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Distributed versus concentrated flexibility in shape control of lifting surfaces: The "belt-rib" concept

Campanile, L. F. und Sachau, D. (1999) Distributed versus concentrated flexibility in shape control of lifting surfaces: The "belt-rib" concept. In: Design Engineering Technical Conferences. "1999 ASME Design Engineering Technical Conferences", Las Vegas, USA, September 1999.

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Kurzfassung

The „mechatronic“ way of dealing with the issue of structure geometry control, based on mechanical systems with hinges, bearing and discrete actuators, cannot easily cope with the strict requirements of aircraft design. In this paper a “structronic” concept for airfoils with variable camber is presented, in which the desired geometry changes are achieved through structural flexibility and no moveable parts are needed. A short introduction to the “structronic” approach to structure adaptation in general and to airfoil shape control in particular opens the paper, with some emphasis on the role of solid-state actuators. The description of the new structural concept (the belt-rib concept) follows, with the application to the case of a landing flap with variable camber. Some results of FEM simulations as well as of experimental tests on different prototypes – one of them equipped with shape memory wires as actuators – are also included in the paper. The results provide a first feasibility proof of the new concept and encourage further work.

Dokumentart:Konferenzbeitrag (Paper)
Zusätzliche Informationen: LIDO-Berichtsjahr=1999, monograph_id=DETC/VIB-8388,
Titel:Distributed versus concentrated flexibility in shape control of lifting surfaces: The "belt-rib" concept
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Campanile, L. F.NICHT SPEZIFIZIERT
Sachau, D.NICHT SPEZIFIZIERT
Datum:1999
Erschienen in:Design Engineering Technical Conferences
Status:veröffentlicht
Stichwörter:structronics, shape control, variable camber, smart materials, solid-state actuators
Veranstaltungstitel:"1999 ASME Design Engineering Technical Conferences", Las Vegas, USA, September 1999
Veranstalter :ASME
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Luftfahrt
HGF - Programmthema:keine Zuordnung
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L TG - Querschnittstechnologien
DLR - Teilgebiet (Projekt, Vorhaben):NICHT SPEZIFIZIERT
Standort: Braunschweig
Institute & Einrichtungen:Institut für Faserverbundleichtbau und Adaptronik > Institut für Strukturmechanik
Hinterlegt von: elib DLR-Beauftragter
Hinterlegt am:16 Sep 2005
Letzte Änderung:14 Jan 2010 15:45

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