关键词: 功能单元, 结构设计单元, 概念设计, 功能链, 设计结构矩阵, 产品设计

Abstract: Function cells and structure cells were used as the basic operating units in design process to propose a product structure conceptual design method based on cell model.The function cell model and the structure cells which included product cells and part cells were constructed.Through operation on the adjacency matrix of function cells,the coupled function sets as well as their priority relations were obtained,and the function chain for design activity was established.According to the function chain graph,the structural adjacency matrix of function cells-product was built,and a highly abstract design scheme based on product cell combination and function requirement satisfaction was obtained.By taking the function surface as the carrier,the product structural framework was consisted with function surface and its correlation.The extension of product structure could achieve by parameter constraint and structure extension of product framework.A handling robot was used to demonstrate the effectiveness of the proposed method.

Key words: function cell, structure cell, conceptual design, function chain, design structure matrix, product design