关键词: 三维注释模型, 三维解释模型, 三维模型知识标注, 发动机燃油喷头, 知识管理

Abstract: To extend the scope and application of 3D models,annotating engineering knowledge to 3D model had become a trend.On the basis of defining Model Based Definition (MBD) data set as 3D annotation model,the concept of 3D elucidation model was put forward.Through the discussion on engineering knowledge classification,organization and storage technology,3D model knowledge annotation method was proposed which used to construct 3D elucidation model.In this method,the heterogeneous knowledge was represented and processed with vector space model,and the intention knowledge was taken as the input to realize the semiautomatic 3D model knowledge annotation.Through the development and implementation of prototype system,3D model knowledge annotation method was demonstrated by the example of engine fuel injector,which proved the validity of the proposed method.

Key words: 3D annotation model, 3D elucidation model, 3D model knowledge annotation, engine fuel injector, knowledge management