周期性需求下多级库存缺货控制模型研究

从一个以区域分销中心(DC)为主导地位且由多个供应商与零售商共同组成的多级库存系统出发,系统在假设DC和零售商都实行连续性盘点的(R,Q)库存控制策略,提前期为常量,零售商需求为正态分布的前提下,采用缺货策略的思想来确定订货临界点及订货批量.并且以确定DC的库存策略为目标,建立了缺货条件下的多级库存控制模型,从而达到有效控制库存的目的.最后,给出了一个算例,说明了该库存控制模型的可行度.

Analysis on Multi-echelon Inventory Delayed Ordering Control Model Based on Seasonal Demand

A multi-echelon inventory system that consists of a DC in central area and lots of retailers and suppliers is considered.To determine the inventory control policy of the DC,a multi-echelon inventory model is required for delayed ordering as a strategy to control the inventory level effectively.It is advocated that the DC and retailers are all controlled by continuous review(R,Q) policies for stock supply in installment;with the constant lead-time for replenishment and retailers when facing to stochastic demands.Under such conditions,the proposed model is developed to determine the reorder points and the ordering quantities for each inventory on the basis of backorder idea.An algorithm example is given to illustrate the possibility of this delayed ordering strategy.