摘要
为解决在传统计算机辅助设计方法下进行钢结构节点的装配设计中缺乏直观性、灵活性的问题,对钢结构节点的虚拟装配进行了研究。以面向对象的参数化的方法,基于面片进行钢结构部件的三维实体造型;基于面片的拾取保证了面片的交互式获取;基于面片之间的几何约束进行几何变换确定了钢结构部件在装配体中的几何位置。通过程序的开发,实现了高精密度的三维实体造型、交互式的三维操作、可视化的三维视图的结合,表明了此虚拟装配解决方案的可行性。
To solve the shortage of visualization and flexibility in steel structure joints’ assembly design by the traditional computer aided design（CAD） technique,virtual assembly of steel structure joint is analyzed.3-dimension solid modeling of steel structure parts is created based on facets by object-oriented（OO） parameterized method.Interactive acquisition of facets is ensured by the picking technique based on facets.The geometric position of steel structure parts in assembly is fixed by geometric transformation based on geo-metric constraint between facets.By program development,high precision 3-dimension solid modeling,interactive 3-dimension operation and visualization 3-dmenstion view are integrated,and the feasibility of the virtual assemble solution is verified.
出处
《计算机工程与设计》
CSCD
北大核心
2010年第12期2883-2886,共4页
Computer Engineering and Design
基金
湖北省自然科学基金项目(2007ABA296)
关键词
面片
钢结构
虚拟装配
三维实体造型
几何约束
几何变换
facets
steel structure
virtual assembly
3-dimension solid modeling
geometric constraint
geometric transformation
