Results 51 to 60 of about 522,105 (314)

Reduced-order modeling of unsteady aerodynamics of a flapping wing based on the Volterra theory

Results in Physics, 2017
Flapping flight mechanisms offers a power-efficient and highly manoeuvrable basis for the development of micro air vehicles. The aerodynamic knowledge and prediction tools of the flapping wing are quite important for the design of micro air vehicles.
Kai Liu, Daochun Li, Jinwu Xiang
doaj   +1 more source

Development of a Dragonfly-Inspired High Aerodynamic Force Flapping-Wing Mechanism Using Asymmetric Wing Flapping Motion. [PDF]

Biomimetics (Basel)
Bionic micro air vehicles are currently being popularized for military as well as civilian use and dragonflies display a wealth of skill in their remarkable flight capabilities.
Liang J, Zheng M, Pan T, Su G, Deng Y, Cao M, Li Q.   +6 more
europepmc   +2 more sources

Robotic Avian Wing Explains Aerodynamic Advantages of Wing Folding and Stroke Tilting in Flapping Flight

Advanced Intelligent Systems, 2022
Avian flapping strategies have the potential to revolutionize future drones as they may considerably improve agility, increase slow speed flight capability, and extend the aerodynamic performance. The study of live birds is time‐consuming, laborious, and,
Enrico Ajanic, Adrien Paolini, Charles Coster, D. Floreano, Christoffer Johansson   +4 more
semanticscholar   +1 more source

Wing-strain-based flight control of flapping-wing drones through reinforcement learning

Nature Machine Intelligence
Although drone technology has advanced rapidly, replicating the dynamic control and wind-sensing abilities of biological flight is still beyond reach.
Taewi Kim, Insic Hong, Su-Hwan Im, Seungeun Rho, Minho Kim, Yeonwook Roh, Changhwan Kim, Jieun Park, Daseul Lim, Doohoe Lee, Seunggon Lee, Jingoo Lee, Inryeol Back, Junggwang Cho, M. Hong, S. Kang, Joonho Lee, Sungchul Seo, Uikyum Kim, Young-Man Choi, Je-sung Koh, Seungyong Han, Daeshik Kang   +22 more
semanticscholar   +1 more source

Research on the Flight Performance of Biomimetic Moth Based on Flapping Function Control

Applied Sciences
Flapping flight is an important mode of insect flight, and its unique flapping motion pattern enables it to fly efficiently in complex environments. This paper takes a biomimetic moth flapping-wing aircraft as the research object and proposes a periodic ...
Yaxin Liu, Wenda Wang, Ruiqing Han, Qili Sun, Ming Zhong   +4 more
doaj   +1 more source

Kinematic Optimization of a Flexible Wing Undergoing Flapping and Pitching

Shock and Vibration, 2021
In recent years, there has been widespread interest in the design of microair vehicles (MAVs) for flapping flight with high-aspect ratio wings due to their high efficiency and energy savings.
Yue Wu, Changchuan Xie, Yang Meng, Chao Yang   +3 more
doaj   +1 more source

Structural Analysis of a Dragonfly Wing

, 2010
Dragonfly wings are highly corrugated, which increases the stiffness and strength of the wing significantly, and results in a lightweight structure with good aerodynamic performance.
Jongerius, S.R., S. R. Jongerius, D. Lentink, Lentink, D.   +3 more
core   +1 more source

Analytical Study on Lift Performance of a Bat-Inspired Foldable Flapping Wing: Effect of Wing Arrangement

Aerospace, 2022
In this work, we use a three-dimensional computational fluid dynamics (CFD) simulation to comprehend how the two wing arrangement variables, i.e., inner/outer wing proportion and mid-stroke dihedral, affect the lift characteristic of a bat-inspired span ...
Dawei Bie, Daochun Li, Huadong Li, Zi Kan, Zhan Tu   +4 more
doaj   +1 more source

Nonlocomotory Robotic Strategies for Dynamic Rotation Control in Terrestrial Robots: A Review

Advanced Robotics Research, EarlyView.
Terrestrial robots increasingly require rapid body rotation to maintain stability and agility in complex environments. This review shows nonlocomotory rotational control strategies that operate without ground contact, including reaction wheels, tails, bars, limbs, and thrusters.
Y. Liang, J. An, X. Zheng, D. Wang, S. Wang, X. Wang, P. Zhu, J. Pei, S. Li, J. Paripurana, Y. Han, Z. Tang, X. Gan, Q. He, X. Ma   +14 more
wiley   +1 more source

Analysis and Experiment of an Ultra-light Flapping Wing Aircraft [PDF]

, 2013
II Inspired by flying animals in nature especially birds, human has designed and attempted to achieve man-powered flapping wing aircraft in very early aviation history.
Hu, Xiaowei
core