面向并行设计的特征识别与模型重构方法  

Automatic Feature Recognition and Model Reconstruction for Concurrent Design

作　　者：潘双夏[1] 徐有忠[1] 冯培恩[1] 姜少飞[1] 段福斌[2] 

机构地区：[1]浙江大学CAD&CG国家重点实验室,杭州310027 [2]浙江科技学院机电工程学系,杭州310012

出　　处：《计算机辅助设计与图形学学报》2003年第8期984-991,共8页Journal of Computer-Aided Design & Computer Graphics

基　　金：国家自然科学基金 (5 963 5 15 0 );浙江省重大科技攻关项目(0 2 110 15 60 );浙江省自然科学基金(5 0 2 0 17;5 0 112 3 )资助

摘　　要：在分析现有CAD软件以及产品建模方法不足的基础上 ,引入广义工程语义特征的概念 ,应用广义特征对象实现面向并行设计的产品广义信息模型的简化表示 ;提出一种自动特征识别方法 ,对识别对象进行分类 ;以截面复杂的回转体特征为例 ,着重表述了基于基面的特征识别算法 ;扼要介绍Pro/E软件中的特征结构树 ,提出面向Pro/E的特征信息三级提取策略与特征信息模型重构原则 。For realizing feature based integration of CAD/CAPP/CAM processes, an approach to recognize and extract design features is presented to facilitate the Design For X(DFX) evaluation and optimization in concurrent product development The concept of generalized engineering semantic feature (GESF) is introduced to represent the generalized product information model in a simplified way Feature recognition is fulfiled using case by case classification For instance, rotational features are classified by the shape of generatrix Based on the structure of feature tree in Pro/E software, a three step strategy is worked out to extract the feature information of part, and rules to reconstruct it into feature information model are elaborated In such a way, the Design For X prototype system is undergoing development

关 键 词：CAD 并行设计 特征识别 模型重构 并行工程 计算机辅助设计 

分 类 号：TP391.72[自动化与计算机技术—计算机应用技术]