Tightly Coupled CFD/Multibody Analysis of Flapping-Wing Micro-Aerial Vehicles

2011 ◽  
Author(s):  
Pierangelo Masarati ◽  
Marco Morandini ◽  
Giuseppe Quaranta ◽  
Dominic Chandar ◽  
Beatrice Roget ◽  
...  
Keyword(s):  
Flapping Wing ◽  
Micro Aerial Vehicles ◽  
Aerial Vehicles ◽  
Tightly Coupled

Recent progress in flapping wings for micro aerial vehicle applications

2020 ◽  
pp. 095440622091742
Author(s):  
Naeem Haider ◽  
Aamer Shahzad ◽  
Muhammad Nafees Mumtaz Qadri ◽  
Syed Irtiza Ali Shah
Keyword(s):  
Leading Edge ◽  
Flapping Wing ◽  
Flapping Wings ◽  
Structural Flexibility ◽  
Micro Aerial Vehicles ◽  
Flexible Wings ◽  
Performance Variables ◽  
Aerial Vehicles ◽  
Wide Range ◽  
Wing Geometry

Micro aerial vehicles using flapping wings are under investigation, as an alternative to fixed-wing and rotary-wing micro aerial vehicles. Such flapping-wing vehicles promise key potential advantages of high thrust, agility, and maneuverability, and have a wide range of applications. These applications include both military and commercial domains such as communication relay, search and rescue, visual reconnaissance, and field search. With the advancement in the computational sciences, developments in flapping-wing micro aerial vehicles have progressed exponentially. Such developments require a careful aerodynamic and aeroelastic design of the flapping wing. Therefore, aerodynamic tools are required to study such designs and configurations. In this paper, the role of several parameters is investigated, including the types of flapping wings, the effect of the kinematics and wing geometry (shape, configuration, and structural flexibility) on performance variables such as lift, drag, thrust, and efficiency in various modes of flight. Kinematic variables have a significant effect on the performance of the flapping wing. For instance, a high flap amplitude and pitch rotation, which supports the generation of the strong leading-edge vortex, generates higher thrust. Likewise, wing shape, configuration, and structural flexibility are shown to have a large impact on the performance of the flapping wing. The wing with optimum flexibility maximizes thrust where highly flexible wings lead to performance degradation due to change in the effective angle of attack. This study shows that the development of the flexible flapping wing with performance capabilities similar to those of natural fliers has not yet been achieved. Finally, opportunities for additional research in this field are recommended.

scholarly journals Full Flight Envelope and Trim Map of Flapping-Wing Micro Aerial Vehicles

2020 ◽  
Vol 43 (12) ◽  
pp. 2218-2236
Author(s):  
Taylor S. Clawson ◽  
Silvia Ferrari ◽  
E. Farrell Helbling ◽  
Robert J. Wood ◽  
Bo Fu ◽  
...  
Keyword(s):  
Flapping Wing ◽  
Micro Aerial Vehicles ◽  
Aerial Vehicles ◽  
Flight Envelope

scholarly journals Coupled piezoelectric fans with two degree of freedom motion for the application of flapping wing micro aerial vehicles

2008 ◽  
Vol 147 (2) ◽  
pp. 607-612 ◽  
Author(s):  
Hsien-Chun Chung ◽  
K. Lal Kummari ◽  
S.J. Croucher ◽  
N.J. Lawson ◽  
S. Guo ◽  
...  
Keyword(s):  
Flapping Wing ◽  
Degree Of Freedom ◽  
Micro Aerial Vehicles ◽  
Aerial Vehicles ◽  
Two Degree Of Freedom ◽  
Piezoelectric Fans

scholarly journals A wireless radiofrequency-powered insect-scale flapping-wing aerial vehicle

