基于组合赋权灰色关联法的机床设备优选研究

Research on Optimal Selection of Machine Tool Equipment Based on Combination Weighted Grey Relational Method

考虑到现有的评价方案不够全面,传统的层次分析法(AHP)忽略了评价者本身的模糊性,提出了运用改进的层次分析法从生产周期(T)、生产成本(C)、加工质量(Q)、环境因素(E)和资源消耗(R)五个绿色制造指标进行分析,建立机床设备选择的指标评价体系和初始决策矩阵,并结合熵权法对各项评价指标进行组合赋权,得到各项评价指标的综合权重。采用灰色关联法计算各方案的灰色关联度,并选取灰色关联度最大的机床作为零件加工的最佳机床,并通过阶梯孔加工的实例验证了该方法在优选机床设备中的可行性和优越性。

Considering that the existing evaluation schemes are not comprehensive enough,the traditional analytic hierarchy process (AHP) ignores the fuzziness of the evaluators themselves.An improved analytic hierarchy process (AHP) is proposed to analyze the five green manufacturing indexes of production cycle (T),production cost (C),processing quality (Q),environmental factors (E) and resource consumption (R),and to establish the evaluation index of machine tool equipment selection.The system and the initial decision matrix are combined with the entropy weight method to give weight to each evaluation index,and the comprehensive weight of each evaluation index is obtained.Then,the grey relational degree of each scheme is calculated by the grey relational method,and the machine tool with the greatest grey relational degree is selected as the best machine tool for parts processing.Finally,an example of stepped hole machining is given to demonstrate the feasibility and superiority of this method in optimizing machine tool equipment.