关键词: 田口方法, 稳健优化设计, 不确定性, 复杂装备

Abstract: The multi-quality characteristics conflict of compliant complex equipment robust design under the design parameter uncertainty is a difficult engineering problem in early quality design stage.To solve the difficult engineering problem,based on Taguchi method,the multi-quality characteristics robust optimization design Gray-Fuzzy-Taguchi method by combining with grey system and fuzzy inference system was proposed under uncertain conditions.Based on orthogonal experimental design and finite element method,the multi-quality characteristics of Signal Noise Ratio (SNR) were obtained respectively.The gray correlation sequence was used for transforming multi-quality characteristics of SNR into gray correlation coefficients,and the fuzzy inference system was adapted to transform multi-quality characteristics gray relational sequence into Multiple Performance Characteristic Index (MPCI) to deal with the fuzzy uncertainty in the early design phase.The case study results showed that the proposed method could effectively address the problem of compliant complex equipment multi-quality characteristics conflict in real word.

Key words: Taguchi method, robust design optimization, uncertainty, complex equipment