Results 191 to 200 of about 139,402 (244)

Bounding Flight Control of Dynamic Morphing Wings

IEEE International Conference on Advanced Intelligent Mechatronics
Vertebrate flyers perform intermittent flights as bounding or oscillating flights for power management. Intermittent flights and the resulting oscillating height during flapping and soaring provide the means of increasing speed without increasing ...
Bibek Gupta, Aniket Dhole, Adarsh Salagame, Xuejian Niu, Yizhe Xu, Kaushik Venkatesh Krishnamurthy, Paul Ghanem, Ioannis Mandralis, Eric Sihite, Alireza Ramezani   +9 more
semanticscholar   +1 more source

Morphing wings review: aims, challenges, and current open issues of a technology

Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2020
The scope of this work is to provide a critical review on the expectations about the morphing wing technology against the current open issues and showstoppers.
S. Ameduri, A. Concilio
semanticscholar   +1 more source

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
openaire   +1 more source

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
openaire   +1 more source

Propulsion prediction of morphing flapping wings using reduced order model from deep-learning

The Physics of Fluids
Morphing the wing shape properly could improve the flapping performance of micro air vehicles (MAVs) incredibly. To design the proper morphing wings, the unsteady flapping performance needs to be estimated and predicted accurately.
Tian-Tsai Lin, Wei Xia, Liang Ji, Ximao Zhong, Xin Zhang, Tong Guo, Kun Wang, Shuling Hu   +7 more
semanticscholar   +1 more source

Bird-inspired robot with morphing feathered wings for multi-modal locomotion

Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering
Birds have long fascinated scientists and engineers with their unrivaled agility and maneuverability, achieved through dynamic wing conformations. However, due to the challenges in robot modeling, design, and control, the existing robotic models often ...
Jing-Hu Li, Ganaba Harouna, Junhao Qiu, Zhenya Wang, Jingshan Zhao   +4 more
semanticscholar   +1 more source

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).
openaire   +1 more source

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
openaire   +1 more source

Development and evaluation of a light-weight flexure-based lockable joint for morphing wings

Aerospace Science and Technology, 2023
Xiong Zhang, Xi Kang, Bing Li
semanticscholar   +1 more source

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
openaire   +1 more source