多商品多运输方式的煤炭供应链网络均衡

摘要

针对煤炭供应链网络结构特征,在考虑煤炭企业的运输能力和仓储能力固定限制的情况下,建立了煤炭供应链网络均衡模型.通过对煤炭生产商、销售商及需求市场的独立行为以及其相互作用关系分析,利用变分不等式给出网络系统达到均衡状态下的最优条件,进而确定系统中各层决策者之间的煤炭交易量和交易价格.通过数值实例的计算,分析得出物流服务水平影响着供应链网络的均衡关系.%In this paper,a coal supply chain network is addressed,where transport capacity and storage capacity of a coal enterprise are restricted.For such a supply chain network,a supply chain network equilibrium model is established.By analyzing independent decisions of the coal producers,vendors,demand markets,and the effect of their interaction,conditions for achieving an equilibrium state are solved by using the variable inequality theory.Hence,coal trade volume and prices for different decision-makers in the system are determined.Finally,through solving numerical examples,a conclusion is obtained that logistics service level affects the equilibrium relationship of the supply chain network.