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 :
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