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Analysis of a periodic review inventory control system with perishables having random lifetime

机译:具有具有随机寿命的易变质物品的定期检查库存控制系统的分析

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摘要

We consider an order up to level (T, S) policy for perishable items with random lifetime. We investigate two cases: the first one is the case where excess demand is completely lost and the second one deals with full backorders. Demands arrive according to a Poisson process. The lifetime of each item is assumed to be exponentially distributed and the procurement lead time is constant. We also assume that there is at most one outstanding order at any time. We model this inventory system as a Markov process in which stationary regime can be characterised. This model allows us to get insights on the impact of the model parameters on the overall system performance in terms of costs.
机译:我们考虑了具有易久性的易腐物品的最高订购(T,S)策略。我们调查了两种情况:第一种情况是完全失去了多余的需求,第二种情况是处理全部缺货。需求根据泊松过程到达。假定每个项目的寿命都呈指数分布,并且采购提前期是恒定的。我们还假设任何时候最多有一个未完成的订单。我们将此库存系统建模为可以描述固定制度的马尔可夫过程。该模型使我们能够从成本方面洞悉模型参数对整体系统性能的影响。

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