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Chapter: Hyperelastic Research Lightweight Flexible Aircraft, new invention technology, Research project papers,

Active Control of Tailored Laminates

Active Control of Tailored Laminates
Hyperelastic Research/Lightweight Flexible Aircraft, Advancing technology and science through flight 2014, Research, Technology, and Engineering Accomplishments, National Aeronautics and Space Administration NASA, Neil A. Armstrong Flight Research Center. new invention technology, Research project paper;

Active Control of Tailored Laminates


Part of a proposed suite of technologies to enable a fully morphing seamless wing, this effort focuses on tailoring composite materials to enhance structural response and generate out-of-plane deflections using in-plane forces. Composite structures employ embedded fibers in different directions to increase strength. This research seeks to investigate the use of tailored composites in these types of applications.


Work to date: An analytical feasibility study completed in 2013 determined that in-plane loading can generate significant out-of-plane displacement, effectively yielding wing twist. Also determined was the degree of structural interaction of stiffeners and how to mitigate the suppression of structural response.



Looking ahead: Future work will concentrate on enabling continuous outer mold line structures that can change shape. This revolutionary new approach for aircraft design will improve performance and fuel efficiency in numerous ways, as seamless wings would reduce drag and streamline and simplify an airplane's maneuverability.




 Economical: Increases fuel efficiency by reducing drag


 Robust: Features a simpler wing design without control surfaces that is easy to maintain and less likely to need repair




 Commercial aircraft


 General aviation aircraft  Military transport aircraft


Hyperelastic Research/Lightweight Flexible Aircraft


Armstrong engineers are pioneering new research in aircraft design and modeling. Researchers are experimenting with revolutionary hyperelastic wing control technologies that can reduce weight, improve aircraft aerodynamic efficiency, and suppress flutter. Other cutting-edge research involves techniques, models, and analysis tools for flutter suppression and gust-load allevia-tion.Flight projects at Armstrong rely on high-performance aircraft that can support research on lightweight structures and advance control technologies for future efficient, environmentally friendly transport aircraft. This work has applicability beyond flight safety and design optimization.Armstrong's R&D capabilities in this area also can be applied to other vehicles, such as supersonic transports, large space structures, and hypersonic vehicles.

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