Yingzhong Zhang

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Modern feature-based CAD system can represent design intent with construction history, feature, parameterization and constraints. Until recently, standards for CAD data exchange among different CAD system were restrict to the exchange of pure geometrical information. This paper discusses the contents, formalization and characteristics of design intent of(More)
Hexahedral meshing needs performing volume decomposition that decomposes a complex shape into simple hex meshable sub-domains, which is a very time-consuming and experience needed work. It is necessary to research and develop intelligent swept volume decomposition approaches. The fundamental work of the volume decomposition approaches based on(More)
The design meta-intent information is a kind of information about design rationale for design intent objects such as features, parameters and constraints. Based on the design meta-intent representation model this paper explores an ontology-based semantic query and reasoning method for design meta-intent information. A Jena-based semantic query process(More)
In order to make the semantic information of feature be shared and understood by computer, this paper discuses and analysis the semantic information of features, presents a semantic concept of feature. Based on description logic representations for semantic concepts of features and hierarchy structures are given. Based on the description logical reasoning(More)
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