| 逆向工程中基于属性邻接图的加工特征识别 |
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| 引用本文： | 刘雪梅,张树生,崔卫卫,宋加玉. 逆向工程中基于属性邻接图的加工特征识别[J]. 计算机集成制造系统, 2008, 14(6) |
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| 作者姓名： | 刘雪梅 张树生 崔卫卫 宋加玉 |
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| 作者单位： | 西北工业大学,现代设计与集成制造技术教育部重点实验室,陕西,西安,710072;华北水利水电学院,信息工程系,河南,郑州,450011;西北工业大学,现代设计与集成制造技术教育部重点实验室,陕西,西安,710072;华北水利水电学院,信息工程系,河南,郑州,450011 |
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| 基金项目： | 国家自然科学基金 , 航空基础科学基金 , 河南省教育厅自然科学基金 |
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| 摘 要： | 为了提供逆向工程系统和CAx系统集成的直接通道,提出了针对点云数据建立属性邻接图的算法,并利用属性邻接图实现加工特征自动识别.首先利用模糊c-均值聚类方法对点云进行分区,将分区后的面片进行曲面类型判别和几何参数提取.设计了建立面片之间邻接关系和判断相邻面片之间凸凹性的算法,从而建立零件的属性邻接图;对零件的属性邻接图进行分解,遍历分解后的子图形成特征子图,将特征子图与特征规则相匹配,从而实现加工特征自动识别.实验结果证明了该算法的有效性.
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| 关 键 词： | 加工特征 特征识别 点云 逆向工程 |
Machined features recognition based on attributed adjacency graph in reverse engineering |
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| LIU Xue-mei,ZHANG Shu-sheng,CUI Wei-wei,SONG Jia-yu. Machined features recognition based on attributed adjacency graph in reverse engineering[J]. Computer Integrated Manufacturing Systems, 2008, 14(6) |
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| Authors: | LIU Xue-mei ZHANG Shu-sheng CUI Wei-wei SONG Jia-yu |
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| Affiliation: | LIU Xue-mei1,2,ZHANG Shu-sheng1,CUI Wei-wei2,SONG Jia-yu2(1.Ministry of Education Key Lab of Contemporary Design & Integrated Manufacturing Technology,Northwestern Polytechnical University,Xi'an 710072,China,2.Department of Information Engineering,North China Institute of Water Conservancy , Hydroelectric Power,Zhengzhou 450011,China) |
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| Abstract: | To offer a direct path for integration of reverse engineering and CAx system,machined features recognition based point cloud data was put forward.The algorithm of constructing Attributed Adjacency Graph(AAG) based point cloud data was presented,and then AAG was used to recognize machined features.Firstly,fuzzy c-means cluster method was used to segment point cloud.Surface types of patches were distinguished and their geometric parameters were extracted.The algorithm of constructing adjacency relationships a... |
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| Keywords: | machined feature feature recognition point cloud reverse engineering |
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