Grasp analysis using deformable fingers

The human hand is unrivaled in its ability to grasp and manipulate objects, but we still do not understand all of its complexities. One benefit it has over traditional robot hands is the fact that our fingers conform to a grasped object's shape, giving rise to larger contact areas and the ability to apply larger frictional forces. In this paper, we demonstrate how we have extended our simulation and analysis system with finite element modeling to allow us to evaluate these complex contact types. We also propose a new contact model that better accounts for the deformations and show how grasp quality is affected. This work is part of a larger project to understand the benefits the human hand has in grasping.

[1]  Peter K. Allen,et al.  Graspit! A versatile simulator for robotic grasping , 2004, IEEE Robotics & Automation Magazine.

[2]  Mark R. Cutkosky,et al.  Practical Force-Motion Models for Sliding Manipulation , 1996, Int. J. Robotics Res..

[3]  Suguru Arimoto,et al.  A position/force control for a soft tip robot finger under kinematic uncertainties , 2000, Proceedings 2000 ICRA. Millennium Conference. IEEE International Conference on Robotics and Automation. Symposia Proceedings (Cat. No.00CH37065).

[4]  Balasundar I Raju,et al.  3-D finite-element models of human and monkey fingertips to investigate the mechanics of tactile sense. , 2003, Journal of biomechanical engineering.

[5]  Christian Laugier,et al.  Dynamic simulation and virtual control of a deformable fingertip , 1996, Proceedings of IEEE International Conference on Robotics and Automation.

[6]  Gerd Hirzinger,et al.  A fast and robust grasp planner for arbitrary 3D objects , 1999, Proceedings 1999 IEEE International Conference on Robotics and Automation (Cat. No.99CH36288C).

[7]  Christian Duriez,et al.  A multi-threaded approach for deformable/rigid contacts with haptic feedback , 2004, 12th International Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems, 2004. HAPTICS '04. Proceedings..

[8]  Kevin Barraclough,et al.  I and i , 2001, BMJ : British Medical Journal.

[9]  Andrew A. Goldenberg,et al.  Soft materials for robotic fingers , 1992, Proceedings 1992 IEEE International Conference on Robotics and Automation.

[10]  John F. Canny,et al.  Planning optimal grasps , 1992, Proceedings 1992 IEEE International Conference on Robotics and Automation.

[11]  Hervé Delingette,et al.  Improving realism of a surgery simulator: linear anisotropic elasticity, complex interactions and force extrapolation , 2002, Comput. Animat. Virtual Worlds.

[12]  Suguru Arimoto,et al.  Robotic pinching by means of a pair of soft fingers with sensory feedback , 2001, Proceedings 2001 ICRA. IEEE International Conference on Robotics and Automation (Cat. No.01CH37164).

[13]  Mark R. Cutkosky,et al.  Rolling with deformable fingertips , 1995, Proceedings 1995 IEEE/RSJ International Conference on Intelligent Robots and Systems. Human Robot Interaction and Cooperative Robots.

[14]  Devin L Jindrich,et al.  Non-linear viscoelastic models predict fingertip pulp force-displacement characteristics during voluntary tapping. , 2003, Journal of biomechanics.

[15]  John Kenneth Salisbury,et al.  Simulating human fingers: a soft finger proxy model and algorithm , 2004, 12th International Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems, 2004. HAPTICS '04. Proceedings..

[16]  Klaus-Jürgen Bathe,et al.  ON THE TREATMENT OF INEQUALITY CONSTRAINTS ARISING FROM CONTACT CONDITIONS IN FINITE ELEMENT ANALYSIS , 1991 .

[17]  Imin Kao,et al.  Study of soft-finger contact mechanics using finite elements analysis and experiments , 2000, Proceedings 2000 ICRA. Millennium Conference. IEEE International Conference on Robotics and Automation. Symposia Proceedings (Cat. No.00CH37065).

[18]  Henrik I. Christensen,et al.  Implementation of multi-rigid-body dynamics within a robotic grasping simulator , 2003, 2003 IEEE International Conference on Robotics and Automation (Cat. No.03CH37422).

[19]  Imin Kao,et al.  Modeling of contact mechanics with experimental results for soft fingers , 1998, Proceedings. 1998 IEEE/RSJ International Conference on Intelligent Robots and Systems. Innovations in Theory, Practice and Applications (Cat. No.98CH36190).

[20]  A. Ruina,et al.  Planar sliding with dry friction Part 1. Limit surface and moment function , 1991 .

[21]  Zoe Doulgeri,et al.  Grasping control of rolling manipulations with deformable fingertips , 2003 .

[22]  Francisco J. Valero Cuevas.  Applying Principles of Robotics to Understand the Biomechanics, Neuromuscular Control and Clinical Rehabilitation of Human Digits , 2000, ICRA.