Simulation of Soft Finger Contact Model with Rolling Effects in Point-Contact Haptic Interfaces
Computation of contact point trajectories and forces exchanged between two bodies in contact are relevant to several disciplines. The solutions proposed in the literature are often too complex to be implemented in real time simulations, especially if rolling effects are considered. In this chapter, an algorithm for fast simulation of soft-finger contact model with rolling effects is proposed. The main idea is to use Euler angle decomposition algorithm to quantitatively describe the torque exchanged about the normal at the contact point and the motion of the contact point due to rolling. The proposed algorithm is validated with simulations and a preliminary application to point-contact haptic interface is proposed.
KeywordsContact modeling Soft finger model Rolling effects
The research leading to these results has received funding from the European Union Seventh Framework Program FP7/2007-2013 under the grant agreement 601165 of the project “WEARHAP” and under the grant agreement 270460 of the project “ACTIVE”.
- 2.Prattichizzo, D., Trinkle, J.C.: Grasping. In: Siciliano, B., Khatib, O. (eds.) Springer Handbook of Robotics. Springer, Heidelberg (2008)Google Scholar
- 3.Johnson, K.L.: Contact Mechanics. Cambridge University Press, Cambridge (1987)Google Scholar
- 4.Barbagli, F., Frisoli, A., Salisbury, K., Bergamasco, M.: Simulating human fingers: a soft finger proxy model and algorithm. In: Proceedings of the 12th International Symposium on HAPTICS ’04, pp. 9–17 (2004)Google Scholar
- 7.Frisoli, A., Barbagli, F., Ruffaldi, E., Salisbury, K., Bergamasco, M.: A limit-curve based soft finger god-object algorithm. In: 14th Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems, pp. 217–223 (2006)Google Scholar
- 10.On-line. http://www.forcedimension.com
- 11.On-line. http://www.chai3d.org
- 12.Ruspini, D.C., Kolarov, K., Khatib, O.: The haptic display of complex graphical environments. Comput. Graph. 31(Annual Conference Series), 345–352 (1997)Google Scholar