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Adaptive Control for Nonlinearly Parameterized Uncertainties in Robot Manipulators

Identifieur interne : 008E90 ( Main/Exploration ); précédent : 008E89; suivant : 008E91

Adaptive Control for Nonlinearly Parameterized Uncertainties in Robot Manipulators

Auteurs : N. V. Q. Hung [Japon] ; H. D. Tuan [Australie] ; T. Narikiyo [Japon] ; P. Apkarian [France]

Source :

RBID : Pascal:08-0277113

Descripteurs français

English descriptors

Abstract

-In this brief, a new adaptive control framework to compensate for uncertain nonlinear parameters in robot manipulators is developed. The designed adaptive controllers possess a linear parameter structure, guarantee global boundedness of the closed-loop system as well as tracking of a given trajectory within any prescribed accuracy. Our design approach takes advantage of a Lipschitzian property with respect to the plant nonlinear parameters. The outcome is that a very broad class of nonlinearly parameterized adaptive control problems for robot manipulators can be solved using this technique. Another feature of the proposed method is the design of low-dimensional estimator, even 1-D if desired, independently of the unknown parameter vector dimension. Simulations and experiments in friction compensation task for low-velocity tracking of a 2 degree-of-freedom planar robot demonstrate the viability of the technique and emphasize its advantages relatively to more classical approaches.


Affiliations:


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Le document en format XML

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