A SYSTEM FOR HAPTIC TOLERANCE ANALYSIS REGARDING NON-IDEAL GEOMETRY

DS 48: Proceedings DESIGN 2008, the 10th International Design Conference, Dubrovnik, Croatia

Year: 2008
Editor: Marjanovic D., Storga M., Pavkovic N., Bojcetic N.
Author: Wittmann, S.; Stockinger, A.; Stoll, T.; Paetzold, K.
Section: Geometrical modelling and tolerancing
Page(s): 729 - 736

Abstract

Incomplete or wrong definition of tolerances can cause aesthetic and functional problems. In a virtual environment the visual representation is not precise enough to reveal small deviations. Therefore a platform for haptic tolerance analysis is presented employing the human haptic sense for this task. The requirements on the system are the precise representation of geometry, realistic simulation of physics and stereographic visualization. In addition to the systems layout, experiments to acquire data about the system accuracy for gap and flush analysis are discussed. Finally, a case study for the analysis of sheet metal parts is presented. It is shown that haptic systems offer a high accuracy and extend the immersion in VR-environments.

Keywords: computer aided tolerancing, haptics, force feedback, tolerance analysis

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