超軽量小型航空機の太陽光発電による持続飛行
Wei Shen1, Jinzhe Peng1, Rui Ma1
1School of Energy and Power Engineering, Beihang University, Beijing, China.
Nature
|July 17, 2024
まとめ
研究 者 たち は,自然 の 陽 の 光 だけ を 利用 し て 持続 的 な 飛行 を 達成 する 静電 微小 飛行 器 (MAV) CoulombFly を 開発 し まし た. この超軽量 MAVは 小型飛行装置の耐久性の限界を克服しました
科学分野:
- ロボット
- 航空宇宙工学
- 持続可能なエネルギー
背景:
- マイクロ航空機 (MAV) は,特に10グラム未満の航空機は,通常はわずか10分間の飛行期間で大きな制限に直面しています.
- 太陽光発電はMAVの耐久性を伸ばすための潜在的な解決策ですが,ペイロード容量と推進効率の課題は,太陽光で動かす飛行を妨げています.
研究 の 目的:
- 超軽量小型航空機の飛行時間制限を克服する.
- 自然な太陽光だけで動いている 微小な航空機の 持続的な飛行を実現するために
主な方法:
- コロンブフライ (CoulombFly) の紹介
- 高揚力効率の静電推進システム (30.7 g W−1) の開発
- 低電力消費 (0.568W) の超軽量キロボルト電源システムの統合
主要な成果:
- CoulombFlyは,自然光 (920 Wm−2) で持続的な飛行を達成しました.
- 電気静的推進システムは,高揚力効率を示した.
- 車両の総重量は4.21グラムです
結論:
- CoulombFlyは太陽光発電による マイクロ航空機の技術における 画期的な進歩です
- この開発は,MAVの持続的な飛行を可能にし,以前の耐久性の障壁を克服します.
- 静電推進と超軽量設計により,より実用的で長期に渡る MAV アプリケーションへの道が開けます.
関連する概念動画
Light as Energy
78.2K
The energy required to carry out photosynthesis is light— typically electromagnetic radiation from the sun. The range of all possible wavelengths is known as the electromagnetic spectrum.
Photons
A photon is a discrete electromagnetic particle or bundle of energy. Photons are characterized by their frequency, wavelength, and amplitude, similar to the properties of a wave. Waves with higher frequencies transmit more energy and have shorter wavelengths than longer wavelengths that transmit...
Photons
A photon is a discrete electromagnetic particle or bundle of energy. Photons are characterized by their frequency, wavelength, and amplitude, similar to the properties of a wave. Waves with higher frequencies transmit more energy and have shorter wavelengths than longer wavelengths that transmit...
78.2K
Lift
83
Lift is a fundamental aerodynamic force that acts perpendicular to the direction of airflow. It plays a central role in achieving and sustaining flight and in stabilizing various vehicles. Lift primarily originates from pressure differences created across surfaces, such as an airfoil. A lower pressure region forms above the wing, while a higher pressure region forms below it, generating an upward force. This differential results from the shape and orientation of the airfoil, enabling the wing...
83
Weightlessness
5.0K
When an object is dropped, it accelerates toward the center of the Earth. If the net external force on the object is its weight, it is said to be in free fall; that is, the only force acting on the object is gravity. Galileo was instrumental in showing that, in the absence of air resistance, all objects fall with the same acceleration g. However, when objects on the Earth fall downward, they are never truly in free fall, because there is always some upward resistance force from the air acting...
5.0K
Rocket Propulsion in Empty Space - I
3.2K
The driving force for the motion of any vehicle is friction, but in the case of rocket propulsion in space, the friction force is not present. The motion of a rocket changes its velocity (and hence its momentum) by ejecting burned fuel gases, thus causing it to accelerate in the direction opposite to the velocity of the ejected fuel. In this situation, the mass and velocity of the rocket constantly change along with the total mass of ejected gases. Due to conservation of momentum, the...
3.2K


