Vibroacoustics in aviation
Due to their high stiffness-to-weight ratio, lightweight aerospace structures do not have a favorable characteristic in terms of cabin acoustics. Excitations of the structure by the turbulent boundary layer, the engines and subsystems induce vibrations, resulting in noise impact on the passengers in the cabin. To develop targeted countermeasures, it is therefore necessary to identify vibration paths starting from vibration sources and, if possible, to quantify them. One method that might make this possible is structural intensity. The application of structural intensity in the experimental environment is investigated and new methods for the post-processing of structural intensity vector fields are developed.