2021 ◽  
Vol 4 (11) ◽  
pp. 845-852
Author(s):  
Takashi Ozaki ◽  
Norikazu Ohta ◽  
Tomohiko Jimbo ◽  
Kanae Hamaguchi
Keyword(s):  
Electromagnetic Waves ◽  
Power Transmission ◽  
Flapping Wing ◽  
Micro Aerial Vehicles ◽  
Wireless Power ◽  
Lithium Polymer Batteries ◽  
Confined Spaces ◽  
Weight Density ◽  
Aerial Vehicles ◽  
Aerial Vehicle

AbstractInsect-scale aerial vehicles are useful tools for communication, environmental sensing and surveying confined spaces. However, the lack of lightweight high-power-density batteries has limited the untethered flight durations of these micro aerial vehicles. Wireless power transmission using radiofrequency electromagnetic waves could potentially offer transmissivity through obstacles, wave-targeting/focusing capabilities and non-mechanical steering of the vehicles via phased-array antennas. But the use of radiofrequency power transmission has so far been limited to larger vehicles. Here we show that a wireless radiofrequency power supply can be used to drive an insect-scale flapping-wing aerial vehicle. We use a sub-gram radiofrequency power receiver with a power-to-weight density of 4,900 W kg–1, which is five times higher than that of off-the-shelf lithium polymer batteries of similar mass. With this system, we demonstrate the untethered take off of the flapping-wing micro aerial vehicle. Our RF-powered aircraft has a mass of 1.8 g and is more than 25 times lighter than previous radiofrequency-powered micro aerial vehicles.

scholarly journals Modeling and control of flapping wing micro aerial vehicles

2019 ◽  
Vol 14 (2) ◽  
pp. 026004 ◽  
Author(s):  
Shiba Biswal ◽  
Marc Mignolet ◽  
Armando A Rodriguez
Keyword(s):  
Flapping Wing ◽  
Micro Aerial Vehicles ◽  
Modeling And Control ◽  
Aerial Vehicles ◽  
And Control

scholarly journals Resonance-Driven Passive Folding/Unfolding Flapping Wing Actuator

2020 ◽  
Vol 10 (11) ◽  
pp. 3771
Author(s):  
Takashi Ozaki ◽  
Norikazu Ohta ◽  
Kanae Hamaguchi
Keyword(s):  
Theoretical Model ◽  
Flapping Wing ◽  
Micro Aerial Vehicles ◽  
Resonant System ◽  
Actuation System ◽  
Aerial Vehicles ◽  
Lift Forces ◽  
Small Insect ◽  
Good Agreement

The wings of flapping-wing micro aerial vehicles (MAVs) face the risk of breakage. To solve this issue, we propose the use of a biomimetic foldable wing. In this study, a resonant-driven piezoelectric flapping-wing actuator with a passive folding/unfolding mechanism was designed and fabricated, in which the folding/unfolding motion is passively realized by the centrifugal and lift forces due to the stroke motion of the wings. Although the passive folding/unfolding is a known concept, its feasibility and characteristics in combination with a resonant system have not yet been reported. Because the resonant actuation is necessary for extremely small, insect-scale MAVs, research is required to realize such MAVs with a foldable-wing mechanism. Therefore, we first examine and report the performance of the resonant-driven passive folding/unfolding mechanism. We also present a simplified theoretical model demonstrating an interaction between the resonant actuation system and folding/unfolding mechanism. We successfully demonstrate the folding/unfolding motion by the fabricated actuator. In addition, the theoretical model showed good agreement with the experiment.

Low-voltage electromagnetic actuators for flapping-wing micro aerial vehicles

2017 ◽  
Vol 265 ◽  
pp. 1-9 ◽  
Author(s):  
Zhiwei Liu ◽  
Xiaojun Yan ◽  
Mingjing Qi ◽  
Xiaoyong Zhang ◽  
Liwei Lin
Keyword(s):  
Low Voltage ◽  
Flapping Wing ◽  
Micro Aerial Vehicles ◽  
Electromagnetic Actuators ◽  
Aerial Vehicles
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