Analysis of the Sound Field Structure in the Cabin of the RRJ-95NEW-100 Prototype Aircraft

The results of in-flight experiments to determine the structure sound field in cabin and pressure fluctuation fields on surface fuselage RRJ-95NEW-100 prototype aircraft are presented here. Wall spectrums obtained for three zones measuring windows (forward, center, rear fuselage) cruising flight mode. effect jet levels tail is considered. For an without interior, contribution main sources total intensity calculated through A-weighted overall determined. It has been determined that noise mode (turbulent boundary layer noise) air conditioning system. ratio between varies along length cabin.