| Texto completo | |
| Autor(es): |
Murcia Pineros, Jhonathan O.
;
Bertachini de Almeida Prado, Antonio F.
;
dos Santos, Walter Abrahao
;
de Moraes, Rodolpho Vilhena
Número total de Autores: 4
|
| Tipo de documento: | Artigo Científico |
| Fonte: | SCIENTIFIC REPORTS; v. 12, n. 1, p. 10-pg., 2022-03-23. |
| Resumo | |
The perturbative integral method was applied to quantify the contribution of external forces during a specific interval of time in trajectories of spacecraft around asteroids and under the Luni-solar influence. However, this method has not been used to quantify the contributions of drag in aerocapture and aerobraking. For this reason, the planet Mars is selected to apply this method during an aerogravity-assisted maneuver. Several trajectories are analyzed, making use of a drag device with area to mass ratios varying from 0.0 to 20.0 m(2)/kg, simulating solar sails or de-orbit devices. The mathematical model is based in the restricted three-body problem. The use of this maneuver makes it possible to obtain the variations of energy in the trajectory, replacing expensive maneuvers based on fuel consumption. To observe the effects of the maneuvers, different values of pericenter velocity and altitude were selected for prograde and retrograde orbits. The innovation of this research is the application of an integral method to quantify the delta-V of the aero gravity maneuver, comparing the cost of the maneuver with the traditional methods of space propulsion. The results allow the identification of orbits with conditions to capture, and the perturbative maps show the velocity variations. (AU) | |
| Processo FAPESP: | 16/24561-0 - A relevância dos pequenos corpos em dinâmica orbital |
| Beneficiário: | Othon Cabo Winter |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |
| Processo FAPESP: | 19/26605-2 - Otimização de manobras aero assistidas com auxílio de propulsão e controle nos ângulos aerodinâmicos |
| Beneficiário: | Jhonathan Orlando Murcia Piñeros |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |