ITA and Embraer Aeroelasticity Cooperation in Preparation for the AEPW-4

Abstract

© 2025, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.This paper showcases the collaborative efforts between ITA (academic) and Embraer (aircraft manufacturer) in developing advanced methods to address the upcoming challenges of the 4th Aeroelastic Prediction Workshop. For predicting static wing loads, a rapid conceptual design method that accounts for structural geometric nonlinearity is introduced. A matched flutter solution is proposed for control surface flutter in geometrically nonlinear wings. For predicting limit cycle oscillations, the approach combining an unsteady vortex lattice with a transient structural geometric nonlinear solver is presented. Furthermore, a framework that integrates an open-source Reynolds-Averaged Navier-Stokes solver with a geometric nonlinear structural solver is developed to handle transonic static deflections.

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