| 面向自顶向下设计的三维特征建模技术研究 |
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| 引用本文： | 吴涛,汤双清,陈卓宁,宾鸿赞.面向自顶向下设计的三维特征建模技术研究[J].华中科技大学学报(自然科学版),2003,31(8):1-3. |
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| 作者姓名： | 吴涛 汤双清 陈卓宁 宾鸿赞 |
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| 作者单位： | 1. 华中科技大学软件学院
2. 华中科技大学机械科学与工程学院 |
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| 摘 要： | 针对现有三维CAD工具在自底向上产品设计建模方面存在的不足，提出了自顶向下的特征建模方法，包括六个层次，即功能层、概念设计层、装配层、零件层、特征层和B-rep层．在概念层设计上，用三维约束系统建立了自顶向下的设计环境，提出了以特征为核心的信息模型解决方案，形成了一套完整的特征造型系统．运用面向对象的分析、设计方法，初步实现了一套面向自顶向下设计过程的三维CAD原型系统．
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| 关 键 词： | 产品设计 自顶向下 自底向上 布局设计 特征建模 |
| 文章编号： | 1671-4512(2003)08-0001-03 |
| 修稿时间： | 2003年2月25日 |
Top-down design process oriented 3D feature modeling |
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| Wu Tao Tang Shuangqing Chen Zhuoning Bin Hongzan Wu Tao Dr., Software College,Huazhong Univ. of Sci. & Tech.,Wuhan ,China..Top-down design process oriented 3D feature modeling[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2003,31(8):1-3. |
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| Authors: | Wu Tao Tang Shuangqing Chen Zhuoning Bin Hongzan Wu Tao Dr Software College Huazhong Univ of Sci & Tech Wuhan China |
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| Institution: | Wu Tao Tang Shuangqing Chen Zhuoning Bin Hongzan Wu Tao Dr., Software College,Huazhong Univ. of Sci. & Tech.,Wuhan 430074,China. |
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| Abstract: | Aimed at the drawbacks of bottom up product design process in traditional 3D CAD tools, a top down 3D Feature Modeling method was presented. This method can be outlined as six layers like function, concept, assembly, part, feature and boundary representation. In the conceptual layer, 3D geometric constraints were used to implement a top down design environment and a feature based information model was presented to form the integrity of the feature modeling system. The design process oriented 3D CAD tool prototype was implemented through the object oriented analysis and design method. |
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| Keywords: | product design top down bottom up layout design feature modeling |
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