Acoustics @SRW

DFRC waves:
~ interior and exterior rotorcraft noise generation, propagation and control
~ external noise prediction methods for manned and unmanned rotorcraft
~ improved acoustic propagation models
~ psychoacoustics analysis of rotorcraft noise
~ interior noise prediction methods
~ active/passive noise control applications for rotorcraft
~ engine and transmission noise reduction
~ advanced acoustic measurement systems for flight and wind tunnel applications
~ acoustic data acquisition/reduction/analysis
~ rotor noise reduction techniques
~ noise abatement flight operations
~ rotor noise, including broadband, harmonic, blade-vortex interaction, high-speed impulsive
~ alternate tail rotor and auxiliary power concepts
~ rotor/tail rotor
~ rotor/rotor interactional noise
~ frequency range including not only audible range, but very low frequency rotational noise (blade-passage frequency below 20 Hz) as well
~ optimized active/passive concepts and noise tailoring, including rotorcraft designs that are inherently designed for lower noise as a constraint.


catch ~>Subsonic Rotary Wing !