| Texto completo | |
| Autor(es): |
Gagg Filho, L. A.
;
da Silva Fernandes, S.
Número total de Autores: 2
|
| Tipo de documento: | Artigo Científico |
| Fonte: | REVISTA MEXICANA DE ASTRONOMIA Y ASTROFISICA; v. 59, n. 1, p. 33-pg., 2023-04-01. |
| Resumo | |
This work describes several models to design optimal interplanetary trajectories. The transfer problem consists in transferring a space vehicle from a circular low Earth orbit (LEO) to a circular low orbit around a destiny planet (Venus or Mars). Models based on the two-body, four-body, and five-body problems are considered. Also, several versions of the patched-conic approximation are utilized including a detailed version that designs a lunar swing-by maneuver. The results show that the optimal trajectories for Earth-Mars and Earth-Venus missions collide with the Moon if a lunar swing-by maneuver with an unspecified altitude of the closest approach is included in the trajectory design; however, sub-optimal trajectories that do not collide with the Moon exist, presenting a smaller fuel consumption than the trajectories without lunar swing-by and with no greater changes in the time of flight. (AU) | |
| Processo FAPESP: | 12/25308-5 - Determinação de trajetórias ótimas na dinâmica do problema restrito de três ou quatro corpos |
| Beneficiário: | Luiz Arthur Gagg Filho |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado |