适应协同设计的产品模型的表示方法  

Representation Product Model Fitting Collaborative Design Environment

作　　者：王琪[1] 刘永贤[1] 臧戈平[2] 郭凯[2] 

机构地区：[1]东北大学机械工程与自动化学院,辽宁沈阳110004 [2]沈阳工业大学自控技术研究所,辽宁沈阳110023

出　　处：《东北大学学报（自然科学版）》2006年第7期798-801,共4页Journal of Northeastern University(Natural Science)

基　　金：国家高技术研究发展计划项目(2002AA420060)

摘　　要：为适应协同设计环境对产品造型技术的要求,采用基于标识的实体模型和特征模型相结合的方法来进行产品模型的表示.提出了基于特征的拓扑元素的标识方法并建立了相应的标识机制,把拓扑元素的标识与特征联系起来.标识及标识机制的引入使产品模型中的特征语义元素和实体几何拓扑元素既相互独立又彼此联系,有效地维护了协同设计过程中模型修改前后拓扑结构的对应关系,从而实现了在保证协同设计过程中协同模型一致性的前提下,对产品模型的特征编辑.In the course of collaborative design, the product model is required not only to be edited easily but available to maintain its semantic conformity. An identifier-based solid model combined with feature model is used to represent the product model fitting the collaborative design environment. The feature-based identifier of topological elements and its mechanism are presented to relate these identifiers to their features. In this product model, the semantic elements are independent relatively to topological elements but, at the same time, both are keeping in contact with each other by introducing the identifier mechanism, thus maintaining effectively the corresponding relation between the topological structures before and after modification and implementing the feature edit of product model with the conformity of model designs provided during collaborative design.

关 键 词：协同设计 产品模型 标识 拓扑结构 特征编辑 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]