Results 41 to 50 of about 25,595 (255)

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

How wing compliance drives the efficiency of self-propelled flapping flyers

, 2010
Wing flexibility governs the flying performance of flapping wing flyers. Here, we use a self-propelled flapping-wing model mounted on a ``merry go round'' to investigate the effect of wing compliance on the propulsive efficiency of the system.
Godoy-Diana, Ramiro, Thiria, Benjamin
core   +1 more source

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

, 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, Chen, Chew, Choi, Dennise, Dimakopoulos, Eldredge, Fadlun, Feng, Feng, Fornberg, Goldstein, Goldstein, Guo, Hirt, Hu, Kim, Kirkpatrick, Lai, Li, Li, Lima, Luo, Mateescu, Miao, Nieuwstadt, Niu, Peng, Peskin, Peskin, Protas, Qian, Quirk, Russell, Sarrate, Shu, Shu, Shukla, Tsiveriotis, Udaykumar, Wang, Ye, Zhou   +42 more
core   +1 more source

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

Journal 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

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

Hard‐Magnetic Soft Millirobots in Underactuated Systems

Advanced Robotics Research, EarlyView.
This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang, Zixuan Zhang, Bingyan Li, Junkai Wang, Hongcheng Gu   +4 more
wiley   +1 more source

A Bibliometric Analysis of Flapping Wing Instrumentation

Aerospace, 2023
There are flapping wing-style systems being developed by various institutions around the world. However, despite there being many systems that superficially appear robust, there is no viable flapping wing flying system at this time.
Alex T. Lefik, Romeo M. Marian, Javaan S. Chahl   +2 more
doaj   +1 more source

Rotational accelerations stabilize leading edge vortices on revolving fly wings [PDF]

, 2009
The aerodynamic performance of hovering insects is largely explained by the presence of a stably attached leading edge vortex (LEV) on top of their wings. Although LEVs have been visualized on real, physically modeled, and simulated insects, the physical
Dickinson, Michael H., Lentink, David
core   +2 more sources

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