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From Aeroacoustics Basic Research to a Modern Low Noise Rotor Blade

van der Wall, Berend G. and Keßler, Christoph and Delrieux, Yves and Beaumier, Philippe and Gervais, Marc and Hirsch, Jean-Francois and Pengel, Kurt and Crozier, Pascal (2017) From Aeroacoustics Basic Research to a Modern Low Noise Rotor Blade. Journal of the American Helicopter Society, 62 (4), pp. 1-16. American Helicopter Society. doi: 10.4050/JAHS.62.042001. ISSN 0002-8711.

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In 2015, Airbus Helicopters unveiled the secrecy around its Dauphin successor and presented the all new H160 helicopter. A special feature that immediately attracted attention was its unusual and revolutionary fore-aft swept main rotor blade. This design, which aims to significantly reduce the blade-vortex interaction noise signature and reduce high-speed forward flight power requirements, was first investigated in the 1990s. At this time, DLR and ONERA formed a joint team to acoustically optimize a rectangular reference rotor blade. Based on state-of-the-art comprehensive rotor codes and a 50/50 work share, the ERATO rotor blade design was developed, patented worldwide and tested on both a rotor test rig and in the wind tunnel. Airbus Helicopters (then: Eurocopter) adopted the design, optimized hover and forward flight high lift performance and prepared it for serial production, as the Blue EdgeTM rotor blade on the Airbus Helicopters H160 helicopter.

Item URL in elib:https://elib.dlr.de/104986/
Document Type:Article
Title:From Aeroacoustics Basic Research to a Modern Low Noise Rotor Blade
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
van der Wall, Berend G.berend.vanderwall (at) dlr.dehttps://orcid.org/0000-0001-6144-0921
Keßler, Christophchristoph.kessler (at) dlr.deUNSPECIFIED
Gervais, MarcAirbus HelicoptersUNSPECIFIED
Hirsch, Jean-FrancoisAirbus HelicoptersUNSPECIFIED
Date:August 2017
Journal or Publication Title:Journal of the American Helicopter Society
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.4050/JAHS.62.042001
Page Range:pp. 1-16
Publisher:American Helicopter Society
Keywords:rotor blade design, low noise rotor blade, wind tunnel test, flight test, Blue Edge rotor blade
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:rotorcraft
DLR - Research area:Aeronautics
DLR - Program:L RR - Rotorcraft Research
DLR - Research theme (Project):L - The Innovative Rotorcraft (old)
Location: Braunschweig , other
Institutes and Institutions:Institute of Flight Systems > Rotorcraft
German-Dutch Windtunnels
Deposited By: van der Wall, Prof. Dr. Berend G.
Deposited On:22 Aug 2017 11:35
Last Modified:08 Mar 2018 18:45

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