Development of Variable Camber Morphing Airfoil Using Corrugated Structure

This paper describes the development and the wind tunnel test of a variable geometry morphing airfoil using corrugated structures. Proof-of-concept study of a morphing wing with corrugated flexible seamless flap-like structure is verified by finite element analysis, and a prototype is manufactured using carbon fiber reinforced plastics. For the actuation system, two servomotors are installed inside the prototype wing to control the airfoil shape by the chordwise tension of the connected wires. Successful actuation of the prototype wing is demonstrated under the air speed up to 30  m/s in the wind tunnel test. Basic aerodynamic properties are also evaluated in comparison to traditional airfoil with a hinged control surface. Lift increase of variable corrugated wing is recognized compared to the traditional wing when the aileron angle increases.

[1]  William H. Rae,et al.  Low-Speed Wind Tunnel Testing , 1966 .

[2]  Bangfeng Wang,et al.  Deformation characteristics of corrugated composites for morphing wings , 2010 .

[3]  Tomohiro Yokozeki,et al.  Mechanical properties of corrugated composites for candidate materials of flexible wing structures , 2006 .

[4]  Jonathan D. Bartley-Cho,et al.  Development of high-rate large-deflection hingeless trailing-edge control surface for the Smart Wing wind tunnel model , 2001, SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring.

[5]  D. M. Elzey,et al.  A shape memory-based multifunctional structural actuator panel , 2005 .

[6]  Anna-Maria Rivas McGowan,et al.  Recent results from NASA's morphing project , 2002, SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring.

[7]  Shaker A. Meguid,et al.  Shape morphing of aircraft wing: Status and challenges , 2010 .

[8]  Anna-Maria Rivas McGowan,et al.  The Aircraft Morphing Program , 1998 .

[9]  Mary Frecker,et al.  Aircraft Structural Morphing Using Tendon Actuated Compliant Cellular Trusses , 2004 .

[10]  L. F. Campanile,et al.  The Belt-Rib Concept: A Structronic Approach to Variable Camber , 2000 .

[11]  Michael Grünewald,et al.  Multi-Functional Morphing Trailing Edge for Control of All-Composite, All-Electric Flying Wing Aircraft , 2008 .

[12]  John Flanagan,et al.  Development and Flight Testing of a Morphing Aircraft, the NextGen MFX-1 , 2007 .

[13]  Brian Sanders,et al.  Aerodynamic and Aeroelastic Characteristics of Wings with Conformal Control Surfaces for Morphing Aircraft , 2003 .

[14]  Paul M. Weaver,et al.  Concepts for morphing airfoil sections using bi-stable laminated composite structures , 2008 .

[15]  Sridhar Kota,et al.  Flight testing of Mission Adaptive Compliant Wing , 2007 .

[16]  Kevin D Potter,et al.  Composite corrugated structures for morphing wing skin applications , 2010 .

[17]  Daniel J. Inman,et al.  A Review of Morphing Aircraft , 2011 .

[18]  Daniel J. Inman,et al.  A novel unmanned aircraft with solid-state control surfaces: Analysis and flight demonstration , 2013 .

[19]  Gerald Kress,et al.  Corrugated laminate homogenization model , 2010 .

[20]  M. Ruzzene,et al.  Composite chiral structures for morphing airfoils: Numerical analyses and development of a manufacturing process , 2010 .

[21]  Terrence A. Weisshaar,et al.  Morphing Aircraft Systems: Historical Perspectives and Future Challenges , 2013 .