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Nonlinear adaptive control for flexible-link manipulators

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3 Author(s)
Jung Hua Yang ; Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan ; Feng-Li Lian ; Li Chen Fu

As has been realized, the flexible-link manipulators have attracted more and more attention from robot control theorists and/or robot users because of its various potential advantages. But since the control degree-of-freedom is much less than that of the system, many control strategies which succeed in the conventional rigid robot control cannot be directly used in the flexible robot control problems. In this paper, a nonlinear control scheme has been proposed as a solution to these control problems. In particular, to cope with the existing model uncertainty, an adaptive version of this nonlinear control law has been proposed. Stability proof of the overall closed-loop system is then given via Lyapunov analysis. In addition, extensive experimental results are also provided to demonstrate the effectiveness of the proposed controller

Published in:

Robotics and Automation, IEEE Transactions on  (Volume:13 ,  Issue: 1 )