Computer Aided Engineering Design and Virtual Prototyping
Faculty:
Dr. Xiaobo Peng TEL: (936) 261-9959 Email: xipeng@pvamu.edu
Research Interest:
CAD/CAM/CAE, Product Design, Virtual Reality, Collaborative Engineering Design
Facilities at Collaborative Engineering Design and Virtual Reality Lab:
Virtual Reality Facilities:
o Two PHANToM Omini Haptic Devices
o 4 HP graphics workstations
o OpenHaptics Toolkit
o Freeform Modeling system
Collaborative Engineering Design Facilities:
o Two High-end Sun servers (x2100)
o Twenty Five High-end HP engineering workstations
o Tandberg Video conference system
o Unigraphics NX3 (CAD)
o Teamcenter Community 5.2 (Collaboration)
o MAC. ADAMS, Altair. HyperWorks, and ANSYS (CAE)
o Video and audio conferencing software
Research Activities:
Virtual Sculpting with Haptic Interface
The goal of this system is to enable interactive modeling in a virtual environment such that the user can focus on the design intent. An interactive modeling method as shown in Fig. 1 is implemented with VR hardware and software to allow the user creating and modifying 3D free-form object in an advanced virtual environment. The system’s stereo viewing, motion tracking and haptic interface capabilities provide a friendly environment where the user can create freeform objects in an intuitive manner similar to sculpting in a physical environment.

Figure 1. Schematic of virtual sculpting system
Selected Publications:
1. Zhang, W., Peng, X., and Leu, M.C., 2007, “A Novel Contour Generation Algorithm for Surface Reconstruction from Dexel Data,” Journal of Computing and Information Science in Engineering, 7(3), pp. 203-210.
2. Peng, X., Zhang, W. and Leu, M.C., 2006, “Freeform Modeling using Swept Differential Equation with Haptic Interface,” Journal of Virtual and Physical Prototyping, 1(3), pp. 183 - 196.
3. Leu, M.C., Peng, X. and Zhang, W., 2005, “Surface Reconstruction for Interactive Modeling of Freeform Solids by Virtual Sculpting,” CIRP Annals, 54(1), pp. 131-134.
4. Peng, X. and Leu, M. C., 2005, “Engineering Applications of Virtual Reality,” Mechanical Engineers’ Handbook, 3rd Edition, edited by Myer Kutz, John Wiley and Sons, pp. 732-761.
5. Peng, X. and Leu, M.C., 2004, “Interactive Solid Modeling in a Virtual Environment with Haptic Interface,” Virtual and Augmented Reality Applications in Manufacturing, edited by Ong, S. K. and Nee, A. Y. C., Springer-Verlag London Limited, London, pp. 43-61.