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Time-delay estimation with a fixed-time sliding mode control for uncertain rigid robot dynamics

  • Imran Ghous
  • , Saim Ahmed
  • , Ahmad Taher Azar
  • , Jyotindra Narayan
  • , Arezki Fekik
  • Prince Sultan University (PSU)
  • Imperial College London
  • University of Bayreuth
  • Indian Institute of Technology Guwahati
  • Centrale Nantes
  • Akli Mohand Oulhadj University of Bouira

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

This chapter proposes a model-independent fixed-time tracking control for nonlinear rigid robotic dynamical systems. The proposed controller design scheme utilizes time delay estimation (TDE) and a fixed-time fast terminal sliding mode control (FxFTSM). The TDE is specifically designed to estimate the unknown nonlinear dynamics of robotic manipulators, including uncertainties and bounded external disturbances. The Lyapunov criterion is used to investigate the fixed-time stability and analyze the behavior of the resultant closed-loop control system. Finally, computer simulations of the proposed method are performed on the uncertain dynamics of the 2-DOF (degree of freedom) robotic manipulator.

Original languageEnglish
Title of host publicationModeling, Dynamics and Control approaches for Modern Robotics
Editors Ahmad Taher Azar, Arezki Fekik
PublisherElsevier B.V.
Chapter5
Pages133-158
Number of pages26
Edition1
ISBN (Electronic)9780443301070
ISBN (Print)9780443301063
DOIs
Publication statusPublished - 29 Jan 2026

Keywords

  • control systems
  • fixed-time control
  • Model-independent control
  • robotic manipulators
  • robotics
  • sliding mode control
  • time delay estimation

ASJC Scopus subject areas

  • General Engineering
  • General Computer Science

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