A Gust Reconstruction Framework Applied to a Nonlinear Reduced Order Model of a Wing Typical Section

Gust and turbulence events are of primary importance in the estimation of limit loads and in the analysis of flight incidents. Aircraft manufacturers are putting effort into the study of gust reconstruction as it is beneficial during the design stages of the aircraft and for in-service support. The proposed gust reconstruction is demonstrated for the aeroelastic model of a wing typical section, assessing the impact that structural nonlinearities have on both the response to discrete gust and continuous turbulence models and on the reconstructed gust profiles. Furthermore, the application to an already-proved systematic reduced order model technique is addressed to speed-up the reconstruction process. Results show that the method proved satisfactory both in the linear and nonlinear cases thus providing a potential solution to the problem of dealing with nonlinearities, which is a particular limitation of direct methods.