设计特征模型中的装配特征识别  

ASSEMBLY FEATURE RECOGNITION BASED ON SHAPE FEATURE-BASED MODEL

作　　者：沈梅[1] 何小朝[2] 张铁昌[1] 

机构地区：[1]西北工业大学CAD/CAM研究中心,陕西西安710072 [2]北京大学计算机科学技术系,北京100871

出　　处：《航空学报》2000年第6期567-570,共4页Acta Aeronautica et Astronautica Sinica

基　　金：航空科学基金!(项目编号 97H5 30 96 )资助项目

摘　　要：研究了由设计特征模型识别装配特征的算法 ,该算法采用凹凸特征模型为中间模型实现设计特征模型向装配模型的转化。识别算法用特征设计与特征识别相结合的方法有效地识别出设计特征指定面的所有凹凸特征 ,利用判别装配特征的充分必要条件得到所求的装配特征。该方法克服了传统算法的缺点 。A new assembly feature recognition method has been developed . The method employs depression protrusion features as intermediate geometry representation for transferring design feature into assembly feature. With the approach combining feature design with feature recognition, all depression protrusion features of the user\|specified face can be identified. By satisfying all the necessary and sufficient conditions the desired assembly feature can be obtained. The approach is an improvement to traditional algorithm, and is more efficient and more reliable. As a result, assembling procedure and production model can be successfully supported by the assembly feature.

关 键 词：凹凸特征 装配建模 装配特征识别 产品设计特征 

分 类 号：TB21[一般工业技术—工程设计测绘] TH166[机械工程—机械制造及自动化]