Sliding mode robust control of supersonic three degrees-of-freedom airfoils

Bok Hee Lee, Jeong Hwan Choo, Sungsoo Na, Piergiovanni Marzocca, Liviu Librescu

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


The robust aeroelastic control of a three-degrees-of-freedom (3DOF) linear and non-linear wing-flap system under sliding mode control (SMC) and operation in supersonic flight speeds is presented. Open- and closed-loop aeroelastic responses to blast and sonic-boom excitation in the wingflap system with uncertainty, as well as flutter analysis, are investigated along with the implementation of a Sliding Mode Observer (SMO). The effectiveness of control in reducing the amplitude of oscillation and preventing flutter instability is demonstrated.

Original languageEnglish
Pages (from-to)279-288
Number of pages10
JournalInternational Journal of Control, Automation and Systems
Issue number2
Publication statusPublished - 2010 Apr


  • 3DOF airfoil system
  • Aeroelasticity
  • Sliding mode control
  • Sliding mode observer

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Computer Science Applications


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