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Backstepping control for gear transmission servo systems with unknown partially nonsymmetric deadzone nonlinearity

  • Beihang University
  • China Aerospace Science and Industry Corporation

Research output: Contribution to journalArticlepeer-review

Abstract

This paper deals with the output tracking control of gear transmission servo (GTS) systems in the presence of deadzone nonlinearity with nonsymmetric beak points and unknown parameters. A novel differentiable deadzone model with nonsymmetric break points is put forward, which greatly facilitates the control design for a class of mechanical systems in the presence of deadzone nonlinearity. A new smooth backstepping controller, based on the newly-developed model, is proposed for the nominal system. Then, guaranteed robust steady-state performance of the closed-loop system with parametric uncertainties is derived by using Lyapunov analysis for the perturbed nonlinear systems. Simulations are carried out to validate the proposed algorithm and analysis in this paper.

Original languageEnglish
Pages (from-to)2580-2589
Number of pages10
JournalProceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science
Volume231
Issue number14
DOIs
StatePublished - 1 Jul 2017

Keywords

  • Backlash
  • backstepping control
  • deadzone
  • robust analysis
  • transmission systems

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