基于Ⅱ型模糊集的工程参数的评判

THE ENGINEERING PARAMETER EVALUATION BASED ON Ⅱ-TYPE FUZZY SET

提出了一种基于Ⅱ型模糊集的工程参数模糊综合评判方法。将单因素评判的隶属度和各因素的权数均视为模糊数,应用模糊数的运算规则,建立了相应的模糊综合评判算法。考虑到模糊数运算后展形大大增加的情况,提出了既节省计算又保证精度的展形截断措施。总评判指标的模糊性,以其隶属度为权数进行加权平均处理,从而得到最终的评判结果。并给出了具体算例。

A fuzzy comprehensive evaluation method of engineering parameters based onⅡ -type fuzzy ets is proposed,and the corresponding fuzzy comprehensive evaluation algorithm following the rule of the operation on fuzzy numbers is set up with the consideration of the membership grades evaluated by the single factor and the weights of all sorts of factors as fuzzy numbers. A measure of the cut of the extension with less computation and adequate accuracy is given since the extension will be greatly increased after the operation on fuzzy numbers. The fuzziness of the final evaluation result is obtained with the weighted average method considering its membership grade as weight.