Multi-Fidelity Design of an Aeroelastically Tailored Composite Wing for Dynamic Wind-Tunnel Testing

Aeroelastic tailoring offers an effective way to exploit the anisotropic properties of the composite materials used in lightweight aerospace structures. This paper presents a design methodology for experimental wings that employ a typical wingbox structure. The proposed methodology combines three different analysis tools: Proteus, a low-fidelity aeroelastic framework with tailoring capabilities, OptiBLESS, an open-source toolbox for optimization of blended stacking sequences and MSC Nastran, a commercial software commonly used in industry for aeroelastic analyses. An experimental wing is designed using the proposed framework. The developed design is manufactured using carbon fibre pre-preg and hand layup technique. Finally, the manufactured wing is tested in the wind-tunnel at speeds up to 25 m/s. Both static and dynamic tests are performed, where for the latter a gust generator is used. The experimental results provide a source of comparison for the numerical models used in the proposed design methodology.

[1]  Krister Svanberg,et al.  A Class of Globally Convergent Optimization Methods Based on Conservative Convex Separable Approximations , 2002, SIAM J. Optim..

[2]  John Dugundji,et al.  Experimental aeroelastic behavior of forward-swept graphite/epoxy wings with rigid-body freedom , 1987 .

[3]  Mostafa M. Abdalla,et al.  Cross-sectional modelling of thin-walled composite beams , 2014 .

[4]  Roeland De Breuker,et al.  Design and Testing of Aeroelastically Tailored Wings Under Maneuver Loading , 2017 .

[5]  J. Dugundji,et al.  Aeroelastic flutter and divergence of stiffness coupled, graphite/epoxy cantilevered plates , 1984 .

[6]  Roeland De Breuker,et al.  Optimization, Manufacturing and Testing of a Composite Wing with Maximized Tip Deflection , 2016 .

[7]  Djamel Rezgui,et al.  Testing of a Hinged Wingtip Device for Gust Loads Alleviation , 2018, Journal of Aircraft.

[8]  T. A. Weisshaar,et al.  Swept composite wing aeroelastic divergence experiments , 1982 .

[9]  J. Dugundji,et al.  Experimental aeroelastic behavior of unswept and forward-swept cantilever graphite/epoxy wings , 1985 .

[10]  Chao Yang,et al.  Gust load alleviation wind tunnel tests of a large-aspect-ratio flexible wing with piezoelectric control , 2017 .

[11]  Paul M. Weaver,et al.  Framework for the Buckling Optimization of Variable-Angle Tow Composite Plates , 2015 .

[12]  Zafer Gürdal,et al.  Design of variable stiffness panels for maximum strength using lamination parameters , 2011 .

[13]  J. Dillinger Static Aeroelastic Optimization of Composite Wings with Variable Stiffness Laminates , 2014 .

[14]  Zafer Gürdal,et al.  Stiffness Optimization of Composite Wings with Aeroelastic Constraints , 2013 .

[15]  Noud Werter,et al.  A novel dynamic aeroelastic framework for aeroelastic tailoring and structural optimisation , 2016 .

[16]  Earl H. Dowell,et al.  Gust Response for Flexibly Suspended High-Aspect Ratio Wings , 2010 .

[17]  D. Rajpal,et al.  Aeroelastic optimization of composite wings including fatigue loading requirements , 2019, Composite Structures.

[18]  M. Drela XFOIL: An Analysis and Design System for Low Reynolds Number Airfoils , 1989 .

[19]  Noud Werter,et al.  Design and testing of a low subsonic wind tunnel gust generator , 2015 .

[20]  L. E. M. Lignarolo,et al.  On the Turbulent Mixing in Horizontal Axis Wind Turbine Wakes , 2016 .

[21]  Martin P. Bendsøe,et al.  Parametrization in Laminate Design for Optimal Compliance , 1997 .

[22]  Roeland De Breuker,et al.  Aeroelastic Design of Blended Composite Structures Using Lamination Parameters , 2017 .

[23]  R. De Breuker,et al.  Preliminary aeroelastic design of composite wings subjected to critical gust loads , 2019, Aerospace Science and Technology.

[24]  Earl H. Dowell,et al.  Experimental and Theoretical Study of Gust Response for High-Aspect-Ratio Wing , 2002 .

[25]  Paul M. Weaver,et al.  On Further Developments of Feasible Region of Lamination Parameters for Symmetric Composite Laminates , 2014 .

[26]  T. J. Hertz,et al.  Wind Tunnel Demonstration of Aeroelastic Tailoring Applied to Forward Swept Wings , 1981 .

[27]  Yi Liu,et al.  Gust response analysis and wind tunnel test for a high-aspect ratio wing , 2016 .