Part modeling and assembly modeling are two aspects of product modeling, which greatly influence industrial completeness. Although the two aspects are highly integrated in current computer-aided design (CAD) systems, they are separated when concerning the perspective of process. To alleviate the issue, a product modeling method based on the phenomenon of structure pre-mapping (SPM) is proposed. Firstly, systematical analyses are conducted to study the product modeling process and the tasks needed to fulfill SPM. Secondly, the key characteristics of SPM are demonstrated and formalized to facilitate its description in CAD systems. Thirdly, the previously developed concept of assembly feature pair is used to model the design intent existed in human brain, including the abstract mating structure and behavior, providing a solid ground for realizing SPM. Fourthly, the principle of product modeling based on SPM is revealed, and a corresponding framework is presented, with its functional modules and their realization being discussed. Finally, the modeling of a head assembly (which is a component of a HP engine) is used to demonstrate the feasibility of the proposed method, which can reinforce the integration of part modeling and assembly modeling from the perspective of process, thus enriching and facilitating the development of CAD modeling theory and technology systems.
[1] VAN HOLLAND W,BRONSVOORT W F. Assembly features in modeling and planning[J]. Robotics and Computer-Integrated Manufacturing,2000,16:277-294.
[2] CHIN K S,ZHAO Y,MOK C K. STEP-based multiview integrated product modelling for concurrent engineering[J]. International Journal of Advanced Manufacturing Technology,2002,20:896-906.
[3] HORVÁTH L,RUDAS I. Modeling and problem solving techniques for engineers[M]. Burlington:Elsvier Acdemic Press,MA 01803,USA,2004.
[4] SINGH P,BETTIG B. Port-compatability and connectability based assembly design[J]. Journal of Computing and Information Science in Engineering,2004,4:197-205.
[5] 邵晓东,殷磊,陆源,等. 一种基于特征的快速装配方法[J]. 计算机集成制造系统,2007,13(11):2217-2223. SHAO Xiaodong,YIN Lei,LU Yuan,et al. Rapid assembling approach based on assembly features[J]. Computer Integrated Manufacturing Systems,2007,13(11):2217-2223.
[6] 刘振宇. 面向过程与历史的虚拟环境中产品装配建模理论、方法及应用研究[D]. 杭州:浙江大学,2001. LIU Zhenyu. Research on the theory,method and application of process-and-history-oriented assembly modeling in virtual environment[D]. Hangzhou:Zhejiang University,2001.
[7] ROY U,BHARADWAJ B. Design with part behaviors:Behavior model,representation and applications[J]. Computer-Aided Design,2002,34(9):613-636.
[8] SHANG Yong,HUANG Kezheng,ZHANG Qingping. Genetic model for conceptual design of mechanical products based on functional surface[J]. The International Journal of Advanced Manufacturing Technology,2009,42(3-4):211-221.
[9] ALBERS A,OHMER M,ECKERT C. Engineering design in a different way:cognitive perspective on the contact and channel model approach[C]//Proceedings of 3rd International Conference on Visual and Spatial Reasoning in Design,Massachusetts Institute of Technology,Cambridge:University of Sydney,2004:1-21.
[10] BOHEZ E,IRFAN M A. Assembly features:Definition,classification,and instantiation[C]//Proceedings of 2006 International Conference on Emerging Technologies,IEEE,2006:617-623.
[11] MA Y S,BRITTON G A,TOR S B,et al. Associative assembly design features:Concept,implementation and application[J]. The International Journal of Advanced Manufacturing Technology,2007,32(5-6):434-444.
[12] LI Guidong,ZHOU Laishui,AN Luling,et al. A methodology for rapid assembly modeling of components with typical assembly feature[C]//Proceedings of 2009 International Conference on Measuring Technology and Mechatronics Automation,IEEE,2009,2:179-183.
[13] CAMBA J,CONTERO M,JOHNSON M,et al. Extended 3D annotations as a new mechanism to explicitly communicate geometric design intent and increase CAD model reusability[J]. Computer-Aided Design,2014,57:61-73.
[14] CAMBA J D,CONTERO M. Assessing the impact of geometric design intent annotations on parametric model alteration activities[J]. Computers in Industry,2015,71(C):35-45.
[15] 伊国栋,谭建荣,张树有,等. 基于配合面偶的装配约束建模[J]. 浙江大学学报,2006,40(6):921-926. YI Guodong,TAN Jianrong,ZHANG Shuyou,et al. Assembly constraint modeling based on mating surface couple[J]. Journal of Zhejiang University,200,40(6):921-926.
[16] 武殿梁,杨润党,马登哲,等. 集成虚拟装配环境中的多约束导航技术研究[J]. 机械工程学报,2004,14(11):47-52. WU Dianliang,YANG Rundang,MA Dengzhe,et al. Constraints navigation in integrated virtual assembly environment[J]. Chinese Journal of Mechanical Engineering,2004,14(11):47-52.
[17] YANG Rundang,FAN Xiumin,WU Dianliang,et al. Virtual assembly technologies based on constraint and DOF analysis[J]. Robotics and Computer-Integrated Manufacturing,2007,23(4):447-456.
[18] XU Zhijia,ZHANG Jie,LI Yuan,et al. Product modeling framework based on assembly feature pair[J]. Computer-Aided Design,2013,45:1591-1603.
[19] ZHANG Jie,XU Zhijia,LI Yuan,et al. Framework for the integration of assembly modeling and simulation based on assembly feature pair[J]. International Journal of Advanced Manufacturing Technology,2015,78(5):765-780.
[20] LE D T,CORTÉS J,SIMÉON T. A path planning approach to (dis)assembly sequencing[C]//Automation Science and Engineering,2009. CASE 2009. IEEE International Conference on. IEEE,2009:286-291.
[21] AGUINAGA I,BORRO D,MATEY L. Parallel RRT-based path planning for selective disassembly planning[J]. The International Journal of Advanced Manufacturing Technology,2008,36(11-12):1221-1233.
[22] CHEN Xiang,GAO Shuming,YANG Youdong,et al. Multi-level assembly model for top-down design of mechanical products[J]. Computer-Aided Design,2012,44(10):1033-1048.
[23] ZHANG Jie,WANG Pan,ZUO Mi,et al. Automatic assembly simulation of product in virtual environment based on interaction feature pair[J]. Journal of Intelligent Manufacturing,2015:1-22,doi:10.1007/s10845-015-1173-y.
