Selection model of performance analysis index system of mechanical and electrical products
                                              FANG Jiqing1, CHEN Chuan1, HUA Ertian1,2
(1.Key Laboratory of Special Equipment and Advanced Processing Technology of Ministry of Education, Zhejiang University of Technology, Hangzhou 310014, China; 2.Zhejiang Provincial Laser Equipment Manufacturing Collaborative Innovation Center, Hangzhou 310014, China)

Abstract: Aiming at the problem of constructing the index system in the function analysis of electromechanical products, the characteristics and correlations of the indicators were studied, an index selection model was constructed, and a selection method of electromechanical products indicators based on clustering and factor analysis was proposed.Firstly, the feature layers were classified according to the attributes of the indicators, and the feature layer of index system was constructed, the indicators with similar information amount were clustered into one category, to ensure that the contained information was not overlapped and can cover all aspects. Then index was selected by factor analysis to ensure that the selected indicators have the greatest impact on the index system. Finally, this model was tested by constructing of index system for performance analysis of cooling fins. The results show that the index selection model reduces the number of indicators to 60%, and includes 95.4% of information, indicating that the method was feasible and effective.

Key words: mechanical and electrical products; comprehensive performance analysis; indicator selection; cluster analysis; factor analysis; cooling fin