关键词: 创造性解决问题理论, 质量功能配置, 矛盾矩阵, 概念设计

Abstract: To eliminate negative effects caused by derivative problems in the course of product conceptual design, a new method of product conceptual design based on Quality Function Deployment (QFD) and three technical tools of TRIZ (Theory of inventive problem solving) was proposed. The proposed method firstly specified the key parts which were needed to be improved through House of Quality (HOQ) analysis, an improvement by applying TRIZ technical tools and negative-correlation analysis were then suggested to the part, which might improve some product functions while impair others (this is so-called a derivative problem of an improvement). These kinds of derivative problems were then forecasted and their negative effects could be reduced by repetitive applications of QFD and TRIZ technical tools, and the conceptual design process was born with an efficient result. An application case of fully automatic washing machine illustrated availability and efficiency of the method.

Key words: theory of inventive problem solving, quality function deployment, contradiction matrix, conceptual design