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Overview
The Structural Acoustics Branch conducts research to understand and control interior noise and its effects on aircraft, rotorcraft, and spacecraft structures, passengers, and crew. The Structural Acoustics Branch develops advanced active and passive noise control concepts for vehicles of conventional, advanced metallic and composite materials. Also, Structural Acoustics Branch personnel conduct research to understand, predict, and control the response of vehicle structures of advanced metallic and composite materials to intense acoustic loads, for acoustic fatigue avoidance. The Structural Acoustics Branch conducts atmospheric propagation research to improve prediction of generated noise and sonic booms at long distances. Branch personnel perform experiments and analyses to improve understanding and predict the magnitude of noise reduction as a result of specialized duct absorbing materials for both engine inlets and hot engine exhausts. The Branch conducts subjective acoustics research aimed at establishing verified, quantifiable noise criteria for community noise impact and passenger comfort and acceptance. The research utilizes unique facilities for simulating the noise and vibration environments of flight structures as well as passenger and crew compartments. |
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to the No Fear Act