A Feature-based Method for MBD Model Exchange among Heterogeneous CAD Systems

摘要

To solve the problem that missing feature and non-geometric information when MBD (Model Based Definition) model is exchanged among heterogeneous CAD systems, a feature-based heterogeneous MBD model exchange method is proposed considering geometric feature information, non-geometric information and the association between them. Firstly, use a neutral format to express the feature information and non-geometric information of MBD model and the association between them. Secondly, transform the geometric feature information and engineering note information at the same time and maintain the relationship between them through information extraction and reconstruction by using XML (Extensible Markup Language) file as neutral format. Finally, exchange a structural model of a certain type of aircraft between Pro/E and CATIA to verify the validity of the method.