Research on Feature Information Extraction Technology of Complex 3D CAD Assembly Model
To solve the problems of incomplete information extraction and insufficient depth in the process of extracting the assem-bly feature information of complex 3D CAD assembly models,such as aircrafts、large conveyers which have many assembly parts and complex coordination,a method of extracting assembly feature information of complex products was proposed,which took CATIA software as the platform.Component Application Architecture(CAA)is used to develop the function of quick extraction of feature information.Combined with the idea of multi-tree pre-sequence traversal and the depth-first search algorithm,it can completely extract the fit and constraint information of multi-layer nested complex assembly,make full use of the feature informa-tion of complex3D CADassembly model,and more strongly support the assembly process planning.At the same time,the feasibil-ity of this method is verified by taking a civil aircraft wing conveyor as an example.
Assembly ModelCatiaSecondary DevelopmentInformation ExtractionThe Traversal Algorithm of Multi-TreeDepth-First Search
NETL
NSTL
万方数据
