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The First Wind Tunnel Test of the Multiple Swashplate System: Test Procedure and Principal Results

Küfmann, Philip and Bartels, Rainer and van der Wall, Berend G. and Schneider, Oliver and Holthusen, Hermann and Gomes, Jorge (2017) The First Wind Tunnel Test of the Multiple Swashplate System: Test Procedure and Principal Results. Journal of the American Helicopter Society, 62 (4), pp. 1-13. American Helicopter Society. DOI: 10.4050/JAHS.62.042002 ISSN 0002-8711

Full text not available from this repository.

Abstract

In September 2015, the DLR completed the first wind tunnel test of its patented Multiple Swashplate System in the DNW's Large Low-Speed Facility in the Netherlands. During these tests, the potential of this new active rotor control system to effectively reduce noise, vibration, and power consumption using several individual blade control strategies, including 2/rev inputs, was successfully demonstrated on two different model rotors without using actuators in the rotating frame. For a Mach-scaled Bo105 model, rotor power reductions of up to 4% in level flight and reductions of the weighted 4/rev vibratory hub loads of up to 77% in a descent flight condition were measured, and BVI noise levels were reduced by up to 4.5 dB by the application of 3/rev higher harmonic control, confirming findings from the HART II test. For the second model rotor using a contemporary blade geometry, the maximum reductions were measured at 3%, 52%, and 3.9 dB for power, vibration, and BVI noise, respectively.

Item URL in elib:https://elib.dlr.de/114309/
Document Type:Article
Title:The First Wind Tunnel Test of the Multiple Swashplate System: Test Procedure and Principal Results
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Küfmann, Philipft-hubhttps://orcid.org/0000-0003-0932-3247
Bartels, RainerUNSPECIFIEDUNSPECIFIED
van der Wall, Berend G.berend.vanderwall (at) dlr.dehttps://orcid.org/0000-0001-6144-0921
Schneider, Oliveroliver.schneider (at) dlr.dehttps://orcid.org/0000-0002-0229-0756
Holthusen, Hermanndnw, netherlandsUNSPECIFIED
Gomes, Jorgednw, netherlandsUNSPECIFIED
Date:21 August 2017
Journal or Publication Title:Journal of the American Helicopter Society
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:62
DOI :10.4050/JAHS.62.042002
Page Range:pp. 1-13
Publisher:American Helicopter Society
ISSN:0002-8711
Status:Published
Keywords:HHC, IBC, Multiple Swashplate System, helicopter, Vibration control, noise reduction
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 Quiet und Comfortable Rotorcraft, L - The Innovative Rotorcraft
Location: Braunschweig
Institutes and Institutions:Institute of Flight Systems > Rotorcraft
Deposited By: Küfmann, Philip
Deposited On:25 Oct 2017 16:23
Last Modified:10 Apr 2018 08:48

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