基于JITD的服务备件二级分销网络集成研究

从供应链集成的角度出发,使用双层规划建立了服务备件二级分销网络的设施选址-运输路线安排-库存控制问题(CLRIP)模型,确定了分销中心的位置、车辆的运输路线等。该模型充分考虑决策部门和顾客双方的利益,针对服务备件的价值高以及服务水平要求高的特点,将按需拉动的准时制配送策略(JITD)应用于分销网络设计中,在降低系统成本的同时,可以大幅度提高配送的准时性和稳定性。设计了该模型的启发式算法,通过算例验证了模型和算法的有效性。研究结果有助于优化服务备件分销网络结构、提高配送准时性和降低物流成本。

Study on Inventory Cost Control under JIT System

Traditional inventory control methods generally emphasize minimizing costs. Under current thinking, we not only consider cost control, but also tie inventory management directly into production scheduling. This system, called ＂Just-in-Time delivery＂, is based on having inventory arrive at the factory door just as it is needed on the assembly line. This inventory management technique of essential zero raw material inventory speeds inventory turnover rate and greatly reduces holding cost. This paper analyzes and compares all aspects related to both traditional and JIT systems, and explores ways of reducing inventory costs. The result is the elimination of waste, the speed-up of inventory turnover and the increase in productivity, all with the objective of maximizing profitability. Using advanced logistics （physical distribution methods） will enhance the business image, strengthen international competitive ability and contribute greatly to increase gross domestic product.

JITD确定需求单级物流分销网络ILRIP

引入了JITD思想,对分销网络中的总库存进行统一集成运作,考虑了配送的准时性和稳定性,并从物流系统集成的高度出发,研究建立了确定需求下多设施多顾客的集成设施选址——运输路线安排——库存控制问题(ILRIP)模型,设计了一个两层粒子群优化(PSO)算法,并给出了计算实例。研究结果有助于优化物流分销网络结构,提高顾客服务水平以及交期可靠度、降低成本。