A FORMAL REPRESENTATION FOR FEATURE-BASED DESIGN  

作　　者：孙正兴[1,2] 丁秋林 张福炎[1,2] 

机构地区：[1]南京大学计算机科学与技术系 [2]南京航空航天大学计算机科学与工程系

出　　处：《Transactions of Nanjing University of Aeronautics and Astronautics》1997年第1期37-46,共10页南京航空航天大学学报（英文版）

摘　　要：Feature based design has been regarded as a promising approach for CAD/CAM integration.This paper aims to establish a domain independent representation formalism for feature based design in three aspects: formal representation,design process model and design algorithm.The implementing scheme and formal description of feature taxonomy,feature operator,feature model validation and feature transformation are given in the paper.The feature based design process model suited for either sequencial or concurrent engineering is proposed and its application to product structural design and process plan design is presented. Some general design algorithms for developing feature based design system are also addressed.The proposed scheme provides a formal methodology elementary for feature based design system development and operation in a structural way.从三个方面研究了基于特征设计的形式化描述方法：基于特征设计的基本定义、设计过程模型及设计算法。文中给出了特征分类、特征操作、特征模型验证和特征映射策略及其形式化描述方式，建立了兼顾并行工程和顺序工程设计方式的基于特征设计过程形式化描述模型，提出了基于特征的设计算法，为解决基于特征设计系统开发和运行缺乏统一方法学这一课题作了有益的尝试。

关 键 词：CAD CAM product modelling design process feature  based design representation formalism 

分 类 号：TP391.7[自动化与计算机技术—计算机应用技术]