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Development of an Active Flap Rotor Model

Höfinger, Marc T. and Leconte, Philippe (2004) Development of an Active Flap Rotor Model. 6th ONERA-DLR Aerospace Symposium (ODAS), 2004-06-22 - 2004-06-23, Berlin (Germany).

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Abstract

The research organizations ONERA and DLR initiated a common programme supported by Eurocopter (EC) and Eurocopter Deutschland (ECD) as industry partners within the Active Blade Concept (ABC). The content is to investigate in theory and experiment the possible benefits and the phenomena associated with an actively controlled flap located at the trailing edge of a helicopter rotor blade. The main focus is put on the reduction of vibration and noise radiation of the complete helicopter rotor and the expansion of the flight enve-lope by the use of multi-frequency higher harmonic flap control. The first phase of the research programme was dedicated to the numerical assessment of flap geometry, radial location, and optimal control inputs. The simulations showed best results for a 15% chord flap, with different optimal radial locations, depending on the distur-bance considered. A more inboard flap location is most suitable for vibration reduction, while for noise reduction the best results were obtained with a more outboard position. The design, manufacturing and experimental wind tunnel testing of a 4-bladed Mach-scaled rotor model in high speed and descent flight is realized during the second phase.

Item URL in elib:https://elib.dlr.de/21192/
Document Type:Conference or Workshop Item (Paper)
Title:Development of an Active Flap Rotor Model
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Höfinger, Marc T.UNSPECIFIEDUNSPECIFIED
Leconte, PhilippeONERAUNSPECIFIED
Date:22 June 2004
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 129-140
Editors:
EditorsEmail
DLR & ONERA, UNSPECIFIED
Status:Published
Keywords:helicopter, rotorcraft, noise, vibration, active flap, rotor model, ABC, higher harmonic control, rotor blade
Event Title:6th ONERA-DLR Aerospace Symposium (ODAS)
Event Location:Berlin (Germany)
Event Type:international Conference
Event Dates:2004-06-22 - 2004-06-23
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Rotorcraft (old)
DLR - Research area:Aeronautics
DLR - Program:L RR - Rotorcraft Research
DLR - Research theme (Project):L - The Active Rotorcraft (old)
Location: Braunschweig
Institutes and Institutions:Institute of Flight Systems > Rotorcraft
Deposited By: Höfinger, Marc
Deposited On:01 Feb 2006
Last Modified:31 Jul 2019 19:16

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