Low Frequency Airplane Noise Measurement

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Presentation transcript:

Low Frequency Airplane Noise Measurement Xiao Di, Claus H. Hetzer, Ronald A. Wagstaff, and Kenneth E. Gilbert National Center for Physical Acoustics University of Mississippi, University, MS 38677 xiaodi@olemiss.edu November 3, 2008 Work Supported By The U.S. Army TACOM-ARDEC at Picatinny Arsenal, New Jersey

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Summary Airplane landing generated infrasound sound detected (60 dB-70 dB) at distance of 2 to 3 miles (over 75 occasions) Mechanism? Wingtip vortices Reverse Thrust Flaps and Spoilers More Experiments Are Planned

QUESTIONS ?