需求不确定电子供应链的鲁棒运作模型

建立了由多个供应商、多个顾客构成的电子供应链在顾客需求不确定情况下的单目标鲁棒运作模型.供应链中,每个供应商均可以通过电子市场或直接将自己生产的多个产品供应给具有不确定需求的多个顾客,供应链追求整体运作成本最小化.采用已知概率的情景集合描述顾客的不确定需求,利用基于情景分析的鲁棒优化方法建立供应链的运作模型.为了检验所建模型的鲁棒性及运作目标的数目对建模方法有效性的影响,利用已有文献的相关数据进行了仿真计算,并对两者的计算结果进行了比较.结果表明,在不确定需求的扰动下,供应链的运作模型确实具有鲁棒性,而且运作目标的多少对建模方法的有效性没有影响.

Robust Operation Model for Electronic Supply Chain with Uncertain Demands

A single-objective robust operation model is proposed for an electronic supply chain that consists of multiple suppliers and customers with uncertain demands,in which every supplier can directly supply its products to the customers with uncertain demands or supply them through electronic marketplace.What the supply chain operation pursues is to minimize the total system cost.Uncertain demands are expressed as a scenario set with given probability,and the supply chain operation model is thus developed by using the robust optimization based on scenario(analysis.) To verify the robustness of the model and the effect of the number of operation objectives on the validity of the modelling process,a numerical example is performed using the data as shown in earlier works.The results showed that the model proposed is robust to uncertain demands and the number of operation objectives has no effect on the validity of the modelling process.