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Almost 40 Years of Airframe Noise Research: What did we Achieve?

Dobrzynski, Werner (2010) Almost 40 Years of Airframe Noise Research: What did we Achieve? Journal of Aircraft, Vol. 47 (2), Seiten 353-367. American Institute of Aeronautics and Astronautics (AIAA). doi: 10.2514/1.44457.

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Kurzfassung

With the advent of low noise high bypass ratio turbofan engines airframe noise gained significant importance with respect to the overall aircraft noise impact around airports. Already around 1970 airframe noise, originating from flow around the landing gears and high-lift devices, was recognized as a potential “lower aircraft noise barrier” at approach and landing. Since then, the outcome of extensive acoustic flight tests and aeroacoustic wind tunnel experiments enabled a detailed description and ranking of the major airframe noise sources and the development of noise reduction means. In the last decade advances in numerical and experimental tools led to a better understanding of complex noise source mechanisms. Efficient noise reduction technologies were developed for landing gears while the benefits of high-lift noise reduction means were often compensated by a simultaneous degradation in aerodynamic performance. The focus of this paper is not on the historical sequence of airframe noise research but rather aims to provide a concise survey of the achievements in airframe noise source description and reduction over the last 40 years worldwide. Due to the vast amount of work focused on a variety of airframe noise problems, this review can only provide examples but does not claim to be complete.

elib-URL des Eintrags:https://elib.dlr.de/63799/
Dokumentart:Zeitschriftenbeitrag
Titel:Almost 40 Years of Airframe Noise Research: What did we Achieve?
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Dobrzynski, WernerDLRNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:April 2010
Erschienen in:Journal of Aircraft
Referierte Publikation:Ja
Open Access:Nein
Gold Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Ja
Band:Vol. 47
DOI:10.2514/1.44457
Seitenbereich:Seiten 353-367
Verlag:American Institute of Aeronautics and Astronautics (AIAA)
Status:veröffentlicht
Stichwörter:Airframe noise, high-lift devices noise, landing gear noise, aerodynamic noise sources, noise reduction technologies
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Luftfahrt
HGF - Programmthema:L VU - Luftverkehr und Umwelt (alt)
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L VU - Luftverkehr und Umwelt
DLR - Teilgebiet (Projekt, Vorhaben):L - Leiser Luftverkehr (alt)
Standort: Braunschweig
Institute & Einrichtungen:Institut für Aerodynamik und Strömungstechnik > Technische Akustik
Hinterlegt von: Dobrzynski, Dr.-Ing. Werner
Hinterlegt am:06 Apr 2010 10:54
Letzte Änderung:08 Mär 2018 18:40

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