Seminar: Aircraft Noise Reduction

Dennis Huff, NASA Glenn

All dates for this event occur in the past.

N056 Scott Lab
N056 Scott Lab
201 W. 19th Ave.
Columbus, OH 43210
United States

Abstract:

There has been considerable progress made in aircraft noise reduction since the introduction of the turbofan engine in the 1960s.  Engine architectures have changed that improve noise and performance characteristics.  The airframes are more efficient that increasing payload and range with less impact on the environment.  This presentation will highlight the noise issues that still remain for aircraft and engine design.  A summary of all components contributing to the overall noise levels will be given with examples of noise reduction technologies that have been either implemented or ready for consideration in the design process.  The primary noise sources include fans, turboprops, jets, wing trailing-edges, landing gear, slats and flaps.  Noise regulations will be discussed including the new “Chapter 14” rule that will be implemented at the end of this decade.  Examples of successful technology development projects will be highlighted that have been applied to new aircraft and engines.  Finally, several advanced vehicle concepts will be presented that are being developed through NASA aeronautics research programs.

About the Speaker:

Dennis L. Huff is a Research Aerospace Engineer in the Acoustics Branch at the National Aeronautics and Space Administration (NASA) John H. Glenn Research Center at Lewis Field in Cleveland, Ohio. Previously, Huff was Deputy Chief of the Aeropropulsion Division and Chief of the Acoustics Branch, and led teams from NASA, industry, and universities to develop engine-noise-reduction technologies. Projects included chevron nozzles and swept/leaned stators that have been proven to reduce jet and fan noise and are being implemented by industry. Huff began his NASA career in 1985 as a researcher for Glenn’s Propeller and Acoustics Branch. Huff received both Bachelor’s and Master’s degrees in Mechanical Engineering from the University of Akron. He was awarded the NASA Exceptional Service Medal in 2002 and the NASA Medal for Outstanding Leadership in 2005 and 2014. Huff was the Chairman of the Aeroacoustics Technical Committee of the American Institute of Aeronautics and Astronautics (AIAA) and served on a Naval Research Advisory Committee (NRAC) on jet engine noise reduction.

Hosted by Professor Meyer Benzakein