Dead Zone Compensation and Adaptive Vibration Control of Uncertain Spatial Flexible Riser Systems

Zhijia Zhao, Choon Ki Ahn, Han Xiong Li

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)

Abstract

This article provides a framework of dead zone compensation and robust adaptive vibration control for uncertain spatial flexible riser systems. First, nonsymmetric dead zone nonlinearity is represented in the form of the desired control input with the addition of an extra nonlinear input error. Second, by visualizing those input errors and extrinsic disturbances as an unknown 'disturbance-like' term, a new robust adaptive vibration control technology and online updating laws can be constructed for riser systems to guarantee the oscillation reduction and compensation of uncertainties and dead zone. Third, the constructed control ensures and achieves bounded Lyapunov stability in the controlled system. Ultimately, control performances are demonstrated with appropriate design parameters.

Original languageEnglish
Article number9006909
Pages (from-to)1398-1408
Number of pages11
JournalIEEE/ASME Transactions on Mechatronics
Volume25
Issue number3
DOIs
Publication statusPublished - 2020 Jun

Keywords

  • Boundary control
  • flexible risers
  • input dead zone
  • robust adaptive control
  • vibration control

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Computer Science Applications
  • Electrical and Electronic Engineering

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