Linearized Aeroelastic Computations in the Frequency Domain Based on Computational Fluid Dynamics

TL;DR

This paper introduces a CFD-based linearized frequency domain method for aeroelastic analysis, enabling fast, accurate eigenmode computations for aircraft wings, improving upon traditional time-domain techniques.

Contribution

It presents a novel iterative, linearized CFD approach for aeroelastic eigenmode analysis in the frequency domain, enhancing computational efficiency and accuracy.

Findings

Demonstrates fast and accurate aeroelastic eigenmode computation

Shows advantages over classical time-domain methods

Validates approach with two wing configurations

Abstract

An iterative, CFD-based approach for aeroelastic computations in the frequency domain is presented. The method relies on a linearized formulation of the aeroelastic problem and a fixed-point iteration approach and enables the computation of the eigenproperties of each of the wet aeroelastic eigenmodes. Numerical experiments on the aeroelastic analysis and design optimization of two wing configurations illustrate the capability of the method for the fast and accurate aeroelastic analysis of aircraft configurations and its advantage over classical time-domain approaches.