需求不确定的分销系统最小成本模型

提出一种分销系统的最小成本模型,这里的产品为单一产品,产品的需求和到达的提前期都是不确定的,且允许缺货·运用该模型研究两个制造商两个分销商组成的分销网络成本优化问题,把分销商满足市场需求时的服务水平作为优化问题的约束条件·综合考虑库存成本、订货成本、运输成本和缺货成本,给出了求解满足约束的最优订货量的算法,最后给出案例

Minimum Cost Model of Distribution Systems Under Demand Uncertainty

Minimum cost models of distribution system were proposed for a single product supply chain. The demand per day and the lead time (composed of fixed ordering process time and uncertain transportation time) were assumed to be stochastic variables. The product shortage was allowed. Cost optimization problems of distribution systems with two manufacturers and two retailers were studied with restricted service level. And customer's demand was met by the retailers. The models synthetically consider holding cost, ordering cost, transportation cost and shortage cost. In order to solve the aforementioned optimization problems, the optimal order quantities that satisfied the constraints were obtained. Finally, a case was given to illustrate the solving process for the models.