FAT-based robust adaptive control of flexible-joint robots: Singular perturbation approach

2017 ◽  
Author(s):  
Alireza Izadbakhsh ◽  
Milad Masoumi
Keyword(s):  
Adaptive Control ◽  
Singular Perturbation ◽  
Robust Adaptive Control ◽  
Perturbation Approach ◽  
Flexible Joint ◽  
Flexible Joint Robots ◽  
Robust Adaptive

scholarly journals Robust Adaptive Control for Coordinated Constrained Multiple Flexible Joint Manipulators with Hysteresis Loop

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Shurong Li ◽  
Zhulong Shao ◽  
Pandeng Xu ◽  
Huaiqiang Yin
Keyword(s):  
Adaptive Control ◽  
Hysteresis Loop ◽  
Sliding Mode ◽  
External Disturbance ◽  
Robust Adaptive Control ◽  
Loop Model ◽  
Parameter Uncertainties ◽  
Constraint Force ◽  
Flexible Joint ◽  
Robust Adaptive

This paper focuses on the position/force tracking control problem for constrained multiple flexible joint manipulators system with nonlinear input of hysteresis loop. Firstly, the dynamic model is given in the task space and the input of hysteresis loop model is approximated by a differential equation. Secondly, considering the disturbance with unknown bounds, a robust adaptive control strategy based on the sliding mode which consists of constraint force error and position error is designed. The proposed approach can not only compensate the model error, external disturbance, and flexible parameter uncertainties, but also drive the closed-loop system variables to reach the sliding model surface. Then it can be proved that both position and constraint force errors can be guaranteed to converge to zero. Finally, the simulation results can verify the effectiveness of the proposed method.

Robust Adaptive Control of Flexible Joint Manipulators

Automatica ◽  
1998 ◽  
Vol 34 (5) ◽  
pp. 609-615 ◽  
Author(s):  
SANDEEP JAIN ◽  
FARSHAD KHORRAMI
Keyword(s):  
Adaptive Control ◽  
Robust Adaptive Control ◽  
Flexible Joint ◽  
Robust Adaptive
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