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Experiments in nonlinear adaptive control of multi-manipulator free-flying robots

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2 Author(s)
V. W. Chen ; Real-Time Innovations Inc., Sunnyvale, CA, USA ; R. H. Cannon

This paper gives an overview of the nonlinear adaptive control work that was completed at the Stanford University Aerospace Robotics Laboratory (ARL) in December 1992. A new task-space adaptive control framework was developed that is able to provide continuously full adaptation capability to complex robot systems in all modes of operation. This framework consists of an inverse-dynamics adaptation algorithm that has been generalized beyond simple joint or endpoint control, a new system modelling technique to simplify the generation of a system model to ease greatly the implementation of the adaptive control algorithm, and the development of the task-space concept to allow operators to specify a robot's task, which can include payload positions, endpoint positions, and joint configurations as subsets. The task-space adaptive control framework has been experimentally demonstrated on the ARL Multi-Manipulator, Free-Flying Space Robot performing capture and manipulation of free-floating objects with unknown inertial properties-without requiring human assistance

Published in:

Robotics and Automation, 1994. Proceedings., 1994 IEEE International Conference on

Date of Conference:

8-13 May 1994