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Active Rotor Control for Helicopters: Individual Blade Control and Swashplateless Rotor Designs

Keßler, Christoph (2010) Active Rotor Control for Helicopters: Individual Blade Control and Swashplateless Rotor Designs. 36th European Rotorcraft Forum, 7.-9. September 2010, Paris, Frankreich.

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Modern helicopters still suffer from many problems that hinder a further increase in their efficiency, acceptance and hence their market share. The high level of vibrations and the noise generated by the rotor are the most important rea-sons for this. Vibrations are problematic for pilot and passenger comfort, but give also rise to an increase in maintenance effort. The high noise level limits the acceptance of helicopters in the public, e.g. landing of helicopters on or close to hospitals during Emergency Medical Services missions. High noise levels also lead to an early aural detection during military missions. Further drawbacks of helicopters are the high fuel consumption in high-speed forward flight and hence low range, limited speed of flight, etc. To overcome these drawbacks active rotor control technologies have been investigated for a long time. Many different approaches have been investigated and most of them are not being followed any more. First investigations started with so-called Higher Harmonic Control (HHC) which has been replaced by Indi-vidual Blade Control (IBC). In a previous paper motivation on active rotor control technology was recapitulated as well as achievements on HHC. This paper continues that work and gives a survey on IBC concepts and achievements. An outlook on the idea of the swashplateless helicopter concludes the paper.

Item URL in elib:https://elib.dlr.de/64675/
Document Type:Conference or Workshop Item (Paper)
Title:Active Rotor Control for Helicopters: Individual Blade Control and Swashplateless Rotor Designs
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Keßler, Christophchristoph.kessler (at) dlr.deUNSPECIFIED
Date:7 September 2010
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Active Rotor Control, Individual Blade Control, Swashplateless Rotor Designs
Event Title:36th European Rotorcraft Forum
Event Location:Paris, Frankreich
Event Type:international Conference
Event Dates:7.-9. September 2010
HGF - Research field:Aeronautics, Space and Transport (old)
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: Keßler, Christoph
Deposited On:02 Nov 2010 16:45
Last Modified:03 Nov 2010 14:53

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