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Optimal space trajectories using solar electric propulsion (Sep) and gravity assisted maneuver, with genetic algorithm

Grant number: 09/16517-7
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): January 01, 2010
Effective date (End): December 31, 2013
Field of knowledge:Engineering - Aerospace Engineering
Principal researcher:Antônio Fernando Bertachini de Almeida Prado
Grantee:Denilson Paulo Souza dos Santos
Home Institution: Instituto Nacional de Pesquisas Espaciais (INPE). Ministério da Ciência, Tecnologia e Inovações (Brasil). São José dos Campos , SP, Brazil
Associated research grant:11/08171-3 - Orbital dynamics of minor bodies, AP.TEM


The future of the interplanetary missions is to use the conventional rockets to leave the sphere of influence of the Earth, and solar electric propulsion (SEP) to accomplish the other maneuvers of the mission. In this work the optimization of maneuvers will be approached in interplanetary missions using solar electric propulsion and Gravity Assisted Maneuver attended to reduce the costs of the mission. Exploring the high specific pulse and the capacity of the electric propulsion to obtain a Gravity Assisted Maneuver with the Earth after a year of the departure of the spacecraft. Missions for several close asteroids the Earth will be considered. The analysis suggests criteria for the definition of initial solutions demanded for the process of optimization of trajectories. These studies will use the Maximal Pontryagin Principle of the variacional calculation for minimum time of the trajectories through indirect optimization methods.The indirect optimization method will be used in the simulations. (AU)

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Scientific publications (4)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
FORMIGA, JORGE KENNETY S.; DOS SANTOS, DENILSON P. S. Orbital maneuvers to reach and explore a triple asteroid. COMPUTATIONAL & APPLIED MATHEMATICS, v. 35, n. 3, p. 893-905, OCT 2016. Web of Science Citations: 1.
SOUZA DOS SANTOS, DENILSON PAULO; DA SILVA FORMIGA, JORGE KENNETY. Application of a genetic algorithm in orbital maneuvers. COMPUTATIONAL & APPLIED MATHEMATICS, v. 34, n. 2, p. 437-450, JUL 2015. Web of Science Citations: 4.
SOUZA DOS SANTOS, DENILSON PAULO; BERTACHINI DE ALMEIDA PRADO, ANTONIO FERNANDO; ROCCO, EVANDRO MARCONI. The Study of the Asymmetric Multiple Encounters Problem and Its Application to Obtain Jupiter Gravity Assisted Maneuvers. MATHEMATICAL PROBLEMS IN ENGINEERING, 2013. Web of Science Citations: 0.
SOUZA DOS SANTOS, DENILSON PAULO; BERTACHINI DE ALMEIDA PRADO, ANTONIO FERNANDO; COLASURDO, GUIDO. Four-Impulsive Rendezvous Maneuvers for Spacecrafts in Circular Orbits Using Genetic Algorithms. MATHEMATICAL PROBLEMS IN ENGINEERING, 2012. Web of Science Citations: 3.

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