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IBC Effects on BVI Noise and Vibrations - A Combined Numerical and Experimental Investigation

Kube, R. and van der Wall, Berend G. and Schultz, K.-J. and Splettstoeßer, W. (1999) IBC Effects on BVI Noise and Vibrations - A Combined Numerical and Experimental Investigation. In: 55th Annual Forum Proceedings, 2, pp. 2282-2291. AHS 55th Annual Forum, Montreal (can), May 25 - 27, 1999.

Full text not available from this repository.

Abstract

In order to explore the potential of Individual Blade Root Control (IBC) for vibration and Blade-Vortex Interaction (BVI) noise reduction, a flight test program was jointly performed by Eurocopter Deutschland (ECD), ZF Luftfahrttechnik (ZFL), Daimler-Benz (DB) and Deutsches Zentrum für Luft- und Raumfahrt (DLR). The tests were conducted with a BO105 helicopter featuring a powerful blade root actuation system and a comprehensive sensor instrumentation. The test matrix covered a wide range of BVI flight conditions with a systematic variation of IBC settings for numerous advance ratios and descent angles. The resulting data demonstrated the strong IBC potential for a reduction of the rotor induced vibrations and BVI noise emissions. Within a combined numerical and experimental investigation the mechanism leading to this vibration and BVI noise reduction was identified and a physical explanation was given.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2000,
Title:IBC Effects on BVI Noise and Vibrations - A Combined Numerical and Experimental Investigation
Authors:
AuthorsInstitution or Email of Authors
Kube, R.Institut für Flugmechanik
van der Wall, Berend G.Institut für Flugmechanik
Schultz, K.-J.Institut für Entwurfsaerodynamik
Splettstoeßer, W.Institut für Entwurfsaerodynamik
Date:1999
Journal or Publication Title:55th Annual Forum Proceedings
Volume:2
Page Range:pp. 2282-2291
Editors:
EditorsEmail
AHS International, UNSPECIFIED
Status:Published
Keywords:BVI Noise, IBC Effects, Rotor Noise reduction
Event Title:AHS 55th Annual Forum, Montreal (can), May 25 - 27, 1999
Organizer:American Helicopter Society (AHS)
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):UNSPECIFIED
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Flight Systems > Institut für Flugmechanik
Institute of Aerodynamics and Flow Technology > Institut für Entwurfsaerodynamik
Deposited By: elib DLR-Beauftragter
Deposited On:16 Sep 2005
Last Modified:14 Jan 2010 20:11

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