Shape Adaptive Airfoil Actuated by a Shape Memory Alloy and its Aerodynamic Characteristics

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The methodology to adaptively change the configuration of an airfoil using a shape memory alloy (SMA) thin film actuator to improve aerodynamic performance is numerically demonstrated. To predict the thermomechanical behaviors of an SMA thin film, a 2-D incremental formulation of the SMA constitutive model is developed. By implementing a numerical algorithm of the SMA thin film, the interactions between the airfoil structure and SMA thin film actuator are investigated. Airfoils with either a plain flap or a slotted flap are considered and their aerodynamic characteristics are compared with those of the airfoil actuated using the SMA thin film actuator. Furthermore, the effectiveness of the airfoil actuated by SMA thin film to enhance the aerodynamic performance is discussed.
Publisher
TAYLOR FRANCIS INC
Issue Date
2009
Language
English
Article Type
Article
Keywords

ALGORITHMS; MODEL

Citation

MECHANICS OF ADVANCED MATERIALS AND STRUCTURES, v.16, no.3, pp.260 - 274

ISSN
1537-6494
URI
http://hdl.handle.net/10203/99487
Appears in Collection
AE-Journal Papers(저널논문)
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