A novel robot hand with embedded shape memory alloy actuators

1 July 2002

journal article
research article
Published by SAGE Publications in Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science

Vol. 216 (7) , 737-745
https://doi.org/10.1243/09544060260128788

Abstract

This paper describes the development of an active robot hand, which allows smooth and lifelike motions for anthropomorphic grasping and fine manipulations. An active robot finger 10mm in outer diameter with a shape memory alloy (SMA) wire actuator embedded in the finger with a constant distance from the geometric centre of the finger was designed and fabricated. The practical specifications of the SMA wire and the flexible rod were determined on the basis of a series of formulae. The active finger consists of two bending parts, the SMA actuators and a connecting part. The mechanical properties of the bending part are investigated. The control system on the base of resistance feedback is also presented. Finally, a robot hand with three fingers was designed and the grasping experiment was carried out to demonstrate its performance.

Keywords

This publication has 7 references indexed in Scilit:

A linear SMA motor as direct-drive robotic actuator
Published by Institute of Electrical and Electronics Engineers (IEEE) ,2003
A UNIFIED THERMODYNAMIC CONSTITUTIVE MODEL FOR SMA AND FINITE ELEMENT ANALYSIS OF ACTIVE METAL MATRIX COMPOSITES
Mechanics of Composite Materials and Structures, 1996
An SMA-based flexible active endoscope for minimal invasive surgery
Journal of Micromechanics and Microengineering, 1995
Investigation of a shape memory alloy actuator for dextrous force-feedback masters
Advanced Robotics, 1994
Deformations of active flexible rods with embedded line actuators
Smart Materials and Structures, 1993
Active flexible rods with embedded SMA fibers
Smart Materials and Structures, 1992
A New Actuator of a Joint Mechanism Using TiNi Alloy Wire
The International Journal of Robotics Research, 1986