Mr. David Perkins Profile

David Perkins

at Cornerstone Research Group Inc

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Proceedings Article | 29 July 2004 Paper

Adaptive wing structures

David Perkins, John Reed, Ernie Havens

Proceedings Volume 5388, (2004) https://doi.org/10.1117/12.541650

KEYWORDS: Composites, Smart materials, Prototyping, Smart structures, Materials processing, Foam, Shape memory polymers, Process engineering, Standards development, Skin

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Cornerstone Research Group, Inc. (CRG), with specific no-cost guidance and support from Lockheed Martin, proposed to significantly increase the capability of loitering Unmanned Air Vehicles (UAVs) by developing a unique adaptive wing structure. This technology will offer significant operational benefit to air vehicles of this type currently under development. The development of this adaptive wing structure will enable such aircraft to adapt their wing configuration to maximize efficiency in each flight regime experienced during their mission. Additionally, the benefits of this development program will enhance the agility and maneuverability of the vehicle; therefore increasing its mission capability. The specific morphing ability CRG proposed to develop was a controlled expansion and contraction of the wing chord, which increases the wing planform area and therefore the lift produced. CRG proved feasibility of this concept and developed a sub-scale prototype integrating smart materials developed at CRG.

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