Five-impulse low-energy earth-moon transfer using manifolds

S An, M Liu, H Li, F Wu - Advances in Space Research, 2024 - Elsevier
The libration points in the Earth-Moon and Sun-Earth systems are widely regarded as cost-
effective gateways into interstellar space. The associated manifold tubes have been utilized …

Designing Low-Thrust Transfers near Earth–Moon via Multi-Objective Reinforcement Learning

CJ Sullivan, N Bosanac, RL Anderson - Journal of Spacecraft and …, 2023 - arc.aiaa.org
Multi-objective reinforcement learning is used to uncover a subset of the multi-objective
solution space for low-thrust transfers between two L 2 southern halo orbits in the Earth …

Exploring transfers between earth-moon halo orbits via multi-objective reinforcement learning

CJ Sullivan, N Bosanac, RL Anderson… - 2021 IEEE …, 2021 - ieeexplore.ieee.org
Multi-Reward Proximal Policy Optimization, a multiobjective deep reinforcement learning
algorithm, is used to examine the design space of low-thrust trajectories for a SmallSat …

Exploration of Long Time-of-Flight Three-Body Transfers Using Deep Reinforcement Learning

K Yanagida, N Ozaki, R Funase - AIAA Scitech 2020 Forum, 2020 - arc.aiaa.org
Low-energy transfers reduce the total∆ V in deep space missions by exploiting multibody
dynamics. However, searching for initial guesses in highly nonlinear systems is often a …

Multiple SSO Space Debris Flyby Trajectory Design Based on Cislunar Orbit

S Zhang, S Wang - Universe, 2024 - mdpi.com
This paper investigates the trajectory design problem in the scenario of a multiple Sun-
synchronous Orbit (SSO) space debris flyby mission from a DRO space station. At first, the …

Approximation methods for quick evaluation of invariant manifolds during global optimization

R Beeson, D Bunce, VL Coverstone - AIAA/AAS Astrodynamics …, 2016 - arc.aiaa.org
The purpose of this paper is to explore potential methods for improving approximation
methods of invariant manifolds. The ultimate goal is to produce a set of methods and …

Automated global optimization of low-energy trajectories using a hybrid optimal control framework

VJ Shah - 2017 - ideals.illinois.edu
Leveraging dynamical structures found in the three-body problem provides opportunities to
explore transfers that utilize considerably less fuel, thus gaining the moniker of low-energy …

Automated detection of invariant manifold intersections using grid based approach

JD Aurich - 2017 - ideals.illinois.edu
When designing spacecraft trajectories, there exist cases where a trade-off between time-of-
flight and fuel become crucial to the mission design scenario, especially for unmanned …

Exploring Transfers Between Earth-Moon Halo Orbits via Multi-Objective Reinforcement Learning

AK Mashiku, JR Stuart, N Bosanac, CJ Sullivan… - 2021 - ntrs.nasa.gov
Multi-Reward Proximal Policy Optimization, a multi-objective deep reinforcement learning
algorithm, is used to examine the design space of low-thrust trajectories for a SmallSat …