【作者】 徐健腾； 张庆普；

【Author】 XU Jian-Teng,ZHANG Qing-Pu (School of Management,Harbin Institute of Technology,Harbin 150001,China)

【机构】 哈尔滨工业大学管理学院；

【摘要】 本文研究了有限时期内,由一个制造商和一个分销商组成的二级供应链系统下变质产品的最优订购及配送策略。建立了需求率为时间的对数凹函数时,二级供应链系统决策问题的数学模型。目标是要确定使系统总费用最低的决策变量,包括订购次数,订购时间及配送时间。通过分析系统的费用结构,证明了该系统最优策略的存在性及唯一性,并给出求解方法。最后,用算例说明二级供应链系统的最优策略不是两个单级供应链系统最优策略的加总,其差异源于费用结构的本质变化。更多还原

【Abstract】 This paper considers a two-echelon supply chain system consisted of one manufacture and one retailer, the goal of which is to determine the optimal ordering and dispatching policies for a deteriorating item within a finite planning horizon.A mathematical expression of this two-echelon supply chain system is modeled with a log-concave demand function.The objective of this model is to find the optimal total number of ordering,the time to order and the time to dispatch so as to minimize the total cost of the systems.The cost structure of the system is discussed. Furthermore,an approach to find the optimal solution is explored.The numerical example at the end of this paper illustrates the fact that the cost of two-echelon supply chain system is not simply the sum of the cost of two one-echelon supply chain systems,the reason which causes the difference of the optimal policy between oneechelon and two-echelon supply chain systems is the changes of the cost structure.更多还原