关键词: 多源信息, 三维装配体, 通用设计单元, 频繁子图挖掘, 设计重用

Abstract: To obtain the common reusable information from existing CAD model and reduce the product development cycle,a method to discover common design units in assemblies from three-dimensional assembly models based on attribute similarity analysis was proposed.Aiming at the multi-source input information of assembly models,an adjacent attribute graph was put forward.By using three types of attributes'similarity analysis,the assembly model was further converted into clustered adjacent attribute graphs,which could realize the group and representation of all parts and connection relationships.Through frequent subgraph mining of clustered adjacent attribute graphs,a rapid assembly common design unit discover algorithm and procedures were given.A set of brake products assembly models was used to verify the effectiveness of the proposed method.

Key words: multi source information, three-dimensional assembly model, assembly common design unit, frequent subgraph mining, design reuse