针对一般灰关联分析中存在的两个不足之处:即权重仅采用专家评判法确定和定性指标采用精确数简单量化,提出了综合主、客观赋权的基于离差最大化的组合赋权方法和定性指标采用梯形模糊数模糊量化的方法。并将该方法用于轴承材料的选择,结果表明该方法使得多属性决策问题更加合理,具有重要的应用推广价值。 Aiming at two disadvantages in the general gray relational analysis, that is, the weight is determined by the expert judgment method and the qualitative index is quantified by the exact number, the combinatorial weighting method based on the maximization of the deviation of the master and the objective weight is proposed And qualitative indicators using trapezoidal fuzzy number fuzzy quantitative method. The method is applied to the selection of bearing materials. The results show that this method makes the problem of multi-attribute decision-making more reasonable and has an important application and promotion value.