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首页> 外文期刊>International Journal of Operational Research >An integrated vendor-buyer model with equal shipments, normally distributed demand and empirically distributed lead-time
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An integrated vendor-buyer model with equal shipments, normally distributed demand and empirically distributed lead-time

机译：一个具有平等货物，通常分布的需求和经验分布式带款的综合供应商 - 买方模型

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摘要

This study addresses joint economic lot-sizing (JELS) problem with a vendor and a buyer which replenishes a given product from the vendor. Shipments transferred from the vendor to the buyer are assumed to have equal sizes. In addition, unlike the previous studies, demand and delivery are assumed to be stochastic and following normal and experimental distributions respectively. In the given model, we assume that the combination of the two types of backordered and lost demand can exist. In addition, service level constraint is also considered. The purpose is to find the optimal order values, the number of shipments, reorder point and safety stock. We present a heuristic method in order to reach the decision variables of the model. Numerical examples indicated frugality in chain cost in the integrated model and efficiency in the heuristic method. In addition, the results showed that chain costs increase by increasing delivery time, but the values of reorder point and safety stock depend on the changes in the level of services and they increase as the service level increases.
机译：本研究涉及供应商和买方从供应商提交给定产品的联合经济尺寸（JELS）问题。假设从供应商转移到买方的货物具有相同的尺寸。此外，与先前的研究不同，假设需求和交付分别是随机性的，并且分别跟随正常和实验性分布。在给定的模型中，我们假设可以存在两种类型的延期交货和需求丢失的组合。此外，还考虑了服务级别约束。目的是找到最佳订单价值，出货量，重新排序点和安全股票。我们提出了一种启发式方法，以便到达模型的决策变量。数值例子表明，在启发式方法中的综合模型和效率中的连锁成本中的节俭。此外，结果表明，随着交货时间的增加，链成本增加，但重新排序点和安全股票的价值取决于服务水平的变化，随着服务水平的增加，它们增加。

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