Active aeroelastic control of 2-D wing-flap systems operating in an incompressible flowfield and impacted by a blast pulse

Liviu Librescu, Sungsoo Na, Piergiovanni Marzocca, Chanhoon Chung, Moon K. Kwak

Research output: Contribution to journalArticlepeer-review

43 Citations (Scopus)

Abstract

This paper concerns the active aeroelastic control of 2-D wing-flap systems operating in an incompressible flowfield and exposed to a blast pulse. The goal is to implement an active flap control capability to suppress the flutter instability and enhance the subcritical aeroelastic response to time-dependent external pulses. To this end, a combined control law is implemented and its performances toward suppressing flutter and reducing the vibrational level in the subcritical flight speed range is demonstrated.

Original languageEnglish
Pages (from-to)685-706
Number of pages22
JournalJournal of Sound and Vibration
Volume283
Issue number3-5
DOIs
Publication statusPublished - 2005 May 20

Bibliographical note

Funding Information:
L. Librescu and P. Marzocca would like to acknowledge the partial support by the NASA Langley Research Center through Grant NAG-1-02-011. S.S. Na and M.K. Kwak also acknowledge the partial support by the Basic Research Program of the Korea Science and Engineering Foundation, Grant No. R01-2002-000-00129-0. The authors express their indebtedness to the anonymous reviewers for the constructive comments and suggestions that have contributed to the improvement of the paper.

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Acoustics and Ultrasonics
  • Mechanical Engineering

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