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A Heuristic Approach for Determining Lot Sizes and Schedules Using Power-of-Two Policy

机译:使用二次幂策略确定批量和进度的启发式方法

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We consider the problem of determining realistic and easy-to-schedule lot sizes in a multiproduct, multistage manufacturing environment. We concentrate on a specific type of production, namely, flow shop type production. The model developed consists of two parts, lot sizing problem and scheduling problem. In lot sizing problem, we employ binary integer programming and determine reorder intervals for each product using power-of-two policy. In the second part, using the results obtained of the lot sizing problem, we employ mixed integer programming to determine schedules for a multiproduct, multistage case with multiple machines in each stage. Finally, we provide a numerical example and compare the results with similar methods found in practice.
机译:我们考虑在多产品,多阶段制造环境中确定切合实际且易于安排的批量的问题。我们专注于特定类型的生产,即流水车间类型的生产。开发的模型包括两部分,批量确定问题和调度问题。在批量问题中,我们采用二进制整数编程,并使用二次幂策略确定每个产品的重新排序间隔。在第二部分中,使用批次分配问题的结果,我们使用混合整数编程来确定在每个阶段都有多台机器的多产品,多阶段案例的计划。最后,我们提供一个数值示例,并将结果与​​实践中发现的类似方法进行比较。

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