Optimal Low-Thrust Escape Trajectories Using Gravity Assist

1999 ◽  
Vol 22 (5) ◽  
pp. 637-642 ◽  
Author(s):  
Lorenzo Casalino ◽  
Guido Colasurdo ◽  
Dario Pastrone
Keyword(s):  
Low Thrust ◽  
Gravity Assist ◽  
Escape Trajectories

Low-Thrust Trajectory Optimization Procedure for Gravity-Assist, Outer-Planet Missions

2006 ◽  
Vol 43 (1) ◽  
pp. 121-129 ◽  
Author(s):  
Byoungsam Woo ◽  
Victoria L. Coverstone ◽  
Michael Cupples
Keyword(s):  
Trajectory Optimization ◽  
Optimization Procedure ◽  
Outer Planet ◽  
Low Thrust ◽  
Gravity Assist

scholarly journals Design Of Lunar-Gravity-Assisted Escape Trajectories

2020 ◽  
Vol 67 (4) ◽  
pp. 1374-1390
Author(s):  
Lorenzo Casalino ◽  
Gregory Lantoine
Keyword(s):  
Lunar Gravity ◽  
Gravity Assist ◽  
Analytical Treatment ◽  
Direct Optimization ◽  
Earth Asteroid ◽  
Combined Use ◽  
Escape Trajectories ◽  
Gravity Assists ◽  
Lunar Gravity Assist ◽  
Near Earth Asteroids

AbstractLunar gravity assist is a means to boost the energy and C3 of an escape trajectory. Trajectories with two lunar gravity assists are considered and analyzed. Two approaches are applied and tested for the design of missions aimed at Near-Earth asteroids. In the first method, indirect optimization of the heliocentric leg is combined to an approximate analytical treatment of the geocentric phase for short escape trajectories. In the second method, the results of pre-computed maps of escape C3 are employed for the design of longer Sun-perturbed escape sequences combined with direct optimization of the heliocentric leg. Features are compared and suggestions about a combined use of the approaches are presented. The techniques are efficiently applied to the design of a mission to a near-Earth asteroid.

scholarly journals Evolutionary Neurocontrol: A Novel Method for Low-Thrust Gravity-Assist Trajectory Optimization

2009 ◽  
Vol 32 (2) ◽  
pp. 616-625 ◽  
Author(s):  
Ian Carnelli ◽  
Bernd Dachwald ◽  
Massimiliano Vasile
Keyword(s):  
Trajectory Optimization ◽  
Low Thrust ◽  
Gravity Assist ◽  
Novel Method

Fuel optimal low thrust rendezvous with outer planets via gravity assist

2011 ◽  
Vol 54 (4) ◽  
pp. 756-769 ◽  
Author(s):  
TieDing Guo ◽  
FangHua Jiang ◽  
HeXi Baoyin ◽  
JunFeng LI
Keyword(s):  
Low Thrust ◽  
Gravity Assist ◽  
Outer Planets
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