Preliminary Results on the Development of an Aircraft Cabin N&V Simulator

In order to generate in-flight acoustic and vibration fields inside an aircraft cabin mock-up, an N&V simulator was developed. The preliminary work on the development, setup and characterization of the N&V simulator will be presented. Firstly, an overview of the system will be given, including the desired input signals, followed by the presentation of the control software, which was developed to simplify the operation of the system by end users during routine testing. Secondly, the set-up strategy to adjust the reproduction of levels and spectrum of both acoustic and vibration fields will be presented, along with comparative vibroacoustics results between the mock-up and original in-flight recordings. Finally, a discussion on different methods for adjusting the simulator reproduction by means of optimal filtering is made, and further developments are presented.