连锁零售企业物流配送系统联合决策模型研究

Research on the joint decision model for logistic distribution system of chain retailing enterprise

研究了需求不确定下由一个区域配送中心、多个城市配送中心及多个零售门店构成的连锁零售企业物流配送系统优化模型,分别建立了零售门店选址和物流配送网络设计的独立决策模型及相应的联合决策模型.给出了各独立决策模型的求解方法,并构造基于拉格朗日松弛法和次梯度算法的协调机制来实现联合决策.最后,通过算例表明联合决策模型及协调机制的有效性.

The logistic distribution system optimal model of a chain retailing enterprise composed of one region distribution center, multiple city distribution centers and retailers with demand uncertainty is studied. The independent decision models and joint decision model about retailer location and distribution network design are developed respectively and the corresponding solving methods are given simultaneously. A coordination mechanism based on Lagarangian relaxation and sub-gradient algorithm is eonstructed to realize the joint decision. Finally, the computational results show that the joint decision model and the coordination mechanism are effective and efficient.