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Initial Results of a New Method for Optimizing Low-Thrust Gravity-Assist Missions

Maiwald, Volker (2017) Initial Results of a New Method for Optimizing Low-Thrust Gravity-Assist Missions. International Symposium on Space Technology and Science, 2017-06-03 - 2017-06-09, Matsuyama, Japan.

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Kurzfassung

Further exploring our solar system is continuously becoming more challenging, thus gravity-assists and low-thrust propulsion are typical mission enablers. Combining both has the potential to improve performance even more. Typically, optimization for low-thrust gravity-assist missions is conducted only for the trajectory. To improve results, it is however desirable to include finding the gravity-assist in the optimization. This paper presents a method, able to evaluate a large number of mission candidates, defined by gravity-assist maneuvers and the trajectories in between, with the gravity-assist partner as one control variable. A heuristic search is conducted under application of a shape based trajectory model. The paper explains the structure of the control variables and their repercussions on the optimization and presents the initial results obtained for three major questions: Is the method overall usable? Can the search space be pruned with constraints based on the maximum obtainable Δv and the pool of possible gravity-assist partners? Can evolutionary algorithms be used to optimize such missions with the given method? The basic method has been effective in finding optimal gravity-assist partners for single-gravity-assist missions and shows potential for multi-gravity-assist missions as well. Derived from the optimization performance some conclusions about the search space topography are drawn.

elib-URL des Eintrags:https://elib.dlr.de/113304/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:Initial Results of a New Method for Optimizing Low-Thrust Gravity-Assist Missions
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Maiwald, Volkervolker.maiwald (at) dlr.dehttps://orcid.org/0000-0002-4591-0089NICHT SPEZIFIZIERT
Datum:Juni 2017
Referierte Publikation:Nein
Open Access:Nein
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Status:veröffentlicht
Stichwörter:gravity-assist optimization, low-thrust trajectory
Veranstaltungstitel:International Symposium on Space Technology and Science
Veranstaltungsort:Matsuyama, Japan
Veranstaltungsart:internationale Konferenz
Veranstaltungsbeginn:3 Juni 2017
Veranstaltungsende:9 Juni 2017
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Raumfahrt
HGF - Programmthema:Technik für Raumfahrtsysteme
DLR - Schwerpunkt:Raumfahrt
DLR - Forschungsgebiet:R SY - Technik für Raumfahrtsysteme
DLR - Teilgebiet (Projekt, Vorhaben):R - Systemanalyse Raumsegment (alt)
Standort: Bremen
Institute & Einrichtungen:Institut für Raumfahrtsysteme > Systemanalyse Raumsegment
Hinterlegt von: Maiwald, Volker
Hinterlegt am:26 Jul 2017 10:51
Letzte Änderung:24 Apr 2024 20:17

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