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Interplanetary Trajectory Optimization for a SEP Mission to Saturn

Spurmann, Jörn and Ohndorf, Andreas and Dachwald, Bernd and Seboldt, Wolfgang and Löb, Horst and Schartner, Karl-Heinz (2009) Interplanetary Trajectory Optimization for a SEP Mission to Saturn. International Astronautical Congress 2009, 12.-16. Okt. 2009, Daejon, Korea.

Full text not available from this repository.

Abstract

The recently proposed NASA and ESA missions to Saturn and Jupiter pose difficult tasks to mission designers because chemical propulsion scenarios are not capable of transferring heavy spacecraft into the outer solar system without the use of gravity assists. Thus our developed mission scenario based on the joint NASA/ESA Titan Saturn System Mission baselines solar electric propulsion to improve mission flexibility and transfer time. For the calculation of near-globally optimal low-thrust trajectories, we have used a method called Evolutionary Neurocontrol, which is implemented in the low-thrust trajectory optimization software InTrance. The studied solar electric propulsion scenario covers trajectory optimization of the interplanetary transfer including variations of the spacecraft's thrust level, the thrust unit's speci c impulse and the solar power generator power level. Additionally developed software extensions enabled trajectory optimization with launcher-provided hyperbolic excess energy, a complex solar power generator model and a variable speci c impulse ion engine model. For the investigated mission scenario, Evolutionary Neurocontrol yields good optimization results, which also hold valid for the more elaborate spacecraft models. Compared to Cassini/Huygens, the best found solutions have faster transfer times and a higher mission flexibility in general.

Item URL in elib:https://elib.dlr.de/63541/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:Interplanetary Trajectory Optimization for a SEP Mission to Saturn
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Spurmann, Jörnjoern.spurmann (at) dlr.deUNSPECIFIED
Ohndorf, Andreasandreas.ohndorf (at) dlr.deUNSPECIFIED
Dachwald, Bernddachwald (at) fh-aachen.deUNSPECIFIED
Seboldt, Wolfgangwolfgang.seboldt (at) dlr.deUNSPECIFIED
Löb, Horsthorst.w.loeb (at) exp1.physik.uni-giessen.deUNSPECIFIED
Schartner, Karl-Heinzkarl-heinz.schartner (at) exp1.physik.uni-giessen.deUNSPECIFIED
Date:October 2009
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Keywords:SEP, Trajectory, Optimization, Saturn, Mission, Analysis
Event Title:International Astronautical Congress 2009
Event Location:Daejon, Korea
Event Type:international Conference
Event Dates:12.-16. Okt. 2009
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W - no assignment
DLR - Research area:Space
DLR - Program:W - no assignment
DLR - Research theme (Project):W - no assignment (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Space Operations and Astronaut Training > GSOC-German Space Operations Center
Deposited By: Spurmann, Jörn
Deposited On:08 Mar 2010 10:09
Last Modified:08 Mar 2010 10:09

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