关键词: 产品设计, 配置方案, 灰色关联, 权重顺序交叉, 配置重构

Abstract: To improve the quality of configuration design for complex products,a reconstruction method based on Grey Relational Analysis (GRA) and preordered cross was proposed.According to initial configuration,the alternative scheme sets and fuzzy evaluated product schemes were obtained,and their gray coefficients were calculated.Aiming at the complete unknown weight,the multi-objective mathematical model was constructed,and the weight factors of each module were solved.After sorting the schemes of configuration design with help of possibility theory,the optimum scheme for further configuration was selected and the modules that constituted these schemes were encoded.To realize reconstruction of product schemes and to produce new configuration schemes,the cross construction method was used.With this method,the cross frequency and the cross order were confirmed,and the initial with new solutions were mixed to select the optimum one to match customer's demands.The proposed method was applied to the configuration design of advanced CNC machine,and the quality of product configuration was effectively improved with advantage of preordered-cross and reconstruction technology.

Key words: product design, configuration scheme, grey relational analysis, weighted sequence cross, scheme reconstruction