产品信息模型中形状特征的表达研究  

Research on Representation Scheme of Form Feature in Feature based Product Model

作　　者：高兆法[1] 欧宗瑛[1] 

机构地区：[1]大连理工大学

出　　处：《组合机床与自动化加工技术》1999年第8期4-7,共4页Modular Machine Tool & Automatic Manufacturing Technique

摘　　要：提出了一种有效的形状特征的表达方案，引入了特征依赖树表达零件特征之间的关系，采用 Ｂ Ｒｅｐ 结构表达低层几何信息，每个特征中包含单个特征 Ｂ Ｒｅｐ 结构的表达，通过拼合或局部操作可得到整个零件的 Ｂ ＲｅｐA representation scheme of form feature in feature based product model is presented.Parts are represented by a higher level structure,called a feature dependency tree,in which featurerelation structure links the form feature.Each form feature has B Rep model to represent its volume,and with boolean set operation,the B Rep represention can be gained.

关 键 词：特征建模 CAD CAM 形状特征 产品信息模型 

分 类 号：TH166[机械工程—机械制造及自动化] TP391.7[自动化与计算机技术—计算机应用技术]