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Vol: 53(67) No: 4 / December 2008 Description and Integration of Engineering Objects in Models for Lifecycle Engineering of Products László Horváth Institure of Intelligent Engineering Systems, Budapest Tech, John von Neumann Faculty of Informatics, H-1034, Bécsi u 96/b, Budapest, Hungary, phone: +(36-1) 666-5524, e-mail: horvath.laszlo@nik.bmf.hu, web: http://nik.bmf.hu/lhorvath/ Imre J. Rudas Institure of Intelligent Engineering Systems, Budapest Tech, John von Neumann Faculty of Informatics, H-1034, Bécsi u 96/b, Budapest, Hungary, phone: +(36-1) 666-5601, e-mail: rudas@bmf.hu, web: http://www.bmf.hu/rudas/ Keywords: development of product, product modeling, model integration, change management in product model Abstract Modeling of products has reached a level of its development where a homogenous and consistent virtual space includes all information for engineering activities during the product lifecycle. Product model can accept variants. A less successful sector at development of product models is record of human intent for later modification of modeled engineering object considering human intents for the definition of the modified object attribute value. This would be important because typically several humans have influence on a single decision. The authors analyzed this problem and proposed a set of new modeling methods. In this paper, they introduce methods for knowledge based integration of closely related engineering objectives in integrated model objects (IMO). Following this, a method is proposed for the propagation of effects of changed engineering objects along chains of related engineering objects in large product models. The proposed methods are placed in professional modeling systems where this development can be realized in application environment. References [1] A. Mervyn, S. Kumar, S. H. Bok and A. Y. C Nee, “Developing distributed applications for integrated product and process design,” in Computer-Aided Design, F. Volume 36, Issue 8, July 2004, pp. 679-689. [2] M. K. Lim and D. Z. Zhang, “An integrated agent-based approach for responsive control of manufacturing resources,” Computers & Industrial Engineering, Volume 46, Issue 2, April 2004, pp. 221-232. [3] R. Sudarsan, S.J. Fenves, R.D. Sriram and F. Wang, “A product information modeling framework for product lifecycle management,“ Computer-Aided Design, Volume 37, Issue 13, November 2005, pp. 1399-1411. [4] M. Sitharam, J.-J. Oung, Y. Zhou and A. Arbree, “Geometric constraints within feature hierarchies,” in Computer-Aided Design, Volume 38, Issue 1, January 2006, pp. 22-38. [5] Hiroshi Hosobe and Satoshi Matsuoka, “A Foundation of Solution Methods for Constraint Hierarchies,” Constraints, Volume 8, Number 1, January 2003, pp. 41 – 59. [6] L. Horváth and I. J. Rudas, “Active Description of Engineering Objects for Modeling in Extended Companies,” in proc. of the 2004 IEEE International Conference on Systems, Man & Cybernetics, SMC 2004, ISBN 0-7803-85675, 2004, pp. 3312 – 3317. [7] L. Horváth and I. J. Rudas, “Human Intent Description in Environment Adaptive Product Model Objects,” in Journal of Advanced Computational Intelligence and Intelligent Informatics, Tokyo, Vol 9, No.4, pp. 415-422, 2005. [8] L. Horváth and I. J. Rudas, Modeling and Problem Solving Methods for Engineers, Elsevier, Academic Press, 2004. [9] L. Horváth and I. J. Rudas, “Possibilities for Application of Associative Objects with Built-in Intelligence in Engineering Modeling” in Journal of Advanced Computational Intelligence and Intelligent Informatics, Tokyo, Vol 8, No.5, pp. 544-551, 2004. |