Session 1: Aeroelastic modelling

We highlight the differences that come in the requirements for the modeling of aircraft with HARW. We will also discuss possible solutions for some of the outputs of interests that makes this class of aircraft different than the more traditional ones.

The presentation covers different topics related to nonlinear aeroelastic analysis in aircraft preliminary design. Methods for the calculation of steady (maneuver) and unsteady (gust) loads including geometrical nonlinearities - which are required for the structural optimization - are discussed. Furthermore, one of our goals is to consider aeroelastic and structural nonlinearities as early in the aircraft (preliminary) design and structural optimization process as possible.

This presentation covers a comprehensive study on the impact of model complexity on aeroelastic predictions for wings with levels of flexibility relevant to high-aspect-ratio-wing aircraft. Metrics of interest include natural frequencies, static structural and aeroelastic response, and instability onsets. The presentation ends with an outlook on areas where additional investigations are necessary to advance our understanding of how to appropriately model, analyze, and simulate very flexible wings to support the development of future high-aspect-ratio-wing aircraft.