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Manufacturing and testing of a variable chord extension for helicopter rotor blades

Balzarek, Christoph and Kalow, Steffen and Riemenschneider, Johannes and Rivero, Andres (2022) Manufacturing and testing of a variable chord extension for helicopter rotor blades. Actuators. Multidisciplinary Digital Publishing Institute (MDPI). doi: 10.3390/act11020053. ISSN 2076-0825.

Full text not available from this repository.

Official URL: https://www.mdpi.com/2076-0825/11/2/53/pdf


Helicopters are still an indispensable addition to aviation in this day and age. They are characterized by their ability to master both forward flight and hover. These characteristics result in a wide range of possible operations. Key for the design of the rotor blades is a blade design that always represents a compromise between the different flight conditions, which enables save and efficient flight in the various flight conditions. In order to operate the rotor blade even more efficient in all flight conditions, a new morphing concept, the so-called linear variable chord extension, has been developed. Here, the blade chord length in the root area is changed with the help of an elastic skin to adapt it to the respective flight condition. The simulations performed for this concept showed a promising increase in overall helicopter performance. The fabrication of the resulting demonstra- tor as well as the tests in the whirl-tower and wind tunnel will be presented in this paper. The results of the tests show that the concept of linear variable chord extension has a positive influence and a great potential for hovering flight.

Item URL in elib:https://elib.dlr.de/148373/
Document Type:Article
Title:Manufacturing and testing of a variable chord extension for helicopter rotor blades
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Balzarek, ChristophUNSPECIFIEDhttps://orcid.org/0000-0003-4889-0340UNSPECIFIED
Kalow, SteffenUNSPECIFIEDhttps://orcid.org/0000-0002-5308-1209UNSPECIFIED
Riemenschneider, JohannesUNSPECIFIEDhttps://orcid.org/0000-0001-5485-8326UNSPECIFIED
Rivero, AndresUniversity of BristolUNSPECIFIEDUNSPECIFIED
Journal or Publication Title:Actuators
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In ISI Web of Science:Yes
Publisher:Multidisciplinary Digital Publishing Institute (MDPI)
Keywords:morphing, rotor, helicopter, trailing edge, chordextension, SABRE
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Components and Systems
DLR - Research area:Aeronautics
DLR - Program:L CS - Components and Systems
DLR - Research theme (Project):L - Structural Materials and Design
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Adaptronics
Deposited By: Stanitzek, Silke
Deposited On:31 Jan 2022 18:05
Last Modified:19 Oct 2023 14:20

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