A miniature flapping-wing aircraft based on the principle of electrostatic self-excitation
A self-excited flapping-wing aircraft technology, applied in the field of micro-electromechanical systems, can solve the problems of reduced thrust-to-weight ratio and energy conversion efficiency of the drive system, low energy conversion efficiency of the aircraft, and complex structure. high effect
Active Publication Date: 2015-08-12
BEIHANG UNIV
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Problems solved by technology
However, due to the limitation of the working principle, the electrical-mechanical energy conversion efficiency of the piezoelectric ceramic driver is only 10%-30%, resulting in a very low overall energy conversion efficiency of the aircraft.
(2) Complex structure
However, the above-mentioned complex supporting system, in addition to being heavy, consumes more energy, resulting in a further reduction in the thrust-to-weight ratio and energy conversion efficiency of the entire drive system
Method used
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[0020] Such as figure 1 As shown, the present invention provides an implementation example of a miniature flapping-wing aircraft based on the principle of electrostatic self-excitation drive, including: a chest frame 1, a beam structure 2, wings 3, electrodes 4, a fuselage 5, supporting circuits 6, batteries 7. Foot support 8. Among them, the beam structure 2 and the wings 3 form a flapping wing structure, the chest skeleton 1 provides support for the beam structure 2 and the electrodes 4 , and the lower end is connected with the fuselage 5 . The body 5 is integrated with a battery 7 and a supporting circuit 6 , and the output end of the supporting circuit 6 provides adjustable DC voltage for the two electrodes 4 . The lower end of the fuselage 5 is connected to the foot support 8, and the foot support 8 can be used as an antenna and a balancing device for the aircraft.
[0021] Such as figure 2 As shown, the thoracic skeleton 1 is an insulator to prevent short-circuiting ...
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The invention relates to a flapping-wing micro aerial vehicle based on the static-electricity self-excitation driving principle. The flapping-wing micro aerial vehicle comprises a chest framework, a row beam structure, wings, electrodes, an aerial vehicle body, a power supply and a support circuit, as well as a foot bracket, wherein the chest framework is used for supporting the row beam structure and the electrode, the row beam structure is formed by a plurality of conductive micro beams arranged side by side, two ends of the row beam structure are bonded with the wings respectively to form a flapping-wing structure, the flapping-wing structure is in a double-end simply-support state in the chest framework, is positioned between the two electrodes and is in parallel to the electrodes, the aerial vehicle body is connected below the chest framework, a battery and a support circuit are integrated on the aerial vehicle body, the power supply and the support circuit supply adjustable direct current voltage for the two electrodes, the foot bracket is connected below the aerial vehicle body and is used as an antenna and a balancing device of the aerial vehicle. The flapping-wing micro aerial vehicle has simple structure, light weight and high energy conversion efficiency and is easy to microminiaturize.
Description
technical field [0001] The invention relates to a device combining the technical field of micro-electromechanical technology and the technical field of micro-aircraft, specifically a micro-flapping-wing aircraft driven by DC voltage based on the principle of self-excited vibration of structures in an electrostatic field. Background technique [0002] Compared with fixed-wing and rotary-wing micro-aircraft, micro-aircraft with flapping wings have higher aerodynamic efficiency and better maneuverability. It is easier to realize functions such as rapid take-off, acceleration, and hovering. It is suitable for performing tasks in narrow spaces such as jungles, streets, and indoors. The maneuverability, endurance and other important flight indicators of the flapping-wing aircraft are closely related to the drive system it adopts. Therefore, the exploration, research and development of the flapping-wing aircraft's drive system has always been a hot issue in the academic and industri...
Claims
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IPC IPC(8): B64C33/00B64C33/02
Inventor 闫晓军漆明净
Owner BEIHANG UNIV