NDLI: Characterization of the precision manipulation capabilities of robot hands via the continuous group of displacements

Content Provider	IEEE Xplore Digital Library
Author	Rojas, N. Dollar, A.M.
Copyright Year	2014
Description	Author affiliation: Dept. of Mech. Eng. & Mater. Sci., Yale Univ., New Haven, CT, USA (Rojas, N.; Dollar, A.M.)
Abstract	In robot hands, precision manipulation, defined as repositioning of a grasped object within the hand workspace without breaking or changing contact, is a fundamental operation for the accomplishment of highly dexterous manipulation tasks. This paper presents a method to characterize the precision manipulation capabilities of a given robot hand regardless of the particularities of the grasped object. The technique allows determining the composition of the displacement manifold (finite motion) of the grasped object relative to the palm of the robot hand and defining the displacements that can actually be controlled by the hand actuators without depending on external factors to the hand. The approach is based on a reduction of the graph of kinematic constraints related to the hand-object system through proper manipulations of the continuous subgroups of displacements generated by the hand joints and contacts. The proposed method is demonstrated through three detailed and constructive examples of common architectures of simplified multi-fingered hands.
Starting Page	1601
Ending Page	1608
File Size	1164753
Page Count	8
File Format	PDF
e-ISBN	9781479969340
DOI	10.1109/IROS.2014.6942769
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-09-14
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Kinematics Thumb Joints Robots Vectors Manifolds
Content Type	Text
Resource Type	Article

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