Results 191 to 200 of about 1,685 (231)

Pneumatic Morphing Aspect Ratio Wing

45th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics & Materials Conference, 2004
This paper discusses the design, development and testing of a pneumatic telescopic wing that permits a change in the aspect ratio while simultaneously supporting structural wing loads. The key element of the wing consists of a pressurized telescopic spar that can undergo large-scale span wise changes while supporting wing loadings in excess of 15 lbs ...
Julie Blondeau, Darryll Pines
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Flight dynamic modeling and control for a telescopic wing morphing aircraft via asymmetric wing morphing

Aerospace Science and Technology, 2017
Abstract In this paper, a sliding mode flight controller is formulated in order to enhance the lateral maneuverability for a tailless telescopic wing morphing aircraft by using additional asymmetric wing telescoping. Based on the nonlinear time-varying equations of motion and the approximate aerodynamic model obtained by wind tunnel tests, a ...
Ting Yue, Xiangyang Zhang, Lixin Wang, Junqiang Ai   +3 more
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Shape-morphing microbots take wing

C&EN Global Enterprise, 2019
Researchers have made tiny shape-shifting machines that morph into different forms one after another in response to magnetic fields (Nature 2019, DOI: 10.1038/s41586-019-1713-2).
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Analysis of bat wings for morphing

SPIE Proceedings, 2008
The morphing of wings from three different bat species is studied using an extension of the Weissinger method. To understand how camber affects performance factors such as lift and lift to drag ratio, XFOIL is used to study thin (3% thickness to chord ratio) airfoils at a low Reynolds number of 100,000.
Emily A. Leylek, Justin E. Manzo, Ephrahim Garcia   +2 more
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Aerodynamic Efficiency Analysis of Morphing Wings Relative to Non-Morphing Wings

AIAA Scitech 2020 Forum, 2020
Zachary S. Montgomery, Douglas F. Hunsaker, James J. Joo   +2 more
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Variable Geometry Wing-box: Towards a Robotic Morphing Wing

2014
The ability to vary the geometry of a wing to adapt to different flight conditions can significantly improve the performance of an aircraft. However, the realization of any morphing concept will typically be accompanied by major challenges. Specifically, the geometrical constraints that are imposed by the shape of the wing and the magnitude of the air ...
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Morphing Aircraft Wing: Development and Application

International Journal of All Research Education and Scientific Methods
Morphing aircraft wings represent a transformative advancement in aerospace engineering, offering the ability to dynamically alter wing geometry in real time based on varying flight conditions. This capability enables substantial performance improvements across a wide range of flight regimes, including enhanced lift-to-drag ratios, increased ...
Sudhanshu Srivastava, Nayan J. Patel, Mehul Padhiyar, Ravi Bhardwaj   +3 more
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Birds can transition between stable and unstable states via wing morphing

Nature, 2022
Christina Harvey, Vikram B Baliga, Douglas L Altshuler   +2 more
exaly  

Hierarchical Honeycomb-Structured Electret/Triboelectric Nanogenerator for Biomechanical and Morphing Wing Energy Harvesting

Nano-Micro Letters, 2021
Kai Tao, Haiping Yi, Qiang Shen
exaly  

A wireless radiofrequency-powered insect-scale flapping-wing aerial vehicle

Nature Electronics, 2021
Takashi Ozaki, Tomohiko Jimbo, Kanae Hamaguchi   +2 more
exaly