关键词: 设计意图, 产品形态设计, 设计需求, 设计编码, 设计解码, 交互式遗传算法

Abstract: To reduce the cognition difference of product form between users and designers,the design intent in product form design process was divided into design need intent,design encoding intent and design decoding intent,and the design intent model was constructed.A solution algorithm was proposed aiming to meet users'need intent and demonstrate designers'design encoding intent,and reduce decoding and encoding divergence between users and designers.The process of product form design driven by design intent was discussed.Interactive Genetic Algorithms (IGA) was applied to seek an intelligent solution of design intent.The family car face design was taken as an example to verify the effectiveness of the proposed method by researching design need intent acquisition and mapping,design encoding intent expression and design evolution and decoding based on IGA were researched respectively.

Key words: design intent, product form design, design need, design encoding, design decoding, interactive genetic algorithm