Methodology for designing aircraft having optimal sound signatures

Abhishek Sahai, Tom Van Hemelen, Dick Simons

Research output: Contribution to journalMeeting AbstractScientific

Abstract

This paper presents a methodology with which aircraft designs can be modified such that they produce optimal sound signatures on the ground. With optimal sound it is implied in this case sounds that are perceived as less annoying by residents living near airport vicinities. A novel design and assessment chain has been developed which combines the aircraft design process with an auralization and sound quality assessment capability. It is demonstrated how different commercial aircraft can be designed, their sounds auralized at representative locations in airport vicinities and subsequently assessed for sound quality. As sound quality is closely related to the perceived annoyance, it is expected that designs with improved sound quality would also be perceived as less annoying. By providing a feedback to the design optimizer in terms of one of the sound quality metrics or a suitable combination thereof, the designs of aircraft can be altered to produce potentially less annoying sounds. The paper will focus on three current aircraft and will demonstrate the application of the novel design chain to auralize and alter their sounds toward improved sound quality. The presented methodology can also be extended to unconventional aircraft configurations and propulsion concepts, for optimizing future aircraft sounds.
Original languageEnglish
Pages (from-to)3688-3688
JournalJournal of the Acoustical Society of America
Volume141
Issue number5
DOIs
Publication statusPublished - 2017
Event3rd Joint Meeting of the Acoustical Society of America and the European Acoustics Association - Boston, United States
Duration: 25 Jun 201729 Jun 2017
Conference number: 3
http://acousticalsociety.org/content/acoustics-17-boston

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