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Toward Reduced Aircraft Community Noise Impact Via a Perception-Influenced Design ApproachThis is an exciting time for aircraft design. New configurations, including small multi-rotor uncrewed aerial systems, fixed- and tilt-wing distributed electric propulsion aircraft, high-speed rotorcraft, hybrid-electric commercial transports, and low-boom supersonic transports, are being made possible through a host of propulsion and airframe technology developments. The resulting noise signatures may be radically different, both spectrally and temporally, than those of the current fleet. Noise certification metrics currently used in aircraft design do not necessarily reflect these characteristics and therefore may not correlate well with human response. Further, as operations and missions become less airport-centric, e.g., those associated with on-demand mobility or package delivery, vehicles may operate in closer proximity to the population than ever before. Fortunately, a new set of tools are available for assessing human perception during the design process in order to affect the final design in a positive manner. The tool chain utilizes system noise prediction methods coupled with auralization and psychoacoustic testing, making possible the inclusion of human response to noise, along with performance criteria and certification requirements, into the aircraft design process. Several case studies are considered to illustrate how this approach could be used to influence the design of future aircraft.
Document ID
20160011152
Acquisition Source
Langley Research Center
Document Type
Conference Paper
Authors
Rizzi, Stephen A.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 9, 2016
Publication Date
August 21, 2016
Subject Category
Acoustics
Aircraft Design, Testing And Performance
Report/Patent Number
NF1676L-23666
Meeting Information
Meeting: Inter-Noise 2016 Conference
Location: Hamburg
Country: Germany
Start Date: August 21, 2016
End Date: August 24, 2016
Funding Number(s)
WBS: WBS 109492.02.07.01.10
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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