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基于特征实体模型上的截面轮廓自动特征识别方法 被引量:7
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作者 宋长新 马克 王波 《计算机集成制造系统-CIMS》 EI CSCD 北大核心 2002年第8期664-668,共5页
复杂零件特征实体上的相交特征自动识别问题 ,仍是CAD/CAPP领域未解决的难点。本文提出了基于特征实体模型上的截面轮廓造型自动特征识别方法 ,并制定了一系列各类特征的合理识别规则和识别算法。这种方法探索了一条实现自动特征识别的... 复杂零件特征实体上的相交特征自动识别问题 ,仍是CAD/CAPP领域未解决的难点。本文提出了基于特征实体模型上的截面轮廓造型自动特征识别方法 ,并制定了一系列各类特征的合理识别规则和识别算法。这种方法探索了一条实现自动特征识别的新途径 ,实现了对复杂箱体类零件的加工特征自动识别与信息自动提取 ,从而实现了CAD/CAPP系统的信息自动传递。 展开更多
关键词 特征实体模型 截面轮廓 自动特征识别方法 信息提取 CAD CAPP
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基于特征的全自动洗衣机结构参数化设计
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作者 陈祥林 张红兵 虞文杰 《机电产品开发与创新》 2003年第5期30-31,共2页
本文以全自动洗衣机为研究对象,按功能特征分类建立参数化的特征实体模型,为实现总体结构参数化、优化设计打下基础,并对I-DEAS软件在应用过程中出现的问题作了分析。
关键词 全自动洗衣机 参数化设计 结构设计 I-DEAS软件 特征实体模型
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Feature-based multiresolution techniques for product design
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作者 LEE Sang Hun LEE Kunwoo 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2006年第9期1535-1543,共9页
3D computer-aided design (CAD) systems based on feature-based solid modelling technique have been widely spread and used for product design. However, when part models associated with features are used in various downs... 3D computer-aided design (CAD) systems based on feature-based solid modelling technique have been widely spread and used for product design. However, when part models associated with features are used in various downstream applications, simplified models in various levels of detail (LODs) are frequently more desirable than the full details of the parts. In particular, the need for feature-based multiresolution representation of a solid model representing an object at multiple LODs in the feature unit is increasing for engineering tasks. One challenge is to generate valid models at various LODs after an arbitrary rearrangement of features using a certain LOD criterion, because composite Boolean operations consisting of union and subtraction are not commutative. The other challenges are to devise proper topological framework for multiresolution representation, to suggest more reasonable LOD criteria, and to extend applications. This paper surveys the recent research on these issues. 展开更多
关键词 MULTIRESOLUTION Level of detail (LOD) FEATURE SOLID NON-MANIFOLD
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