考虑多因素的库存模型及其优化解

Inventory Model and Its Optimal Solution with Several Factors Considerations

在提前期可控、订购成本可减且存在服务水平约束的条件下,研究了有顾客流失的买方成本最小化问题。将订购批量、单位订购成本、安全系数和提前期作为决策变量,分别在提前期需求服从正态分布和分布形式未知的情况下各建立了一套库存决策模型和求解算法,并获得了比Ouyang&Wu(1997)以及Chu et al(2005)更小的系统总成本。

The minimum problem of the buyer＇s total expected cost involving controllable lead time, ordering cost reduction and lost sale with service level constraints was considered. By taking order quantity, ordering cost, safety factor and lead time as decisional variants, the paper presented a set of inventory decision model and algorithm for the normal distribution demand and the distribution-free cases respectively. Finally, the lower total expected costs compared with Ouyang ＆ Wu （1997） and Chu et al（2005） inventory models with a numerical example was shown.