Parametric reduced-order model approach for simulation and optimization of aeroelastic systems with structural nonlinearities

Michele Castellani, Yves Lemmens, Jonathan Cooper

Research output: Contribution to journalArticle (Academic Journal)

6 Citations (Scopus)
449 Downloads (Pure)

Abstract

A method based on parametric reduced-order models to efficiently predict the transient response of aeroelastic systems with concentrated structural nonlinearities is presented. The approach approximates the nonlinear response in a piecewise-linear manner through time integration of sub-linear reduced-order models; these are parameterized with respect to the nonlinearity and are efficiently obtained by balanced truncation and interpolation. The procedure is applied to the optimization of a wing tip device for passive loads alleviation which features a nonlinear stiffness, showing the effectiveness and efficiency of the methodology.
Original languageEnglish
Pages (from-to)1359-1370
Number of pages12
JournalProceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering
Volume230
Issue number8
Early online date8 Oct 2015
DOIs
Publication statusPublished - Jun 2016

Structured keywords

  • ALPES

Keywords

  • Aircraft loads
  • aeroelastic response
  • structural nonlinearities
  • load alleviation
  • adaptive wing tip
  • parametric reduced-order model

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