关键词: 概念设计, 知识驱动, 复杂网络, 设计结构矩阵, 产品设计, 汽车发动机

Abstract: To effectively organize and utilize design knowledge to drive product innovative design process,and to improve the generating rate of designers'innovative solutions in the stage of conceptual design,a method of design knowledge network construction and analysis based on complex network was proposed.A complex network model of design knowledge was built according to the application features of design knowledge in innovative solution-seeking process and the many-to-many mapping relationships among three knowledge levels of function,behavior and structure.On this basis,network key characteristic parameters were calculated and analyzed,network topology features were excavated and the importance of knowledge nodes was evaluated.In addition,knowledge components were divided based on relationships among knowledge,an expanded and ordered scheme universe for designers were provided.To achieve the incentives for product conceptual design,the design operation of variety,adaptation and originality for product scheme space was drove.An improved design of engine was taken as an example to demonstrate the engine design knowledge driving process with complex network in the conceptual design,and the effectiveness was verified.

Key words: conceptual design, knowledge driven, complex network, design structure matrix, product design, automobile engines