Robust discrete nonlinear feedback control for robotic manipulators
作者:
Charles P. Neuman,
Vassilios D. Tourassis,
期刊:
Journal of Robotic Systems
(WILEY Available online 1987)
卷期:
Volume 4,
issue 1
页码: 115-143
ISSN:0741-2223
年代: 1987
DOI:10.1002/rob.4620040108
出版商: Wiley Subscription Services, Inc., A Wiley Company
数据来源: WILEY
摘要:
AbstractNonlinear feedback controlalgorithms for manipulators utilize a complete (coupled and nonlinear) dynamic robot model to decouple the robot joints. In the companion article1we outlined the practical problems introduced by modeling inaccuracies, unmodeled dynamics and parameter errors. We then introduced the α‐computed‐torquenonlinear feedback control algorithm which isrobustin the presence of the aforementioned error sources. In this article, we apply the insight gained from the α‐computed‐torque algorithm to design a robust discrete‐time (accelerometer‐free) computed‐torque robot‐control algorithm founded upon our discrete dynamic robot model.2Numerical experiments with the cylindrical robot confirm both the robust disturbance rejection characteristics and the practical applicability of our discrete‐time computer‐tor
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