价格不确定供应链的多目标运作鲁棒模型

Multi-objective robust operation model for supply chain with uncertain market prices

建立了由一个制造商和一个供应商构成的多产品、多阶段供应链在原材料和最终产品的市场价格均不确定情况下运作的鲁棒模型。采用区间不确定性描述价格的不确定性。供应链的运作模型为一个多目标规划问题,满足诸如供应链协调运作、所有供应链成员的目标利润尽可能最大、对应于不确定供求价格的决策的鲁棒性等多个相互冲突的目标.数值算例的结果表明,一定范围内的市场价格波动不改变供应链的运作策略,仅对其运作性能产生一定影响,即所提出的模型是鲁棒的。

A robust model is proposed in this paper to deal with the operation for a multi-product, multi-stage supply chain consisting of a supplier and a producer with uncertain raw materials price and final products price. The uncertain market prices are modeled as some continual intervals. The supply chain operation model is constructed as a objective programming problem to satisfy several conflict objectives, such as coordination of supply chain, the maximum profit of all participants, and robustness of decision to uncertain market prices. The result of a numerical example show that fluctuation of market prices within certain scope will reduce the operating performance of supply chain, while the operation strategy is constant. That is, the model we provided is robust.