Mardanpour, Pezhman and Krüger, Wolf and Haddadpour, H. and Hoffmann, Diethelm (2006) Design and Testing of a Model Wing Section for a Human Powered Aircraft. In: ICAS 2006 - Proceedings. Optimage Ltd., Edinburgh, UK. ICAS 2006 - 25th International Congress of the Aeronautical Sciences, 2006-09-03 - 2006-09-08, Hamburg, Germany (Europe). ISBN 0-9533991-7-6.
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Abstract
Human powered aircraft (HPA) have a number of special design features. They are of a high aspect ratio, have a very low weight and are consequently equipped with very flexible wings. The aeroelastic behaviour of such aircraft is of great interest. At the Institute of Aeroelasticity of the German Aerospace Center (DLR), a 1:3 scale section of a light-weight wing has been built and tested in an open wind tunnel with comparable Reynolds number of model and original HPA. Representative values for geometry and stiffness were derived from an original HPA design. During the experiment, vibration tests of the structure were performed. During the wind tunnel test, static and transient investigations were performed. Finally, using a modified mass distribution, the flutter point was determined numerically and experimentally, and limit cycle oscillations (LCO) could be observed in the experiment. Measurements indicate that the LCO is due to massive flow separation at positive and negative high angles of attack.
Item URL in elib: | https://elib.dlr.de/46895/ | |||||||||||||||
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Document Type: | Conference or Workshop Item (Paper) | |||||||||||||||
Title: | Design and Testing of a Model Wing Section for a Human Powered Aircraft | |||||||||||||||
Authors: |
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Date: | 2006 | |||||||||||||||
Journal or Publication Title: | ICAS 2006 - Proceedings | |||||||||||||||
Open Access: | No | |||||||||||||||
Gold Open Access: | No | |||||||||||||||
In SCOPUS: | No | |||||||||||||||
In ISI Web of Science: | No | |||||||||||||||
Publisher: | Optimage Ltd., Edinburgh, UK | |||||||||||||||
ISBN: | 0-9533991-7-6 | |||||||||||||||
Status: | Published | |||||||||||||||
Keywords: | aeroelasticity, human powered aircraft, light-weight wing, LCO | |||||||||||||||
Event Title: | ICAS 2006 - 25th International Congress of the Aeronautical Sciences | |||||||||||||||
Event Location: | Hamburg, Germany (Europe) | |||||||||||||||
Event Type: | international Conference | |||||||||||||||
Event Dates: | 2006-09-03 - 2006-09-08 | |||||||||||||||
Organizer: | German Society for Aeronautics and Astronautics - Lilienthal-Oberth e.V. | |||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport (old) | |||||||||||||||
HGF - Program: | Aeronautics | |||||||||||||||
HGF - Program Themes: | Aircraft Research (old) | |||||||||||||||
DLR - Research area: | Aeronautics | |||||||||||||||
DLR - Program: | L ST - Starrflüglertechnologien | |||||||||||||||
DLR - Research theme (Project): | L - Flexible Aircraft (old) | |||||||||||||||
Location: | Göttingen | |||||||||||||||
Institutes and Institutions: | Institute of Aeroelasticity | |||||||||||||||
Deposited By: | Erdmann, Daniela | |||||||||||||||
Deposited On: | 20 Apr 2007 | |||||||||||||||
Last Modified: | 27 Apr 2009 13:26 |
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