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Reduction of Helicopter Blade-Vortex Interaction Noise by Active Rotor Control Technology

Yu, Y.H. and Gmelin, B. and Splettstößer, W.R. and Philippe, J.J. and Prieur, J. and Brooks, T.F. (1997) Reduction of Helicopter Blade-Vortex Interaction Noise by Active Rotor Control Technology. Progress in Aerospace Science, 33 (1), pp. 647-687.

Full text not available from this repository.

Abstract

Helicopter-blade-vortex interaction noise is one of the most severe noise sources and is very important both in community annoyance and military detection. Research over the decades has substantially improved basic physical understanding of the mechanisms generating rotor blade-vortex interaction noise and also of controlling techniques, particularly using active rotor control technology. This paper reviews active rotor control techniques currently available for rotor blade-vortex interaction noise reduction, including higher harmonic pitch control, individual blade control, and on-blade control technologies. Basic physical mechanisms of each active control technique are reviewed in terms of noise reduction mechanism and controlling aerodynamic or structural parameters of a blade. Active rotor control techniques using smart actuators to induce local torsional or flapping deformations.

Document Type:Article
Additional Information: LIDO-Berichtsjahr=1999,
Title:Reduction of Helicopter Blade-Vortex Interaction Noise by Active Rotor Control Technology
Authors:
AuthorsInstitution or Email of Authors
Yu, Y.H.UNSPECIFIED
Gmelin, B.UNSPECIFIED
Splettstößer, W.R.UNSPECIFIED
Philippe, J.J.UNSPECIFIED
Prieur, J.UNSPECIFIED
Brooks, T.F.UNSPECIFIED
Date:1997
Journal or Publication Title:Progress in Aerospace Science
Refereed publication:Yes
In ISI Web of Science:Yes
Volume:33
Page Range:pp. 647-687
Status:Published
Keywords:BVI Noise, Active Rotor Control, BVI Noise Reduction by HHC and IBC, Higher Harmonic Blade Control (HHC), Individual Blade Control (IBC), Smart Active Rotor Control
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
Deposited By: Claudia Grant
Deposited On:16 Sep 2005
Last Modified:14 Jan 2010 19:58

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