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Showing 1 to 4 of 4 for “"Sims-Flanagan"”.
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Robust preliminary design for multiple gravity assist spacecraft trajectories
… a particular shortcoming of the popular Sims-Flanagan bounded-impulse model, namely that its control nodes are distributed equally in time, clustering them at apoapsis for eccentric transfers, which reduces the control authority at periapsis. In response to this, a partially regularized …
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Automated planetary satellite tour planning with a novel low-thrust direct transcription method
… of a numerical optimizer employing the Sims-Flanagan transcription method. To illustrate the difficulty of low-thrust trajectory optimization in a dynamical system characterized by a short time scale, and to provide an example of a tool that would benefit from the previously mentioned …
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Spacecraft trajectory optimization using many embedded Lambert problems
… a coast-impulse model, similar to the well-known Sims-Flanagan model. Use of EBVPs is not new to spacecraft trajectory optimization, extensively used in primer vector theory, flyby-tour design, direct impulsive-maneuver optimization, and more. Lack of fast and accurate BVP solvers has prevented …
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Automated trajectory planning for multiple-flyby interplanetary missions
… method that proved reliable enough were the Sims-Flanagan transcription coupled with a nonlinear programming solver and the monotonic basin hopping (MBH) global search heuristic. The methods developed here are demonstrated to optimize a set of example trajectories, including a recreation of …