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Modeling and analysis for determining optimal suppliers under stochastic lead times

机译：在随机提前期下确定最佳供应商的建模和分析

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摘要

The policy of simultaneously splitting replenishment orders among several suppliers has received considerable attention in the last few years and continues to attract the attention of researchers. In this paper, we develop a mathematical model which considers multiple-supplier single-item inventory systems. The item acquisition lead times of suppliers are random variables. Backorder is allowed and shortage cost is charged based on not only per unit in shortage but also per time unit. Continuous review (s,Q) policy has been assumed. When the inventory level depletes to a reorder level, the total order is split among n suppliers. Since the suppliers have different characteristics, the quantity ordered to different suppliers may be different. The problem is to determine the reorder level and quantity ordered to each supplier so that the expected total cost per time unit, including ordering cost, procurement cost, inventory holding cost, and shortage cost, is minimized. We also conduct extensive numerical experiments to show the advantages of our model compared with the models in the literature. According to our extensive experiments, the model developed in this paper is the best model in the literature which considers order splitting for n-supplier inventory systems since it is the nearest model to the real inventory system.
机译：在最近几年中，在多个供应商之间同时分配补货订单的策略受到了相当大的关注，并继续引起研究人员的注意。在本文中，我们建立了一个考虑多供应商单项库存系统的数学模型。供应商的物料采购提前期是随机变量。允许补货，不仅根据短缺的单位，还根据时间单位收取短缺成本。假设采用持续审查（s，Q）策略。当库存水平耗尽到再订购水平时，总订单将分配给n个供应商。由于供应商具有不同的特性，因此订购给不同供应商的数量可能会有所不同。问题是确定重新订购的水平和订购给每个供应商的数量，以便使每个时间单位的预期总成本（包括订购成本，采购成本，库存持有成本和短缺成本）最小化。我们还进行了广泛的数值实验，以显示我们的模型与文献中的模型相比的优势。根据我们广泛的实验，本文开发的模型是文献中考虑n个供应商库存系统的订单拆分的最佳模型，因为它是最接近实际库存系统的模型。

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  • 来源
    《Applied Mathematical Modelling》 |2010年第5期|1311-1328|共18页
  • 作者

    Soheil Abginehchi; Reza Zanjirani Farahani;

  • 作者单位

    CORAL Research Group, Department of Business Studies, Aarhus School of Business, University of Aarhus, Fuglesangs Alle 4, DK-8210 Aarhus V, Denmark;

    Centre for Maritime Studies, National University of Singapore, Singapore Department of Industrial Engineering, Amirkabir University of Technology, Centre for Maritime Studies, 424 Hafez Ave., Tehran, Iran;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    order splitting; inventory; supply chain; multiple sourcing; random lead-time;

    机译：订单拆分;库存;供应链;多种采购;随机提前期;

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