基于特征语义描述的协同造型  

Collaborative Modeling Based on Feature Semantics Description

作　　者：刘琼[1] 邓明中[1] 张宁[1] 

机构地区：[1]南华大学机械工程学院,湖南衡阳421001

出　　处：《计算机与现代化》2013年第10期149-152,158,共5页Computer and Modernization

基　　金：湖南省自然科学基金资助项目(10JJ4037);南华大学博士科研启动基金资助项目(2007XQD35);国家留学基金资助项目(201208430054)

摘　　要：针对协同特征造型中模型的传输数据量大的问题,提出一种基于特征的描述性语义协同造型方法。对基于特征的产品模型的语义描述进行分析,以XML进行描述,并通过采用基于父子约束关系的特征驱动的模型构建方法,使得造型不再依赖特征创建的顺序,维护了设计结果和设计意图的一致性,也有助于提高设计效率。分析特征语义增量文件的本地识别、提取以及网络交互,通过只传输XML增量语义,初步实现低量网络传输负荷的协同造型。In order to deal with the problem that the large amount of transmission data of a model in the collaborative feature mod- eling, this paper proposes a new feature-based descriptive semantic-collaborative modeling method. The semantic description of the features for a product＇ s model that described by XML is analyzed. For ensuring that the modeling do not depend on the crea- ted sequence of features and maintaining the consistency of the design results with the design intent, this article also puts forward a model＇ s constructing method which driven by the features. This drive mode was based on the constraint relationship between the father element feature and son element feature. This approach also helps to improve the efficiency of design. Finally, the local recognition, extraction and network interaction of the feature semantics increment file are studied. By transmitting only incremen- tal semantic that described by XML, the collaborative modeling with low network traffic load can be realized in principle.

关 键 词：特征驱动 增量语义 语义协同造型 XML 

分 类 号：TP311.52[自动化与计算机技术—计算机软件与理论]