LOCALIZING AIRCRAFT NOISE SOURCES WITH LARGE SCALE ACOUSTIC ANTENNA

摘要

The context of localisation tests is external noise campaigns for aircraft development purpose. Several extra flights are necessary with standard external noise tests to solve an acoustic exterior noise problem detected on ground. Localization tests produce a new type of results: they give access to the acoustic radiating energy distribution on the aircraft itself in the different flight configurations. For this study, Airbus has worked with EADSIW on quantification techniques and Company MicrodB to develop processing software. Airbus has set as an objective to develop a mobile and modular tool that could be installed in less than two days in any of the usual measurement sites for external noise.