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An Integrated Strategy for a Production Planning and Warehouse Layout Problem: Modeling and Solution Approaches

机译:生产计划和仓库布局问题的综合策略:建模和解决方案方法

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摘要

We study a real-world production warehousing case, where the company always faces the challenge to find available space for their products and to manage the items in the warehouse. To resolve the problem, an integrated strategy that combines warehouse layout with the capacitated lot-sizing problem is presented, which have been traditionally treated separately in the existing literature. We develop a mixed integer linear programming model to formulate the integrated optimization problem with the objective of minimizing the total cost of production and warehouse operations. The problem with real data is a large-scale instance that is beyond the capability of optimization solvers. A novel Lagrangian relax-and-fix heuristic approach and its variants are proposed to solve the large-scale problem. The preliminary numerical results from the heuristic approaches are reported.
机译:我们研究了一个实际的生产仓储案例,在该案例中,公司始终面临着寻找产品可用空间并管理仓库中物品的挑战。为了解决该问题,提出了一种将仓库布局与容量大的批量问题结合起来的集成策略,在现有文献中传统上将它们分开处理。我们开发了一个混合整数线性规划模型来制定集成优化问题,以最小化生产和仓库运营的总成本为目标。实际数据的问题是大型实例,超出了优化求解器的能力。提出了一种新颖的拉格朗日松弛固定启发式方法及其变体来解决大规模问题。报告了启发式方法的初步数值结果。

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