Ontology-based feature mapping and verification between CAD systems

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• 作者：Sean Tessier ; Yan Wang ; ^{yan.wang@me.gatech.edu}
• 关键词：Computer-aided design ; Feature ; Interoperability ; Ontology Web Language ; Semantic Web Rule Language
• 刊名：Advanced Engineering Informatics
• 出版年：2013
• 出版时间：January, 2013
• 年：2013
• 卷：27
• 期：1
• 页码：76-92
• 全文大小：2645 K

文摘

Data interoperability between computer-aided design (CAD) systems remains a major obstacle in the information integration and exchange in a collaborative engineering environment. The use of CAD data exchange standards causes the loss of design intent such as construction history, features, parameters, and constraints, whereas existing research on feature-based data exchange only focuses on class-level feature definitions and does not support instance-level verification, which causes ambiguity in data exchange. In this paper, a hybrid ontology approach is proposed to allow for the full exchange of both feature definition semantics and geometric construction data. A shared base ontology is used to convey the most fundamental elements of CAD systems for geometry and topology, which is to both maximize flexibility and minimize information loss. A three-branch hybrid CAD feature model that includes feature operation information at the boundary representation level is constructed. Instance-level feature information in the form of the base ontology is then translated to local ontologies of individual CAD systems during the rule-based mapping and verification process. A combination of the Ontology Web Language (OWL) and Semantic Web Rule Language (SWRL) is used to represent feature classes and properties and automatically classify them by a reasoner in the target system, which requires no knowledge about the source system.