Results 31 to 40 of about 25,283 (254)

Structural Analysis of a Dragonfly Wing [PDF]

open access: yes, 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., Lentink, D.
core   +2 more sources

Effect of Wing-Wing Interaction on the Propulsive Performance of Two Flapping Wings at Biplane Configuration

open access: yesApplied Bionics and Biomechanics, 2018
The biplane counter-flapping wing is a special type of wing flapping which is inspired from the fish and insect in nature. The propulsive performance is one of the most important considerations for this kind of flapping wing.
Jianyang Zhu, Bin Lei
doaj   +1 more source

Design and experiment of a bionic flapping wing mechanism with flapping–twist–swing motion based on a single rotation

open access: yesAIP Advances, 2020
In the present study, a bionic flapping mechanism of a spatial six-bar configuration was designed to transform a single rotation of a motor into a three degrees of freedom “flapping–twist–swing” cooperative motion of a flapping wing. The kinematics model
Bing Ji   +8 more
doaj   +1 more source

Simulation of incompressible viscous flows around moving objects by a variant of immersed boundary-Lattice Boltzmann method [PDF]

open access: yes, 2009
A variant of immersed boundary-lattice Boltzmann method (IB-LBM) is presented in this paper to simulate incompressible viscous flows around moving objects.
Anderson   +42 more
core   +1 more source

Modeling and emergence of flapping flight of butterfly based on experimental measurements [PDF]

open access: yes, 2012
The objective of this paper is to clarify the principle of stabilization in flapping-of-wing flight of a butterfly, which is a rhythmic and cyclic motion.
Hirai, Norio   +6 more
core   +1 more source

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

open access: yesResults 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

Design and analysis of an innovative flapping wing micro aerial vehicle with a figure eight wingtip trajectory [PDF]

open access: yesMechanical Sciences, 2021
A multi-mode flapping wing micro air vehicle (FWMAV) that uses a figure eight wingtip motion trajectory with wing flapping, rotation, and swing motion is presented in this paper.
S. Jiang   +6 more
doaj   +1 more source

Kinematic Optimization of a Flexible Wing Undergoing Flapping and Pitching

open access: yesShock 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   +3 more
doaj   +1 more source

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

open access: yesApplied 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   +4 more
doaj   +1 more source

Delaunay graph mapping based mesh deformation for simulation of a spanwise rigid and flexible flapping NACA0012 wing using DES with parallel implementation [PDF]

open access: yes, 2011
A flapping NACA0012 wing with spanwise rigid and flexible configurations is simulated using the Delaunay graph mapping based mesh deformation technique. This mesh deformation scheme is quite efficient and gives a good alternate to the spring analogy due ...
Bratt J.B.   +13 more
core   +1 more source

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