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arXiv 2203.17033math.OC
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柔性生产物流计划的随机变量最优化模型

An optimization model with stochastic variables for flexible production logistics planning

Yongkuk Jeong, Gianpiero Canessa, Erik Flores-García, Tarun Kumar Agrawal, Magnus Wiktorsson

摘要:

生产物流作为连接生产系统各组成部分的链条具有重要作用。生产物流计划的最重要目标是保持生产系统的良好流动。然而,相对于生产系统,生产物流系统的规划、管理和数字化水平还不够高,因此当生产物流系统出现突发情况时,很难灵活应对。优化算法和启发式算法已经被提出来解决这个问题,但由于其不灵活的性质,它们只能在有限的环境中获得所需的解决方案。分析了生产与生产物流系统之间的关系,引入随机变量,通过修正有时间窗的装卸货问题(PDPTW)最优化模型,建立了柔性生产物流计划。该模型考虑了随机变量,为调度员提供了一个新的视角,使他们能够基于数学模型获得新的见解。然而,由于最优化模型仍然不足以响应动态环境,因此未来的研究将涵盖如何即使在动态环境中(如机器学习模型)也能得出有意义的结果。

英文摘要:

Production logistics has an important role as a chain that connects the components of the production system. The most important goal of production logistics plans is to keep the flow of the production system well. However, compared to the production system, the level of planning, management, and digitalization of the production logistics system is not high enough, so it is difficult to respond flexibly when unexpected situations occur in the production logistics system. Optimization and heuristic algorithms have been proposed to solve this problem, but due to their inflexible nature, they can only achieve the desired solution in a limited environment. In this paper, the relationship between the production and production logistics system is analyzed and stochastic variables are introduced by modifying the pickup and delivery problem with time windows (PDPTW) optimization model to establish a flexible production logistics plan. This model, taking into account stochastic variables, gives the scheduler a new perspective, allowing them to have new insights based on the mathematical model. However, since the optimization model is still insufficient to respond to the dynamic environment, future research will cover how to derive meaningful results even in a dynamic environment such as a machine learning model.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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