特征定义及构成

DEFITION AND CONSTRUCTION OF THE FEATURE

基于特征设计被认为是实现CAD／CAPP／CAM集成系统的关键.文中探讨了特征定义并提出了新的特征定义.分析了特征分类、特征表示、特征约束、特征属性、特征推导和特征集等特征设计中的一些关键问题.

Feafor-based beign is regarded as a key factor achiving CAD/CAPP/CAN interatal syStenL This paper approacheS the definition of featUre, then pasentS a new opinion. It aIso analyas the key issues of featuch as its cbosilication, expression restrithen, attribution, reasoinng and feato sed.