal algorithm. Four data sets from the previous research were used to show the performance of the algorithm and our optimal algorithm could obtain the solution in a second. Considering the algorithm performance, our algorithm can be used to address the real-size instances in many industries. Also, we can observe that the convergence speed to an optimal solution depends on the generated bound from the feasible solution of the heuristic.

목차

ABSTRACT
1. INTRODUCTION
2. MATHEMATICAL FORMULATION
3. OPTIMAL AND HEURISTIC ALGORITHMS
4. COMPUTATIONAL RESULTS
5. CONCLUSIONS AND FUTURE WORKS
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