Aero−structural Optimization of Shape Memory Alloy-based Wing Morphing via a Class/Shape Transformation Approach

2015 ◽  
Author(s):  
Pedro B. Leal ◽  
Darren J. Hartl ◽  
Christopher L. Bertagne
Keyword(s):  
Shape Memory Alloy ◽  
Structural Optimization ◽  
Shape Memory ◽  
Shape Transformation ◽  
Transformation Approach ◽  
Wing Morphing

Aero-structural optimization of shape memory alloy-based wing morphing via a class/shape transformation approach

2017 ◽  
Vol 232 (15) ◽  
pp. 2745-2759 ◽  
Author(s):  
Pedro BC Leal ◽  
Marcelo A Savi ◽  
Darren J Hartl
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
High Performance ◽  
Optimization Problems ◽  
Shape Change ◽  
Shape Transformation ◽  
Baseline Design ◽  
Deformable Structure ◽  
Stall Angle ◽  
Wing Morphing

Because of the continuous variability of the ambient environment, all aircraft would benefit from an in situ optimized wing. This paper proposes a method for preliminary design of feasible morphing wing configurations that provide benefits under disparate flight conditions but are also each structurally attainable via localized active shape change operations. The controlled reconfiguration is accomplished in a novel manner through the use of shape memory alloy embedded skin components. To address this coupled optimization problem, multiple sub-optimizations are required. In this work, the optimized cruise and landing airfoil configurations are determined in addition to the shape memory alloy actuator configuration required to morph between the two. Thus, three chained optimization problems are addressed via a common genetic algorithm. Each analysis-driven optimization considers the effects of both the deformable structure and the aerodynamic loading experienced by the wing. Aerodynamic considerations are addressed via a two-dimensional panel method and each airfoil shape is generated by the so-called class/shape transformation methodology. It is shown that structurally and aerodynamically feasible morphing of a modern high-performance sailplane wing produces a 22% decrease in weight and significantly increases stall angle of attack and lift at the same landing velocity when compared to a baseline design that employs traditional control surfaces.

scholarly journals Wing morphing control with shape memory alloy actuators

2013 ◽  
Vol 24 (7) ◽  
pp. 879-898 ◽  
Author(s):  
Cees Bil ◽  
Kevin Massey ◽  
Ermira J Abdullah
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Wing Morphing

Structure and mobility of martensite variant interfaces in a Cu-Zn-AI shape memory alloy

2003 ◽  
Vol 112 ◽  
pp. 519-522 ◽  
Author(s):  
W. Cai ◽  
J. X. Zhang ◽  
Y. F. Zheng ◽  
L. C. Zhao
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Martensite Variant

Analysis of the effect of Heat Treatments in the manufacturing process of Shape Memory Alloy Springs

2017 ◽  
Author(s):  
Ricardo Alexandre Amar de Aguiar ◽  
Pedro Manuel Calas Lopes Pacheco ◽  
Brenno Tavares Duarte
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Manufacturing Process ◽  
Heat Treatments

Comparative Analysis of a Tuned Mass Damper Using Steel and a Ni-Ti Shape Memory Alloy

2019 ◽  
Author(s):  
Marcelio Ronnie Dantas de Sá ◽  
Armando Wilmans Nunes da Fonseca Júnior ◽  
Yuri Moraes ◽  
Antonio Almeida Silva
Keyword(s):  
Comparative Analysis ◽  
Shape Memory Alloy ◽  
Shape Memory ◽  
Tuned Mass Damper ◽  
Mass Damper
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