関連する実験動画
Updated: Feb 19, 2026

06:14
Simulating Imaging of Large Scale Radio Arrays on the Lunar Surface
Published on: July 30, 2020
5.4K
暗黙の時間ステップを使用した小型衛星のための太陽光パネル展開メカニズムの設計とシミュレーション
George B Saad1, Ahmed R Desoki2,3, Mohamed Kassab2
1Egyptian Space Agency, New Cairo, 11865, Egypt. george.saad@egsa.gov.eg.
Scientific reports
|February 17, 2026
まとめ
強力な太陽光パネル展開メカニズム (SADM) の設計は,衛星ミッションにとって極めて重要です. この研究は,新しいSADM設計を提示し,スムーズな展開と穏やかなロックのために最適化され,シミュレートされ,収束の課題を克服します.
科学分野:
- 宇宙工学は,宇宙工学である.
- 機械工学の機械工学
- 衛星技術に関する技術.
背景:
- 衛星太陽光パネル (SA) は,打ち上げ時に折りたたまれ,軌道上に展開されます.
- SA展開メカニズム (DM) は極めて重要で,失敗するとミッションが失われます.
- SAの展開には,安全な展開とロックを可能にする頑丈な設計が必要です.
研究 の 目的:
- 制御された展開速度と穏やかなロックを備えた堅牢なソーラーアレイ展開メカニズム (SADM) を設計する.
- 信頼性のためにSADM設計を最適化し,衛星およびSAの損傷を防ぐために.
- 暫定的な有限要素分析 (FEA) によるSADM設計の検証.
主な方法:
- 新しいソーラーアレイ展開メカニズム (SADM) の設計と最適化.
- シミュレーションのための暗黙の時間段階のスキームを使用して,一時的な有限要素分析 (FEA).
- 大規模なローテーションと複雑な接触から生じる収束の困難に対処し,克服する.
主要な成果:
- 合理的な展開速度とスムーズなロックを備えたSADM設計が達成されました.
- FEAのシミュレーションにより,設計の実行可能性が確認されました.
- 複雑なメカニズムシミュレーションにおける収束問題を克服するための方法論が実証されました.
結論:
- 提示されたSADM設計は,衛星太陽光パネルの展開のための信頼性の高いソリューションを提供します.
- FEAシミュレーションは,そのようなメカニズムを検証し,最適化するための貴重なツールです.
- この発見は,他のゆっくり動く機械システムの設計とシミュレーションに適用できます.
関連する概念動画
Implicit Differentiation
75
In classical mechanics, motion is often described through relationships between spatial coordinates and time. A car moving along a straight highway with constant acceleration serves as a simple case where velocity is an explicit function of time. This scenario results in a linear equation, enabling straightforward analysis using basic differentiation techniques.In contrast, a satellite in circular orbit follows a path defined by an implicit function. The position of the satellite is constrained...
75
Radiation Pressure: Problem Solving
881
The radiation pressure applied by an electromagnetic wave on a perfectly absorbing surface equals the energy density of the wave. The wave's momentum also gets transferred to the surface when an electromagnetic wave is entirely absorbed by it. The rate at which momentum is transmitted to an absorbing surface perpendicular to the propagation direction equals the force on the surface.
The average value of the rate of momentum transfer divided by the absorbing area represents the average force...
The average value of the rate of momentum transfer divided by the absorbing area represents the average force...
881
Circular Orbits and Critical Velocity for Satellites
5.5K
The Moon orbits around the Earth. In turn, the Earth (and other planets) orbit the Sun. The space directly above our atmosphere is filled with artificial satellites in orbit. One can examine the circular orbit, the simplest kind of orbit, to understand the relationship between the speed and the period of planets and satellites with respect to their positions and the bodies that they orbit.
Nicolaus Copernicus (1473-1543) first suggested that the Earth and all other planets orbit the Sun in...
Nicolaus Copernicus (1473-1543) first suggested that the Earth and all other planets orbit the Sun in...
5.5K
Space Trusses: Problem Solving
929
A space truss is a three-dimensional counterpart of a planar truss. These structures consist of members connected at their ends, often utilizing ball-and-socket joints to create a stable and versatile framework. Due to its adaptability and capacity to withstand complex loads, the space truss is widely used in various construction projects.
Consider a tripod consisting of a tetrahedral space truss with a ball-and-socket joint at C. Suppose the height and lengths of the horizontal and vertical...
Consider a tripod consisting of a tetrahedral space truss with a ball-and-socket joint at C. Suppose the height and lengths of the horizontal and vertical...
929
Relative Motion Analysis using Rotating Axes-Problem Solving
783
Consider a crane whose telescopic boom rotates with an angular velocity of 0.04 rad/s and angular acceleration of 0.02 rad/s2. Along with the rotation, the boom also extends linearly with a uniform speed of 5 m/s. The extension of the boom is measured at point D, which is measured with respect to the fixed point C on the other end of the boom. For the given instant, the distance between points C and D is 60 meters.
Here, in order to determine the magnitude of velocity and acceleration for point...
Here, in order to determine the magnitude of velocity and acceleration for point...
783
Design Example: Traverse Angle Computations
361
Traverse angle computations are a critical component of surveying, used to compute the internal angles within a closed traverse. A traverse consists of a series of connected lines forming a closed loop, often used for land boundary delineation or mapping. Calculating the internal angles ensures accuracy in the traverse geometry and is essential for checking survey data integrity.The process begins with known azimuths and bearings of the traverse sides. Internal angles at each vertex are...
361

