Following several studies in the field of Active or Smart materials and Structure (SMS) (material characterization, simulation of performances), Dassault Aviation has proposed, in the frame of a European project, to evaluate the capabilities of Smart Materials and Structures applied to an adaptive divergent trailing edge of a High Altitude Unmanned Air Vehicle. A demonstrator of this adaptive trailing edge has been designed and manufactured. An original actuation concept has been developed based on a mixed system made of push-pull SMA (Shape Memory Alloy) wires connected to mechanical links that actuate the trailing edge. Functional tests were performed on the demonstrator in the Argenteuil Dassault Aviation laboratory, including characterization at low temperature. From this experimental campaign and from the subsequent analysis, the initial specifications have been fulfilled in term of force, deflection, actuation time, energy consumption and temperature range. This shows that the design is adequate and could be applied to an existing air vehicle. Nevertheless, some improvement would be useful on the SMA behaviour understanding and on their procurement.
Shape Memory Alloys Application: Trailing Edge Shape Control
2006
17 pages
Report
Keine Angabe
Englisch
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