一种面向制造企业的供应商优选方法

摘要

针对制造企业的零件供应商选择问题,提出一种用模糊粗糙方法来计算指标值,用熵权来计算指标权重的优选方法.将评价指标分为质量、供应、经济、合作和环境5项,构造了一种模糊粗糙方法;用梯形模糊数来表示专家评分,通过粗糙近界区间来计算供应商在评价指标上的取值;采用熵权法来实现评价指标的自适应赋权;最后使用Kullback-Leibler散度替代欧氏距离的改进逼近理想解排序(Technique for Order Preference by Similarity to an Ideal Solution,TOPSIS)来对供应商的加权指标值向量进行排序.通过一个企业应用实例验证了该方法的正确性和可行性.%To solve the component supplier selection problem of manufacturing enterprises,a selection optimization approach is proposed.Firstly the evaluation index is divided into quality factor,supply performance factor,economic factor,cooperation factor and environmental effect factor.Secondly a fuzzy-rough method is constructed by using trapezoidal fuzzy number to represent the expert score and using rough number and rough boundary interval to calculate the index value of suppliers.Then entropy method is used to achieve the adaptive weighting of evaluation index,and the improved TOPSIS replaced Euclidean distance by Kullback-Leibler divergence is finally used to sort the weighted index values of suppliers lastly.An enterprise application example is given to illustrate the correctness and feasibility of the proposed method.