Dynamic aeroelastic response and active control of composite thin-walled beam structures in compressible flow

Sungsoo Na, Ji Seok Song, Jeong Hwan Choo, Zhanming Qin

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The dynamic aeroelastic response and its active control of composite beam structures in compressible flow and exposed to gust and explosive type loads are examined. Modeling of the structures is based on a refined composite thin-walled beam theory and incorporate a number of nonclassical effects, such as transverse shear, material anisotropy, warping inhibition, and rotatory inertia. The unsteady compressible aerodynamic loads for arbitrary small motion in the time domain are derived based on the concept of indicial functions. The sliding mode control (SMC) and linear-quadratic Gaussian (LQG) control methodology with sliding mode observer are used for the purpose of control. The beam structures are restricted to circumferentially asymmetric lay-up construction and the influence of ply angle, flight speed, and external excitations on the response and its active control are specifically investigated. A number of conclusions are outlined at the end.

Original languageEnglish
Pages (from-to)4998-5013
Number of pages16
JournalJournal of Sound and Vibration
Volume330
Issue number21
DOIs
Publication statusPublished - 2011 Oct 10

ASJC Scopus subject areas

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

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