VEGAS II: A Virtual Environment for General Assembly Simulation II

Overview

Realistic part interaction is an important component of an effective virtual assembly application. Both collision detection and part interaction modeling are needed to simulate part-to-part and hand-to-part interactions. This research examines several polygonal-based collision detection packages and compares their usage for virtual assembly applications with the Voxmap PointShell (VPS) software developed by the Boeing Company. VPS is a software developer’s toolkit for real-time collision and proximity detection, swept-volume generation, dynamic animation, and 6 degrees-of-freedom haptics which is based on volumetric collision detection and physically-based modeling. The method was found to provide realistic collision detection and physically-based modeling interaction, with good performance at the expense of contact accuracy. This research presents how VPS handles multiple dynamic part collisions and two-handed assembly using the 5DT dataglove in a projection-screen virtual environment.

Software and Hardware

• 5DT DataGlove from 5DT for human grab motion
• VRJuggler software for virtual environment management
• Voxmap PointShell software from Boeing for collision detection
• Display systems: C2 or C6 projection virtual environment (with Crystaleyes glasses) or a head mounted display
• Flock of Birds trackers

Publications

• Kim, C., and Vance, J. M., June, 2004, "Collision Detection and Part Interaction Modeling To Facilitate Immersive Virtual Assembly Methods", Journal of Computing and Information Science in Engineering, 4(1).
• Kim, C., and Vance, J. M., 2-6 September, 2003, "Using VPS (Voxmap PointShell) As The Basis For Interaction in a Virtual Assembly Environment", Proceedings of ASME 2003 Design Engineering Technical Conferences and Computers and Information in Engineering Conference, Chicago, Illinois, DETC2003/CIE-48297.

Personnel

• ChangEun Kim, Graduate Research Assistant (changkim@vrac.iastate.edu)
• Judy M. Vance, Principal Investigator, (jmvance@iastate.edu)

Funding

• Deere & Company
• Virtual Reality Applications Center at Iowa State University

Facilities

• Virtual Reality Applications Center

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