1. 제 목 : Collaborative 3D Product Design with Multiple Levels of Detail based on Integration of Mesh and Feature Models

2. 연 사 : Chih-Hsing Chu
Assistant Professor
Product Realization Lab
Department of Industrial Engineering and Engineering Management
National Tsing Hua University

3. 일 시 : 2005년 8월 31일 (수) 오전11시 ~ 12시

4. 내 용 : Collaborative product development has emerged as an effective means for companies to remain competitive in the global market. Close collaborations with customers, suppliers, and other business partners become essential to meet time-to-market and reduce product development costs. One critical issue is to properly resolve design specifications at the early stage. In most Web-based collaborative design systems, product model is shared in the mesh representation during the collaboration process. This representation supports most 3D visualization effects but fails to retain design or manufacturing related attributes. Moreover, those systems do not distinguish the individual needs of each participant on product information or support complex collaboration scenarios in real industrial settings. Thus, collaborative design is still an ineffective and error-prone process. This talk introduces a novel representation scheme for 3D product model in the Web-based collaborative design environment. The idea is to encapsulate design information in the representation with multiple levels of detail (LOD), both semantically and graphically, corresponding to individual requirements and/or limitations. This is realized through integration of 2D mesh model and form features of 3D CAD. A “switch” is used to control the display of each feature in meshes. A new STL-based data structure and the related algorithms are proposed for implementing this multi-LOD concept. Finally, a real example of collaborative mold design illustrates the feasibility of the scheme. It also demonstrates that such a product model improves the security, traffic flow, and efficiency of the information sharing in collaborative design.


6. 연사약력
Assistant Professor, National Tsing-Hua University, Taiwan, 2002~
Faculty, Industrial and System Engineering Department , Virginia Tech, Blacksburg, USA
Technical Consultant, StandTech Inc., Taoyuan, Taiwan
Research Intern, DaimlerBenz AG, Stuttgart, Germany
Web Application Engineer, RedSpark Inc., an Autodesk Venture
Visiting Researcher, Laboratory for Machine Tools and Production Engineering (WZL), RWTH Aachen, Germany
Ph.D., Laboratory for Manufacturing Automation, University of California at Berkeley, USA
BS,MS, Mechanical Engineering Department, National Taiwan University, Taipei, Taiwan

7. 문 의 : 기계항공공학부 안 성 훈 교수 (☏ 880-7110)