带有模糊参数的电子废弃物逆向物流规划模型

Reverse logistics programming model of electronic wastes with fuzzy parameters

通过对彩色电视、电冰箱、空调、洗衣机、电脑、手机6种电子废弃物的逆向物流网络结构的选择,建立了带有模糊参数的电子废弃物逆向物流规划模型。利用容差法将模糊约束条件清晰化,把模糊规划模型转化为确定型的线性规划模型,利用WinQSB软件对模型求解。结合广西的交通运输发展状况,参照其他地区电子废弃物回收处理成本,计算了不同置信水平下的广西电子废弃物再制造中心、检测中心和填埋场的位置,确定了广西电子废弃物逆向物流网络。研究结果表明:在置信水平分别为0.80、0.90、0.95时,广西电子废弃物逆向物流网络节点的功能没有发生变化,再制造中心的处理量分别为24 532.22、5 089.72、5 368.5 t。

A reverse logistics network structure was established for six kinds of electronic wastes including color TV,refrigerator,air conditioner,washing machine,computer and mobile phone,and the reverse logistics programming model of electronic wastes with fuzzy parameters was built.Tolerance approach was used to make fuzzy constraints clear,the fuzzy programming model was turned into a deterministic linear programming model,and the model was solved by using WinQSB software.Considering Guangxi transportation development situation and the disposal costs of electronic wastes in other regions,the locations of remanufacturing centers,testing centers and landfills in Guangxi were calculated respectively at different confidence levels,and the reverse logistics network of electronic wastes in Guangxi was determined.Analysis result indicates that when confidence levels are 0.80,0.90,0.95 respectively,the node functions of reverse logistics network for electronic wastes in Guangxi remain unchanged,and the processing quantities of remanufacturing centers are 24 532.2,25 089.7,25 368.5 t respectively.5 tabs,4 figs,15 refs.