Sensitivity analysis of a strongly coupled aero-structural system using the discrete direct and adjoint methods

Authors

  • Meryem Marcelet ONERA - Department of Computational Fluid Dynamics and Aeroacoustics BP 72 - 29, avenue de la division Leclerc F-92322 Châtillon cedex
  • Jacques Peter ONERA - Department of Computational Fluid Dynamics and Aeroacoustics BP 72 - 29, avenue de la division Leclerc F-92322 Châtillon cedex
  • Gérald Carrier ONERA - Applied Aerodynamics Department 8, rue des Vertugadins F-92190 Meudon

DOI:

https://doi.org/10.13052/REMN.17.1077-1106

Keywords:

shape optimization, sensitivity analysis, aeroelasticity, discrete direct differentiation method, discrete adjoint vector method

Abstract

This paper is dedicated to the sensitivity analysis of a static aeroelastic system with respect to design parameters governing its jig-shape. The gradients of interest are computed using either the discrete direct differentiation or adjoint vector methods. The aerodynamic load is predicted by the nonlinear Euler equations and transferred to the structure through a consistent and conservative procedure. The induced structural displacement field is computed using beam theory and the matrix of the aerodynamic influence coefficients. Finally, a threedimensional wing-body case is used to verify the successful implementation of the analytical sensitivity analysis methods.

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Published

2008-09-10

How to Cite

Marcelet, M. ., Peter, J. ., & Carrier, G. (2008). Sensitivity analysis of a strongly coupled aero-structural system using the discrete direct and adjoint methods. European Journal of Computational Mechanics, 17(8), 1077 to 1106. https://doi.org/10.13052/REMN.17.1077-1106

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