Title :
A review of modeling of soft-contact fingers and stiffness control for dextrous manipulation in robotics
Author :
Li, Yanmei ; Kao, Imin
Author_Institution :
Dept. of Mech. Eng., State Univ. of New York, Stony Brook, NY, USA
Abstract :
Dextrous manipulation involves a variety of subjects in robotics, including kinematics, rolling and sliding, contact mechanics, grasping planning and optimization, dynamics, and control. It is generally postulated in the literature that contacts in all grasping and manipulation are point contacts or soft contacts. The former can be modeled as either a frictionless point contact or a frictional point contact; the latter, although being a more practical model, has not been commonly utilized. In this paper, the recent progress in the modeling of dextrous manipulation utilizing soft contacts and stiffness control is presented. The result augments the well-known Hertzian contact model from linear elastic contacts to soft contacts. In addition, the conservative congruence transformation for stiffness control in robotics, that are often used in dextrous grasping and manipulation, is presented.
Keywords :
dexterous manipulators; manipulator dynamics; manipulator kinematics; mechanical variables control; Hertzian contact model; conservative congruence transformation; dextrous manipulators; dynamics; grasping; kinematics; sliding; soft-contact fingers; stiffness control; Equations; Fingers; Friction; Grasping; Haptic interfaces; Humanoid robots; Humans; Kinematics; Service robots; Sliding mode control;
Conference_Titel :
Robotics and Automation, 2001. Proceedings 2001 ICRA. IEEE International Conference on
Print_ISBN :
0-7803-6576-3
DOI :
10.1109/ROBOT.2001.933086