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首页> 外文期刊>International Journal of Production Research >An optimal stocking policy for machining tools with stochastically distributed lifespan and demand
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An optimal stocking policy for machining tools with stochastically distributed lifespan and demand

机译：寿命和需求随机分布的机床的最佳库存策略

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摘要

Traditional procurement policy was deeply investigated for many kinds of demand in different industrial sectors. More extensive explorations on procurement including the combination with manufacturing process and detailed attributes of the purchased products were conducted by many researchers. In manufacturing process, lifespan of machining tools have significant impact on both the quantity of procurement and production cost. In this paper, the impact of maximum allowable stopping time for machining tools on production-inventory policy under a stochastic production demands was investigated. A tool procurement policy with stochastic demand (TPPSD) was developed with which the allowable stopping time for tools and review cycle can be optimally determined by an exhaustive searching algorithm. Examples with different distributions on tool lifespan and production demand are presented to show the implementation of the TPPSD model. The results show that optimised combination of selection for tool allowable stopping time and review cycle time can dramatically minimise the total cost of the whole procurement activity.
机译：针对不同行业的多种需求，对传统的采购政策进行了深入研究。许多研究人员对采购进行了更广泛的探索，包括与制造过程的结合以及所购买产品的详细属性。在制造过程中，机床的使用寿命对采购量和生产成本都有重大影响。本文研究了随机生产需求下加工刀具最大允许停机时间对生产库存策略的影响。制定了具有随机需求的工具采购策略（TPPSD），利用该策略可以通过穷举搜索算法最佳地确定工具的允许停止时间和检查周期。给出了具有不同工具寿命和生产需求分布的示例，以展示TPPSD模型的实现。结果表明，刀具允许的停止时间和评审周期时间的选择优化组合可以极大地降低整个采购活动的总成本。

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