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Higher harmonic Control Aeroacustic Rotor Test (HART) - Test Documentation and Representative Results

Splettstößer, W.R. and Kube, R. and Seelhorst, U. and Wagner, W. and Boutier, A. and Micheli, F. and Pengel, K. (1996) Higher harmonic Control Aeroacustic Rotor Test (HART) - Test Documentation and Representative Results. DLR-Interner Bericht. 129-95/28, 445 S.

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Abstract

In a major cooperative research program within existing US-German and US-French Memoranda of Understandings (MoU's) a very comprehensive experimental study was conducted with a 40-percent geometrically and dynamically scaled BO-105 main rotor operated in the open-jet anechoic test section of the German-Dutch-Wind Tunnel (DNW). The objectives of the program were to improve the physical understanding and the mathematical modelling of the effects of the higher harmonic blade pitch control technique on blade-vortex interaction (BVI) impulsive noise and vibration reduction. A unique set of acoustic, aerodynamic, dynamic response, performance, and rotor vortex wake data were acquired with a pressure and strain gauge instrumented blade and by application of non-intrusive measurement techniques. This report documents the experimental part of this research program, termed Higher-harmonic-control Aeroacustic Rotor Test (HART) which was jointly performed by researchers from.

Document Type:Monograph (DLR-Interner Bericht)
Additional Information: LIDO-Berichtsjahr=1996,
Title:Higher harmonic Control Aeroacustic Rotor Test (HART) - Test Documentation and Representative Results
Authors:
AuthorsInstitution or Email of Authors
Splettstößer, W.R.UNSPECIFIED
Kube, R.Institut für Flugmechanik
Seelhorst, U.Institut für Strömungsmechanik
Wagner, W.Institut für Aeroelastik
Boutier, A.ONERA
Micheli, F.ONERA
Pengel, K.DNW
Date:1996
Number of Pages:445
Status:Published
Keywords:Rotor noise, BVI noise, rotor impulsive noise, rotor reduction, higher harmonic blade conrol (HHC), rotor aerodynamics
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L DT - Drehflüglertechnologien
DLR - Research theme (Project):L - The Quiet and Comfortable Rotorcraft
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Institut für Entwurfsaerodynamik
Institute of Flight Systems > Institut für Flugmechanik
Institute of Aerodynamics and Flow Technology > Institut für Strömungsmechanik
Institute of Aeroelasticity
Deposited By: elib DLR-Beauftragter
Deposited On:03 Apr 2006
Last Modified:27 Apr 2009 10:06

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