关键词: 机械产品, 质量特性, 重要度, 排序, 模糊层次分析法, 信息熵

Abstract: Aiming at the complexity of importance sorting for multiple quality characteristics of mechanical product, the fuzzy comprehensive method based on Fuzzy Analytical Hierarchy Process (FAHP) and information entropy was presented. Therefore, the subjective and ambiguous problems existing in the computational process of conventional methods was solved effectively. Fuzzy theory and FAHP were introduced to establish the importance sorting model for multiple quality characteristics. Then, the subjective weights were computed by the method of fuzzy comparison which was expressed by the triangular fuzzy number, while the objective weights of the quality characteristics were obtained by Information entropy. In addition, the importance of multiple quality characteristics was sorted by fuzzy Borda method combining with FAHP and Information Entropy, and finally determined according to the value of fuzzy Borda. The rationality and feasibility of this synthesis method was illustrated by a practical example.

Key words: mechanical product, quality characteristics, importance, sorting, fuzzy analytical hierarchy process, information entropy