In order to improve the assemblability and reduce the cost of the parts, the material requirements can be applied to the toleranced feature and the datum feature of the coaxiality at the same time in the practical application. How to realize the information exchange between different heterogeneous systems and how to read and explain the semantics of this complex tolerance specification automatically is one of the urgent problems to be solved in intelligent digital manufacturing. Ontology described in OWL2 DL and SWRL language has strict mathematical basis of description logic, and the knowledge represented by it has clear semantics and can be read and understood directly by computer. In addition, because of its consistency checking, knowledge reasoning, and flexible query ability, it becomes the most potential knowledge representation technology in the future. On the other hand, the semantic interpretation of tolerance specification by the new generation GPS theory based on skin model has the advantages of clear semantics, no ambiguity, and consistency at different stages of the product life cycle. In this article, the enhanced semantic representation ontology for this kind of coaxiality tolerance specification is constructed based on the advantages of the new GPS theory and ontology technology and the effectiveness of the method is verified and analyzed through a case.

中文翻译：

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具有双重材料要求的同轴度的增强语义表示

为提高零件的可装配性，降低零件成本，在实际应用中，可将材料要求同时应用于同轴度的公差特征和基准特征。如何实现不同异构系统之间的信息交换，以及如何自动读取和解释这个复杂公差规范的语义，是智能数字化制造亟待解决的问题之一。OWL2 DL和SWRL语言描述的本体具有严格的描述逻辑数学基础，其所代表的知识语义清晰，可以直接被计算机读取和理解。此外，由于其一致性检查、知识推理和灵活查询能力，成为未来最具潜力的知识表示技术。另一方面，基于皮肤模型的新一代GPS理论对公差规范的语义解释具有语义清晰、无歧义、产品生命周期不同阶段一致性等优点。本文基于新的GPS理论和本体技术的优势，构建了这种同轴度公差规范的增强语义表示本体，并通过一个案例验证和分析了该方法的有效性。