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STAR Hovering Test - Proof of Functionality and Representative Results -

Hoffmann, Frauke and Schneider, Oliver and van der Wall, Berend G. and Keimer, Ralf and Kalow, Steffen and Bauknecht, Andre and Ewers, Benjamin and Pengel, Kurt and Feenstra, Gerrit (2014) STAR Hovering Test - Proof of Functionality and Representative Results -. 40th European Rotorcraft Forum, 02.Sep. - 05.Sep. 2014, Southampton, United Kingdom.

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Official URL: http://aerosociety.com/About-Us/specgroups/Rotorcraft/ERF-2014


Within the DLR project AcTOR (Active Twist Optimized Rotor), a four-bladed, fully instrumented active twist model rotor was built. This active twist rotor was supposed to be tested in the LLF (Low Speed Facility) of DNW within the framework of the international STAR (Smart-Twisting Active Rotor) consortium. The STAR consortium is composed of ONERA, NASA, US~Army AFDD, JAXA, Konkuk University, KARI, and DNW. In preparation to the planned DNW wind tunnel tests, a comprehensive preparatory test was conducted at the rotor preparation hall of DLR. The aim of this test had been the proof of functionality for the complete wind tunnel model with emphasis on active twist and blade performance. Besides basic rotor data, also advanced data concerning blade deformation and vortex properties for hover applications with and without active twist were aquired. Although, the functionality of the active twist blades and the rotor test stand could be demonstrated successfully, endurance problems occured during the test and hindered the project from a wind tunnel entry. Nevertheless, a comprehensive data base on an active twist model rotor in hover has been gained. The paper provides an overview of the preparatory test and presents representative results.

Item URL in elib:https://elib.dlr.de/90759/
Document Type:Conference or Workshop Item (Speech)
Title:STAR Hovering Test - Proof of Functionality and Representative Results -
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Hoffmann, Fraukefrauke.hoffmann (at) dlr.deUNSPECIFIED
Schneider, Oliveroliver.schneider (at) dlr.deUNSPECIFIED
van der Wall, Berend G.berend.vanderwall (at) dlr.deUNSPECIFIED
Keimer, Ralfralf.keimer (at) dlr.deUNSPECIFIED
Kalow, Steffensteffen.kalow (at) dlr.deUNSPECIFIED
Bauknecht, Andreandre.bauknecht (at) dlr.deUNSPECIFIED
Ewers, Benjaminbenjamin.ewers (at) dlr.deUNSPECIFIED
Pengel, Kurtkurt.pengel (at) dnw.aeroUNSPECIFIED
Feenstra, Gerritgerrit.feenstra (at) dnw.aeroUNSPECIFIED
Date:September 2014
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 1-19
Series Name:Conference Proceedings online
Keywords:Active Twist, Rotor Blade, STAR, Hovering Test
Event Title:40th European Rotorcraft Forum
Event Location:Southampton, United Kingdom
Event Type:international Conference
Event Dates:02.Sep. - 05.Sep. 2014
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 , Göttingen
Institutes and Institutions:Institute of Flight Systems > Rotorcraft
Institute of Composite Structures and Adaptive Systems > Adaptronics
Institute of Aerodynamics and Flow Technology > Helicopters
Deposited By: Hoffmann, Frauke
Deposited On:29 Sep 2014 08:17
Last Modified:05 Nov 2014 11:39

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