Searched for: subject%3A%22Low%255C-thrust%255C+propulsion%22
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document
Goldman, Thomas (author)
This thesis proposes an unsupervised Physics-Informed Neural Network (PINN) for solving optimal control problems with the direct method to design and optimize transfer trajectories. The network adheres analytically to boundary conditions and includes the objective fitness as regularization in its loss function. A test scenario of a planar Earth...
master thesis 2023
document
Fernández Martín, Enrique (author)
Temporarily Captured Orbiters (TCOs) - also known as Earth’s mini-moons – are meter-size asteroid fragments temporarily trapped in the Earth-Moon system. TCOs are challenging to identify due to their small size and high speed. While only two TCOs have been confirmed so far, studies suggest a constant presence of at least one TCO at any given...
master thesis 2023
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Cowan, Sean (author)
While the space industry expands rapidly and space exploration becomes ever more relevant, this thesis aims to automate the design of Multiple Gravity-Assist (MGA) transfers using low-thrust propulsion. In particular, during the preliminary design phase of space missions, the combinatorial complexity of MGA sequencing is large and current...
master thesis 2023
document
van Lith, Thijs (author)
Low-thrust propulsion has gained more popularity over the past few decades because of its high efficiency. Interplanetary transfer trajectories in particular benefit from low-thrust propulsion, considering the typically high Delta V to be achieved. In order to allow a fast design of such missions, first-order, efficient representations of...
master thesis 2020
document
Stubbig, Leon (author)
Building on recent advances in the fields of low-thrust trajectory optimization based on shaping methods, Artificial Neural Networks, and surrogate models in Evolutionary Algorithms, an investigation into a novel optimization routine is conducted. A flexible Python tool to evaluate linked trajectories in a two-body model based on the hodographic...
master thesis 2019
document
Heiligers, M.J. (author), van den Oever, Tom (author), Ceriotti, M. (author), Mulligan, P. (author), McInnes, CR (author)
A pole-sitter is a satellite that is stationed along the polar axis of the Earth, or any other planet, to generate a continuous, hemispherical view of the planet’s polar regions. In order to maintain such a vantage point, a low-thrust propulsion system is required to counterbalance the gravitational attraction of the planet and the Sun. Previous...
conference paper 2017
Searched for: subject%3A%22Low%255C-thrust%255C+propulsion%22
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