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针对属性值为区间粗糙数且权重未知的多属性决策问题,提出了基于相似系数和联系数的多属性决策方法,该方法可以弥补定性分析方法的不足。结合液压泵维修方式选择的实例,在维修策略选择所依据的属性上引入了有关可靠性的维修指标,并同时考虑了经济性、时效性等指标。解决实例的整个运算过程及结果很好地验证了该方法的有效性。对利用模糊数学处理多属性决策问题进行了理论与实践的探索。
Aiming at the multi-attribute decision-making problems whose attribute values are interval rough numbers and the weights are unknown, a multi-attribute decision-making method based on similarity coefficient and connection number is proposed, which can make up for the deficiency of qualitative analysis methods. Combined with the example of hydraulic pump maintenance mode selection, the reliability index was introduced into the attributes based on the selection of maintenance strategy, and at the same time, such indicators as economy and timeliness were taken into account. The whole calculation process and the result of solving the example well verify the effectiveness of the method. The use of fuzzy mathematics to deal with multi-attribute decision-making theory and practice of exploration.