Macro-Fiber Composite actuated simply supported thin airfoils

被引：65

作者：

Bilgen, Onur ^{[1
]}

Kochersberger, Kevin B. ^{[1
]}

Inman, Daniel J. ^{[1
]}

Ohanian, Osgar J., III ^{[2
]}

机构：

[1] Virginia Tech, Ctr Intelligent Mat Syst & Struct, Blacksburg, VA 24061 USA

[2] AVID LLC, Blacksburg, VA 24060 USA

来源：

SMART MATERIALS AND STRUCTURES | 2010年 / 19卷 / 05期

关键词：

FLIGHT CONTROL;

D O I：

10.1088/0964-1726/19/5/055010

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A piezoceramic composite actuator known as Macro-Fiber Composite (MFC) is used for actuation in the design of a variable camber airfoil intended for a ducted fan aircraft. The study focuses on response characterization under aerodynamic loads for circular arc airfoils with variable pinned boundary conditions. A parametric study of fluid-structure interaction is employed to find pin locations along the chordwise direction that result in high lift generation. Wind tunnel experiments are conducted on a 1.0% thick, 127 mm chord MFC actuated bimorph airfoil that is simply supported at 5% and 50% of the chord. Aerodynamic and structural performance results are presented for a flow rate of 15 m s(-1) and a Reynolds number of 127 000. Non-linear effects due to aerodynamic and piezoceramic hysteresis are identified and discussed. A lift coefficient change of 1.46 is observed, purely due to voltage actuation. A maximum 2D L/D ratio of 17.8 is recorded through voltage excitation.

引用

页数：11

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