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All Journal IAES International Journal of Robotics and Automation (IJRA)
Chemseddine, Boudjedir
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Automotive Engineering Electrical & Electronics Engineering

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Switched time delay control based on neural network for fault detection and compensation in robot Dihya, Maincer; Moufid, Mansour; Chemseddine, Boudjedir; Moussaab, Bounabi
IAES International Journal of Robotics and Automation (IJRA) Vol 10, No 2: June 2021
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijra.v10i2.pp91-103

Abstract

Fault detection in robotic manipulators is necessary for their monitoring and represents an effective support to use them as independent systems. This present study investigates an enhanced method for representation of the faultless system behavior in a robot manipulator based on a multi-layer perceptron (MLP) neural network learning model which produces the same behavior as the real dynamic manipulator. The study was based on generation of residue by contrasting the actual output of the manipulator with those of the neural network; Then, a time delay control (TDC) is applied to compensate the fault, in which a typical sliding mode command is used to delete the time delay estimate produced by the belated signal in order to obtain strong performances. The results of the simulations performed on a model of the SCARA arm manipulator, showed a good trajectory tracking and fast convergence speed in the presence of faults on the sensors. In addition, the command is completely model independent, for both TDC and MLP neural network, which represents a major advantage of the proposed command.
Co-Authors Dihya, Maincer Moufid, Mansour Moussaab, Bounabi