Microsoft Word 刘金锋-确认稿.doc

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1 第 29 卷第 4 期计算机辅助设计与图形学学报 Vol. 29 No 年 4 月 Journal of Computer-Aided Design & Computer Graphics Apr 面向三维机加工艺重用的加工特征匹配方法刘金锋 1), 周宏根 1) 2), 刘晓军 1) ( 江苏科技大学机械工程学院镇江 ) 2) ( 东南大学机械工程学院南京 ) (liujinfeng@just.edu.cn) : 为了实现对已有三维机加工设计成果的有效重用, 提出一种基于工艺知识的加工特征匹配方法. 首先建立以加工特征为组织单元的集成化工艺路线, 实现对动态演变特性的工艺信息的有效组织与表达 ; 然后采用面向对象的方法创建多层次管理器描述各工序的加工特征信息, 利用面组属性邻接矩阵表达并记录加工特征的拓扑关系 ; 最后将各工序信息分为工艺层特征层以及属性层, 提出加工特征的层次化检索方法, 实现加工特征准确匹配. 实例结果表明, 该方法能够有效地实现加工特征的快速匹配, 为三维工艺信息的重用奠定基础. : 工艺重用 ; 智能匹配 ; 层次化检索 ; 工艺路线 :TP391.7 Study on Machining Features Matching for 3D Machining Process Reuse Liu Jinfeng 1), Zhou Honggen 1), and Liu Xiaojun 2) 1) (School of Mechanical Engineering, Jiangsu University of Science and Technology, Zhenjiang ) 2) (School of Mechanical Engineering, Southeast University, Nanjing ) Abstract: In order to realize effective reuse of the existing three-dimensional machining process planning, a matching method of machining features is proposed based on the process knowledge. Firstly, through the establishment of an integrated process route with the machining feature as the integrated unit, the effective organization and expression of process information on dynamic evolution can be achieved. Then, a multi-level manager is created to describe the machining feature based on the object-oriented approach, and the topological relation of machining features is expressed and recorded in the adjacency matrix of the face group attributes. Finally, the process information is divided into three layers: the process layer, the geometry layer and the property layer. The same machining features are accurately matched by the proposed method of hierarchical retrieval. The experimental results show that the proposed method can effectively realize fast matching of machining features and lay a foundation for the reuse of 3D process information. Key words: process reuse; intelligent matching; hierarchical retrieval; process route, CAD, CAD/CAPP,.,., : ; : 基金项目 : ( ). 刘金锋 (1987 ),,,, ; 周宏根 (1976 ),,,,, ; 刘晓军 (1980 ),,,,,.

2 第 4 期, 等 : 769,,, (casebased reasoning, CBR). Chang [1] CBR, [2], ; Tiwari [3] CBR,, ;, Zhou [4],, ;, Hashemi [5] CBR,. [6-7]. ( ),., [8]. [9], ; [10], ; [11],.,, ;,,.., Huang [12] MBD,, [13], [14], ;,. Li [15], CNC.., CBR,,.,,. ;, ;,,. 1 基本概念与本文方法概述 1.1 基本概念 1),,,. ( f 0, f 1, f 2, ),, ( ),. [16],, 1. 1

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5 772 计算机辅助设计与图形学学报第 29 卷,,,,.,,. 2.2 加工特征的描述方法,,.,,, 1. 1,,,,. 表 1 加工特征的多层次管理器 n 1 { n, n, n, }? or N A[i][j] N j i j k n,,,. 2, 1;, 0. 1, if i, j E A [][ i j]. 0, else 1, n 1 \n 2 \n 3, F 1 \F 2 \F 3 ;, 5. 5a, ; 5b, ; 5c, ( ) 加工特征的层次化检索方法,, 3.,,,. 6. 1).,. 2).,,,. 3).,,. 4). 5

6 第 4 期, 等 : 773 6,,. 3 分析与验证 3.1 应用分析,.,,. 7a.,, 7b., ;, ;,. A ( 7a ),. 1) ( 8a ), : a. [16] 7,,, 8a ; b., ( 8c ), ; c.,., 8b. 2) a.., n 1 = (0, 0, 1),, 8b,, F={F 1, F 2, F 3, F 4, F 5 }, 9a. b..

