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The belt-rib concept: a structronic approach to variable camber.

Campanile, L. F. und Sachau, D. (2000) The belt-rib concept: a structronic approach to variable camber. Journal of Intelligent Material Systems and Structures, 11 (3), Seiten 215-224. Sage Publications. ISSN 1045 - 389X.

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Kurzfassung

The belt-rib concept for lifting surfaces with variable camber evolved at DLR recently as one of the most promising solutions for the adaptive wing. With the belt-rib idea the adaptive wing issue is approached in a new way: instead of a "mechatronic" solution with hinges or linear bearings a "structronic" solution is chosen, where distributed flexibility allows the desired shape changes. The resulting system is not only easier to maintain due to the absence of wear, but also is structurally more reliable and substantially lighter. The new concept evolves from the classical wing structure. The classical rib, which i s in charge of the wing section's stiffness, is replaced by a "belt rib," which allows camber changes within given limits while leaving the remaining in-plane stiffness properties of the section widely unchanged. The evolution of the belt-rib concept was accompanied by experimental tests on different prototypes. After a first development stage, in which mainly the system's shape adaptability and the overall stiffness properties were investigated, further steps followed, focused on manufacturing, weight optimization and strength aspects. Recent developments dealt with the construction of a model with solid-state hinges, realized as hybrid glass fiber-carbon-fiber reinforced composite s tructure. The model is actuated mechanically by cables, which can be replaced by multifunctional actuators-like shape memory wires-in the future. The paper opens with an introduction about shape control of aerospace structures and variable camber in particular, in which the major advantages of a "structronic" approach with respect to classical solutions are discussed. Then the fundamentals of the belt-rib concept are sketched, with some significant results of the feasibility proof phase, followed by the description of the last developments. The conclusion summarizes the potential of a structronic approach to shape control with an outline of possible future work.

Dokumentart:Zeitschriftenbeitrag
Zusätzliche Informationen: LIDO-Berichtsjahr=2005,
Titel:The belt-rib concept: a structronic approach to variable camber.
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Campanile, L. F.NICHT SPEZIFIZIERT
Sachau, D.NICHT SPEZIFIZIERT
Datum:2000
Erschienen in:Journal of Intelligent Material Systems and Structures
Referierte Publikation:Ja
In ISI Web of Science:Ja
Band:11
Seitenbereich:Seiten 215-224
Verlag:Sage Publications
ISSN:1045 - 389X
Status:veröffentlicht
Stichwörter:belt-rib concept
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Luftfahrt
HGF - Programmthema:keine Zuordnung
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L ST - Starrflüglertechnologien
DLR - Teilgebiet (Projekt, Vorhaben):L -- keine Zuordnung
Standort: Braunschweig
Institute & Einrichtungen:Institut für Faserverbundleichtbau und Adaptronik
Hinterlegt von: Sibylle Wolff
Hinterlegt am:10 Feb 2007
Letzte Änderung:27 Apr 2009 04:42

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