Results 21 to 30 of about 3,315 (185)

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

Towards Bio-Inspiration, Development, and Manufacturing of a Flapping-Wing Micro Air Vehicle

open access: yesDrones, 2020
Throughout the last decade, there has been an increased demand for intricate flapping-wing drones with different capabilities than larger drones. The design of flapping-wing drones is focused on endurance and stability, as these are two of the main ...
P. Lane   +5 more
doaj   +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

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

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

Soft Actuators Integrated with Control and Power Units: Approaching Wireless Autonomous Soft Robots

open access: yesAdvanced Robotics Research, EarlyView.
Soft robots exhibit significant development potential in various applications. However, there are still key technical challenges regarding material improvement, structure design and components integration. This review focuses on the development and challenge of soft actuators, power components, and control components in untethered intelligent soft ...
Renwu Shi, Feifei Pan, Xiaobin Ji
wiley   +1 more source

Multimodal Locomotion in Insect‐Inspired Microrobots: A Review of Strategies for Aerial, Surface, Aquatic, and Interfacial Motion

open access: yesAdvanced Robotics Research, EarlyView.
This review identifies key design considerations for insect‐inspired microrobots capable of multimodal locomotion. To draw inspiration, biological and robotic strategies for moving in air, on water surfaces, and underwater are examined, along with approaches for crossing the air–water interface.
Mija Jovchevska   +2 more
wiley   +1 more source

Fluid-structure interaction enhances the aerodynamic performance of flapping wings: a computational study

open access: yesJournal of Biomechanical Science and Engineering, 2018
Insect wings change its shape passively by the aerodynamic and inertial forces when flapping, which can greatly affect its aerodynamic performances. In order to confirm the importance of the fluid-structure interaction in flapping wing aerodynamics, we ...
Toshiyuki NAKATA, Ryusuke NODA, Hao LIU
doaj   +1 more source

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

open access: yesAerospace, 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   +4 more
doaj   +1 more source

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