elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Impressum | Kontakt | English
Schriftgröße: [-] Text [+]

Material characterization for morphing purposes in order to match flight requirements

Geier, Sebastian und Kintscher, Markus und Heintze, Olaf und Wierach, Peter und Monner, Hans Peter und Wiedemann, Martin (2012) Material characterization for morphing purposes in order to match flight requirements. SPIE Smart Structures/NDE, 12. - 15. März 2012, San Diego, USA.

Dieses Archiv kann nicht den gesamten Text zur Verfügung stellen.

Kurzfassung

Natural laminar flow is one of the challenging aims of the current aerospace research. Main reasons for the aerodynamic transition from laminar into turbulent flow focusing on the airfoil-structure is the aerodynamic shape and the surface roughness. The Institute of Composite Structures and Adaptive Systems at the German Aerospace Center in Braunschweig works on the optimization of the aerodynamic-loaded structure of future aircrafts in order to increase their efficiency. Providing wing structures suited for natural laminar flow is a step towards this goal. Regarding natural laminar flow, the structural design of the leading edge of a wing is of special interest. An approach for a gap-less leading edge was developed to provide a gap- and step-less high quality surface suited for natural laminar flow and to reduce slat noise. In a national project the first generation of the 3D full scale demonstrator was successfully tested in 2010. The prototype consists of several new technologies, opening up the issue of matching the long and challenging list of airworthiness requirements simultaneously. Therefore the developed composite structure was intensively tested for further modifications according to meet requirements for abrasion, impact and deicing basically. The former presented structure consists completely of glass-fiber-prepreg (GFRP-prepreg). New functions required the addition of a new material-mix, which has to fit into the manufacturing-chain of the composite structure. In addition the hybrid composites have to withstand high loadings, high bending-induced strains (1%) and environmentally influenced aging. Moreover hot-wet cycling tests are carried out for the basic GFRP-structure in order to simulate the long term behavior of the material under extrem conditions. The presented paper shows results of four-points-bending-tests of the most critical section of the morphing leading edge device. Different composite-hybrids are built up and processed. An experimental based trend towards an optimized material design will be shown.

Dokumentart:Konferenzbeitrag (Vortrag, Paper)
Titel:Material characterization for morphing purposes in order to match flight requirements
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Geier, SebastianNICHT SPEZIFIZIERT
Kintscher, MarkusNICHT SPEZIFIZIERT
Heintze, OlafNICHT SPEZIFIZIERT
Wierach, PeterNICHT SPEZIFIZIERT
Monner, Hans PeterNICHT SPEZIFIZIERT
Wiedemann, MartinNICHT SPEZIFIZIERT
Datum:März 2012
Stichwörter:Smart droop nose, morphing structure, morphing wing leading edge, fully laminar natural flow, fully laminar wing concept
Veranstaltungstitel:SPIE Smart Structures/NDE
Veranstaltungsort:San Diego, USA
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:12. - 15. März 2012
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Luftfahrt
HGF - Programmthema:Starrflügler
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L AR - Starrflüglerforschung
DLR - Teilgebiet (Projekt, Vorhaben):L - Strukturen & Werkstoffe
Standort: Braunschweig
Institute & Einrichtungen:Institut für Faserverbundleichtbau und Adaptronik > Multifunktionswerkstoffe
Hinterlegt von: Isolde Böhringer-Thelen
Hinterlegt am:29 Mär 2012 15:04
Letzte Änderung:14 Dez 2012 09:39

Nur für Mitarbeiter des Archivs: Kontrollseite des Eintrags

Blättern
Suchen
Hilfe & Kontakt
Informationen
electronic library verwendet EPrints 3.3.12
Copyright © 2008-2013 Deutsches Zentrum für Luft- und Raumfahrt (DLR). Alle Rechte vorbehalten.