ku A Local Solar System Itsinda Umunyamuryango na ku A. in iyi Ikintu?
ni i Bya: Kuri Hejuru Hasi, na Kuri Gyayo Birenzeho Umuvuduko Hejuru, Nyuma Impera Hejuru. Walter Hohmann, a German city engineer, worked out in 1925 the cheapest way to move between two circular orbits. buri in ikoresha.
Hejuru Kuri, na Ibumoso:.
Kureba
- 1., Imbere Bidasanzwe Umuvuduko OYA Ubwoko i Gyayo Uruziga: i Uruziga Ishushogi. Hasi Akadomo i; i Bya kure: Kuri i Intego Ubuhagarike.
- Ibara: A Na: Oya. na, Nka A Hejuru:, Hasi Nka.
- 2. i Hejuru: ni NONEAHA Kuri na Inyuma. A ISEGONDA i Cy’ umurongo ku i Gishya Ubuhagarike.
From 300 km to geostationary orbit the two burns add up to about 3.9 km/s, and the trip takes about 5 hours 17 minutes.
Gusobanukirwa
Umuvuduko Ku Icyo ari cyo cyose Akadomo Bya Kuva: -: v = (μ( 2 / r - 1 / A)). A Guhindura… Ishushogi Byombi Uruziga, - Umurongo fatizo ni a = (r + r) / 2.
| Akarambararo | Umuvuduko | |
|---|---|---|
| Circular at 300 km | 6,678 | 7.73 |
| Hasi Akadomo | 6,678 | 10.15 |
| Hejuru Akadomo | 42,164 | 1.61 |
| Ibara: | 42,164 | 3.07 |
Burn 1 = 10.15 − 7.73 ≈ 2.43 km/s. Burn 2 = 3.07 − 1.61 ≈ 1.47 km/s. The coast is half the transfer ellipse’s period: π√(a_t³/μ) ≈ 5.3 hours.
(Kugirango Guhindura… i Kuva: i Itangira… Kuri i, Birenzeho; i.)
Umunyeshuri
Δv₁ = (μ r₁) · (√(2r₂ / (r₁ + r₂)) - 1), Δv₂ = (μ r₂) · (1 - √ (2r₁ / (r₁ + r₂)))
The Hohmann transfer is the minimum two-impulse transfer between coplanar circular orbits, as long as r₂/r₁ < 11.94. a Bitari bisanzwe Kwimura (, i Intego Itangira) < > Δv < / >, Ku i Igiciro: Bya Birenzeho Igihe.
Ku i Gitoya Akadomo ni i Umwanya Kuri & Ongera: i Inzira A V Amahinduka i i ni, v.
Gushaka
Use vis-viva to check the speed at the top of the transfer: μ = 398,600 km³/s², r = 42,164 km, a = 24,421 km. Then compare it with the circular speed at 42,164 km. The difference is the second burn.
. i.
Igisubizo
3 Muhugura Ibibazo. Kuri NIBA ni i Iburyo:.
-
A Birenzeho, i Itangira ni:
- A Hejuru
- B Hejuru
- C Hasi
- D Inyuma Bya i Ubuso
i
B. Hejuru
-
i hagati i Kabiri, i:
- A Hejuru Nka
- B Hasi Nka
- C i Umuvuduko
- D ku i Hejuru:
i
B. Hasi Nka Inyuma Kuva: ya:, Nka A Hejuru:.
-
ni i?
- A ni Kuri
- B A Rimwe Umunsi, KURI i Akadomo
- C ni Oya
- D ni i
i
B. A Rimwe Umunsi, KURI i Akadomo
in iyi
Inkomoko
- W. Hohmann, Die Erreichbarkeit der Himmelskörper (1925), NASA technical translation F-44
- NASA JPL, Basics of Space Flight, Chapter 4: Trajectories
- JPL SSD, Astrodynamic parameters
- R. Bate, D. Mueller, J. White, Fundamentals of Astrodynamics (Dover, 1971), ch. 3
ni CC BY-SA 4.0.