摘要
由于传统CAD系统只提供产品的几何信息,一些非几何信息难以表达,不能为下游活动准备足够多的信息,难以支持设计制造一体化过程.特征识别是将传统CAD系统的几何模型转换为面向应用的特征模型的重要方法.被认为是通往CAD/CAM信息集成的重要途径.本文系统研究各种特征识别方法的特点及其应用,指出特征识别方法的不足和进一步研究的若干问题.
Owing to the traditional CAD systems only supply geometrical informations of product, some non- geometrical informations are dificult to prescut. It cannot provide enough in formations for the downstream activities to support the integrated process of design and manufacture- The characteristic recognition is an important method to transform the geometrical model of the traditional system to the characteristic model of the oriented application- It is considered as an important way leading to CAD/CAM information integration. This paper sysmetically researches features and applications of various methods of characteristic resognition, points out insufficiencies of characteristic recognition and some problems for further researches.
关键词
CAD系统
特征识别
特征模型
CAD systems Charteristio Recognition Charteristic model
