Optimal nonlinear position tracking control of a two-link flexible-joint robot manipulator

Author(s):  
Tarek Lahdhiri ◽  
Hoda A. ElMaraghy



Robotica ◽  
1998 ◽  
Vol 16 (1) ◽  
pp. 11-21 ◽  
Author(s):  
M. S. de Queiroz ◽  
S. Donepudi ◽  
T. Burg ◽  
D. M. Dawson

In this paper, we present an experimental evaluation of several link position tracking control algorithms for rigid-link flexible-joint robot manipulators. To study the performance of the controllers, an IMI 2-link direct-drive planar robot manipulator was modified to approximate linear torsional spring couplings from the actuators to the links. Preliminary experimental results seem to indicate that reduced-order, model-based controllers with an actuator feedback loop provide relatively good link position tracking while a full-order, model-based controller offers some further improvement in link position tracking at the expense of increased computation.





2008 ◽  
Vol 41 (2) ◽  
pp. 14828-14833 ◽  
Author(s):  
Wen-Hong Zhu ◽  
Tom Lamarche


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