Research on method of constraint conversion in feature-based data exchange between heterogeneous CAD systems

Data exchange between heterogeneous CAD systems is the key problem in the field of CAD, and the popular solution to this problem is a feature-based method. Aiming at keeping the consistency of design intent in data exchange between heterogeneous CAD systems, this research focuses on the method of constraint conversion. First, two kinds of basic feature transformation ways are summarized, and this is the foundation of constraint conversion. Second, a novel identification of geometric elements based on the improved geometric certificate is proposed, and the identifier of geometric element is used to recognize the acting object of constraint. Third, the principles of constraint conversion are put forward, and the method of constraint conversion for a single feature is proposed according to the principles. Fourth, an algorithm of constraint conversion for the whole process of CAD data exchange is designed. Finally, the contrast experiment of CAD data exchange is completed, and the result of the experiment shows that the approach mentioned above is effective. This paper was recommended for publication in revised form by Associate Editor Dae-Eun Kim Sun Wei is a professor and the deputy dean of school of mechanical engineering at Dalian University of Technology. His research interests include knowledge-based product digital design, computer supported collaborative design, analysis and optimization of product. He received a BS, a MS and a Ph.D in mechanical manufacturing and automation from Dalian University of Technology, P. R. China. Ma Tie-Qiang is a Ph.D. candidate in school of mechanical engineering at the Dalian University of Technology. He received a BS and a MS from Dalian JiaoTong University P. R. China. His research interests include computer graphics & computer aided design, product data management, computer supported collaborative design. Huang Yu-Jun is a graduate in School of mechanical engineering at the Dalian University of Technology. He received a BS from Wuhan University of Science and Technology P.R. China. His research interests include product data exchange and computer graphics     

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CAD/CAM集成系统中的特征分类与描述方法研究

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CBR技术及其在CAD中的应用

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A two-step feature selection method for monitoring tool wear and its application to the coroning process

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A method for spatio-temporal (4-D) data representation in confocal microscopy: application to neuroanatomical plasticity

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累积法的基本原理及其在测量数据处理中的应用

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改进的CAD技术在机械工艺设计中的应用

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VB与Auto CAD间的数据交换及其在齿轮传动中的应用

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统一产品信息建模技术研究及在CAD/CAPP集成中的应用

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机械CAD/CAM应用中的仿真技术

系统地阐述了机械产品设计和制造过程中CAD/CAM系统的作用和应用方法,介绍了三维造型技术的类型以及设计原理。