Design of Shape Memory Alloy Actuators for Morphing Laminar Wing With Flexible Extrados

被引：37

作者：

Georges, Thomas ^{[1
]}

Brailovski, Vladimir ^{[1
]}

Morellon, Emeric ^{[1
]}

Coutu, Daniel ^{[1
]}

Terriault, Patrick ^{[1
]}

机构：

[1] ETS, Dept Mech Engn, Montreal, PQ H3C 1K3, Canada

来源：

JOURNAL OF MECHANICAL DESIGN | 2009年 / 131卷 / 09期

关键词：

actuators; aerodynamics; aerospace components; aerospace control; design engineering; flexible structures; laminar flow; laminates; shape memory effects; subsonic flow; AIRFOILS;

D O I：

10.1115/1.3160310

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

An active structure of a morphing wing designed for subsonic cruise flight conditions is composed of three principal subsystems: (1) flexible extrados, (2) rigid intrados, and (3) an actuator group located inside the wing box. The four-ply laminated composite flexible extrados is powered by two individually controlled shape memory alloy (SMA) actuators. Fulfilling the requirements imposed by the morphing wing application to the force-displacement characteristics of the actuators, a novel design methodology to determine the geometry of the SMA active elements and their adequate assembly conditions is presented. This methodology uses the results of the constrained recovery testing of the selected SMA. Using a prototype of the morphing laminar wing powered by SMA actuators, the design approach proposed in this study is experimentally validated.

引用

页码：0910061 / 0910069

页数：9

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