基于属性邻接图的STEP-NC制造特征识别实现  

Implementation of STEP-NC Manufacturing Feature Recognition Based on Attribute Adjacent Graph

作　　者：吴晓东[1] 韩祖行[1] 

机构地区：[1]福州大学机械工程及自动化学院,福建福州350108

出　　处：《机械设计与制造工程》2013年第7期13-16,共4页Machine Design and Manufacturing Engineering

摘　　要：针对于STEP-NC(ISO14649)中规定的的制造特征,论述了基于属性邻接图(AAG)的特征识别方法及其实现过程:首先分析STEP AP203的文件结构,然后提取文件中所包含的几何拓扑信息,判断两个面公共边的凹凸性,构造零件属性邻接图和属性邻接矩阵,通过一定的算法对其进行分解并完成特征子图的匹配,最后在VS 2005平台下开发软件原型系统,验证该特征识别方法的正确性。Considering the manufacturing features defined by STEP - NC, it clarifies the feature recognition based on AAG and its implementation process. It analyzes file structure of STEP AP203, extracts the geometric and to- pology information in the file, judges the concave/convex of the common edge, constructs the attributed adjacen- cy graphic and attributed adjacency matrix. Then it deconstruct and match these Sub -feature graphics by using a certain algorithm, develops a software prototype with VS2005. It verifies this feature recognition method.

关 键 词：STEP—NC 属性邻接图 特征识别 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]