Production control for tandem two-machine system

被引：0

作者：

Van Ryzin, Garrett ^{[1
]}

Lou, Sheldon X.C. ^{[1
]}

Gershwin, Stanley B. ^{[1
]}

机构：

[1] Massachusetts Inst of Technology

来源：

IIE Transactions (Institute of Industrial Engineers) | 1993年 / 25卷 / 05期

关键词：

Algorithms - Cascade connections - Costs - Numerical methods - Optimal control systems - Public policy - Simulation - Systems analysis;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

We investigate optimal production controls for a tandem two-machine system with an internal buffer and unreliable machines. First, numerical methods are used to generate optimal policies for specific examples. Then, based on these numerical results, an approximate suboptimal control policy is developed that divides the state space into distinct regions and uses only simple hedging-point policies in each region. Algorithms to obtain hedging points are provided. Comparing the approximation to the optimal control for several examples suggests that its decision regions are close to the optimal decision regions for the important case where demand is close to system capacity. In addition, simulation results show that the costs of the two policies are also very close. The results suggest that appropriately constructed hedging-point policies are close to optimal. Extensions to more complicated systems are also discussed.

引用

页码：5 / 20

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