Sensitivity analysis and design optimization of three-dimensional non-linear aeroelastic systems by the adjoint method

K. Maute, M. Nikbay, C. Farhat

Research output: Contribution to journalArticlepeer-review

126 Citations (Scopus)

Abstract

We consider the problem of optimizing a non-linear aeroelastic system in steady-state conditions, where the structure is represented by a detailed finite element model, and the aerodynamic loads are predicted by the discretization of the non-linear Euler equations. We present a solution method for this problem that is based on the three-field formulation of fluid-structure interaction problems, and the adjoint approach for coupled sensitivity analysis. We discuss the computational complexity of the proposed solution method, describe its implementation on parallel processors, and illustrate its computational efficiency with the acroelastic optimization of various wings.

Original languageEnglish
Pages (from-to)911-933
Number of pages23
JournalInternational Journal for Numerical Methods in Engineering
Volume56
Issue number6
DOIs
Publication statusPublished - 14 Feb 2003
Externally publishedYes

Keywords

  • Adjoint method
  • Aeroelastic optimization
  • Fluid-structure interaction
  • Sensitivity analysis

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