| 研究課題/領域番号 |
22K14424
|
|---|
| 研究機関 | 九州大学 |
|---|
研究代表者 |
陳 泓儒 九州大学, 工学研究院, 助教 (50904009)
|
|---|
| 研究期間 (年度) |
2022-04-01 – 2025-03-31
|
| キーワード | J2 perturbation / martian moons / binary asteroids / proximity orbiting / 3-body problem / quasi-periodic orbits / small-body exploration |
|---|
| 研究実績の概要 |
The dynamic model, J2-ER3BP+GH, to desribe the orbital dynamics around a small moon is developed. It incorporates the perturbation from the oblatenss on the orbit of the small moon and spacecraft around the moon, and can accomendate a full non-spherical gravity model of the small moon. Even though the model is sophisticated, bounded orbits can still be identified in this model by identifying the center manifold of the associated auxiliary autonomous 8-dimensional system. Baseline orbits around Phobos and Dimorphos from J2-ER3BP+GH become much easier to maintain in the high-fidelity dynamic and control environments.
|
| 現在までの達成度 (区分) |
現在までの達成度 (区分)
2: おおむね順調に進展している
理由
This research project progresses as planned.
|
| 今後の研究の推進方策 |
The orbiting stability has been improved via the passive approach, namely, the improvement of the validity of the dynamic model and baseline orbits. The next step is to further improve the orbting stability via the active approach. Orbit dynamical features (e.g., unstable directions) will be further analyzed in the J2-ER3BP and orbit control laws will be devised accordingly.
|
| 次年度使用額が生じた理由 |
Duties in school hinders full efforts in spending the budget of this project.
|
