Results 21 to 30 of about 528 (167)

Design and analysis of driving mechanism of flapping-wing aircraft based on space crank-swing rod mechanism

open access: yes上海师范大学学报. 自然科学版, 2022
In order to improve the flight performance of the flapping-wing aircraft,a novel multi-degree of freedom flapping-wing mechanism based on the space pendulum mechanism was designed by referring to the flight motion characteristics of living things.
FANG Yue, YANG Ye
doaj   +1 more source

Development of a novel flapping wing micro aerial vehicle with elliptical wingtip trajectory [PDF]

open access: yesMechanical Sciences, 2019
This paper describes a novel flapping wing micro air vehicle (FWMAV),which can achieve two active degree of freedom (DOF) movements of flapping and swing, as well as twisting passively.
Q. Liu   +6 more
doaj   +1 more source

Effects of airfoil on aerodynamic performance of flapping wing

open access: yesBiomimetic Intelligence and Robotics, 2021
Flapping-wing aircraft (FWA) operates in a flight mode that mimics natural flyers, such as birds, bats and insects. For large scale bird-inspired flapping wings aircraft, the design of airfoil parameters is crucial to improving the aerodynamic ...
Min Zhao, Yao Zou, Qiang Fu, Wei He
doaj   +1 more source

Dynamic Analysis of the Flapping Mechanism of Flapping Wing Aircraft

open access: yesIOP Conference Series: Materials Science and Engineering, 2019
Abstract In order to improve the design level of bionic flapping-wing aircraft, it is necessary to find out the influence of load undulating moment on the motor under the action of air undulating moment. This paper takes flapping-wing aircraft with a crank and rocker mechanism as a flapping mechanism as an example.
Wei He   +4 more
openaire   +1 more source

Design and Coupling Dynamics Research of a Single-drive Multi-mode Flapping-wing Aircraft

open access: yesJixie chuandong, 2023
Aiming at the problems of single flapping wing movement mode and low flight flexibility and stability of flapping-wing aircraft, a single-drive multi-mode flapping-wing aircraft based on the space linkage mechanism is designed. The kinematic model of the
Jiang Houqing, Hou Yu, Guo Yongxing
doaj  

Design of Variable Amplitude Flapping Wing Aircraft and Realization of Multiple Flight Modes

open access: yesJixie chuandong, 2021
Aiming at the problems of the single flight mode and inflexible flight attitude,a variable amplitude flapping wing aircraft is designed. By adjusting the flapping amplitude, the flapping wing motion attitude and flight mode can be switched.
Yueyang Hou   +4 more
doaj  

Investigation of the Influence of Different Flapping Wing Motion Characteristics on Aerodynamic Parameters under Incoming Flow [PDF]

open access: yesJournal of Applied Fluid Mechanics
There is high flight efficiency of flapping wing aircraft, and its hovering ability, wind loading rating, maneuverability and concealment are better than that of multi-rotor and fixed-wing aircraft. In this paper, the bionic flapping wing is taken as the
Z. Guo   +4 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

A wind tunnel investigation of the unsteady aerodynamic characteristics of bionic flapping wings with three-dimensional complex motion

open access: yesAIP Advances, 2023
The bionic flapping wing aircraft realizes flight by imitating the structure and flapping mode of birds. In this paper, a three-dimensional composite motion aerodynamic analysis model of a bionic flapping wing is established.
Lun Li, Wencheng Wang, Xiaojin Wu
doaj   +1 more source

Design and Analysis of Rotor/Wing Flap for Canard Rotor/Wing Aircraft

open access: yesJournal of Physics: Conference Series, 2019
Abstract In the present study, a kind of blunt trailing edge airfoil with its flap is designed for the purpose of reducing drags of blunt leading and trailing edge airfoils which are used for rotor/wing of CRW. The aerodynamic characteristics of designed flaps and elliptic airfoil which has the same thickness are numerically investigated
Yangping Deng, Baigang Mi
openaire   +1 more source

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