Designing and Maturating Doppler Lidar Sensors for Gust Load Alleviation: Progress Made Since AWIATOR

Abstract

This paper gives an overview of the work performed by DLR on lidar-based gust load alleviation during the CleanSky and CleanSky 2 programmes. This work is put in relation with the work that was performed in the AWIATOR project, which is still the most advanced lidar-based gust load alleviation demonstration programme that has been undertaken in Europe. Compared to the system that was designed and demonstrated within AWIATOR, various improvements could be made by DLR and demonstrated in simulation. In order to properly evaluate the load alleviation performance for a given system (including lidar sensor, measurement processing, and load alleviation functions) and its sensitivity to the design parameters a coupled simulation environment is being developed. This environment is still an on-going development but it already permits to perform concurrent engineering studies of the complete lidar-based gust load alleviation system.