DocumentCode
3337477
Title
Reconfiguration of a redundant manipulator with task-oriented manipulability
Author
Sukhan Lee ; Lee, Sukhan
Author_Institution
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
fYear
1991
fDate
19-22 June 1991
Firstpage
1239
Abstract
Presents a new concept of a reconfigurable manipulator system which adjusts its mechanical structure to suit the kinematic characteristics of a given task. A highly redundant manipulator designed as a general purpose manipulator needs to be reconfigured for a specific task A task is decomposed of motion and force components with different control requirements: either gross motion control or fine motion control. Each of these task components can be distributed to each part of the manipulator based on the control requirements and the structure of the manipulator. Through the reconfiguration, a redundant manipulator is decomposed into two local arms, and the kinematic characteristics of each local arm is adjusted to suit the assigned task. The reconfigured redundant manipulator has two local arms well-configured for the local tasks and cooperating in serial for a given task. This globally enhances the performance of a redundant manipulator to execute a specific task.<>
Keywords
kinematics; manipulators; position control; fine motion control; gross motion control; kinematic characteristics; local arm; reconfigurable manipulator system; redundant manipulator; robotics; task-oriented manipulability; Arm; Elbow; Ellipsoids; Force control; Jacobian matrices; Kinematics; Manipulators; Motion control; Stability; Torque;
fLanguage
English
Publisher
ieee
Conference_Titel
Advanced Robotics, 1991. 'Robots in Unstructured Environments', 91 ICAR., Fifth International Conference on
Conference_Location
Pisa, Italy
Print_ISBN
0-7803-0078-5
Type
conf
DOI
10.1109/ICAR.1991.240385
Filename
240385
Link To Document