7 774 计算机辅助设计与图形学学报第 29 卷 8,,,, 9b.,,, 2. 9 c.,. [16],,. 3.2 实例验证 MPD-Processer,, a ; 10b,,,. 工艺路线创建的工序去除体拾取的加工特征面组匹配的加工特征信息连接槽加工 a. b 总结,,.,.,.,

8 第 4 期, 等 : 775,.,,. 参考文献 (References): [1] Chang H C, Dong L, Liu F X, et al. Indexing and retrieval in machining process planning using case-based reasoning[j]. Artificial Intelligence in Engineering, 2000, 14(1): 1-13 [2] Chang H C, Lu W F, Liu F X. Machining process planning of prismatic parts using case-based reasoning and past process knowledge[j]. Applied Artificial Intelligence, 2002, 16(4): [3] Tiwari M K, Kotaiah K R, Bhatnagar S. A case-based computer-aided process-planning system for machining prismatic components[j]. The International Journal of Advanced Manufacturing Technology, 2001, 17(6): [4] Zhou F, Jiang Z G, Zhang H, et al. A case-based reasoning method for remanufacturing process planning[j]. Discrete Dynamics in Nature and Society, 2014, 2014: Article No [5] Hashemi H, Shaharoun A M, Sudin I. A case-based reasoning approach for design of machining fixture[j]. The International Journal of Advanced Manufacturing Technology, 2014, 74(1): [6] Su Q. Applying case-based reasoning in assembly sequence planning[j]. International Journal of Production Research, 2007, 45(1): [7] Qu S P, Jiang Z H, Tao N R. An integrated method for block assembly sequence planning in shipbuilding[j]. The International Journal of Advanced Manufacturing Technology, 2013, 69(5): [8] Huang Guoqing, Li Jianfeng. Applied research on typical process knowledge in CAPP[J]. Mechanical Science and Technology, 2006, 25(4) : (in Chinese) (,. CAPP [J]., 2006, 25(4): ) [9] Zhou Danchen. Typical process route discovery method based on granular computing and sequence alignment[j]. Computer Integrated Manufacturing Systems, 2015, 21(3): (in Chinese) (. [J]., 2015, 21(3): ) [10] Zhang Hui, Qiu Lemiao, Zhang Shuyou, et al. Typical product process route extraction method based on intelligent clustering analysis[j]. Computer Integrated Manufacturing Systems, 2013, 19(3): (in Chinese) (,,,. [J]., 2013, 19(3): ) [11] Liu S N, Zhang Z M, Tian X T. A typical process route dis-covery method based on clustering analysis[j]. The International Journal of Advanced Manufacturing Technology, 2007, 35(1): [12] Huang R, Zhang S S, Bai X L, et al. Multi-level structuralized model-based definition model based on machining features for manufacturing reuse of mechanical parts[j]. The International Journal of Advanced Manufacturing Technology, 2014, 75(5): [13] Huang R, Zhang S S, Bai X L, et al. An effective subpart retrieval approach of 3D CAD models for manufacturing process reuse[j]. Computers in Industry, 2015, 67: [14] Huang R, Zhang S S, Xu C H, et al. A flexible and effective NC machining process reuse approach for similar subparts[j]. Computer-Aided Design, 2015, 62: [15] Li Y G, Wang W, Liu X L, et al. Definition and recognition of rib features in aircraft structural part[j]. International Journal of Computer Integrated Manufacturing, 2014, 27(1): 1-19 [16] Liu Jinfeng, Ni Zhonghua, Liu Xiaojun, et al. Rapidly create method for inter-process model of 3D machining process[j]. Computer Integrated Manufacturing Systems, 2014, 20(7): (in Chinese) (,,,. [J]., 2014, 20(7): )

Microsoft Word - 201506定版

Microsoft Word - 201506定版 56 Chinese Journal of Library and Information Science for Traditional Chinese Medicine Dec. 2015 Vol. 39 No. 6 综述中医药学语言系统研究综述于彤, 贾李蓉, 刘静, 杨硕 *, 董燕, 朱玲中国中医科学院中医药信息研究所,