The aim of this Note is to provide a comprehensive study of asteroid hovering from a fuel-consumption viewpoint, under the assumption that the asteroid is modeled as a second-degree and second-order nonspherical gravitational field. Our analysis first relies on an analytical, although approximate, approach to determine the critical hovering orientations and to quantify the fuel-consumption extrema. The linear stability for a given hovering distance is investigated, and a homotopic method is adopted as an effective tool to emphasize the fuel-optimal control problem. In particular, the optimal trajectories toward a stable minimum-fuel hovering point are found by first solving the simpler energy-optimal problem. The initial (unknown) costate vector is calculated with a normalization technique in such a way that the sensitivity of the two-point boundary-value problem (TPBVP) to the initial guess is significantly mitigated.
Asteroid hovering missions from a fuel-consumption viewpoint
Mengali GFormal Analysis
;Quarta APenultimo
Methodology
;
2020-01-01
Abstract
The aim of this Note is to provide a comprehensive study of asteroid hovering from a fuel-consumption viewpoint, under the assumption that the asteroid is modeled as a second-degree and second-order nonspherical gravitational field. Our analysis first relies on an analytical, although approximate, approach to determine the critical hovering orientations and to quantify the fuel-consumption extrema. The linear stability for a given hovering distance is investigated, and a homotopic method is adopted as an effective tool to emphasize the fuel-optimal control problem. In particular, the optimal trajectories toward a stable minimum-fuel hovering point are found by first solving the simpler energy-optimal problem. The initial (unknown) costate vector is calculated with a normalization technique in such a way that the sensitivity of the two-point boundary-value problem (TPBVP) to the initial guess is significantly mitigated.File | Dimensione | Formato | |
---|---|---|---|
[2020] Asteroid Hovering Missions from a Fuel-Consumption Viewpoint.pdf
accesso aperto
Descrizione: Versione finale identica a quella editoriale.
Tipologia:
Documento in Post-print
Licenza:
Tutti i diritti riservati (All rights reserved)
Dimensione
5.37 MB
Formato
Adobe PDF
|
5.37 MB | Adobe PDF | Visualizza/Apri |
JGCD_vol43_n7_2020.pdf
solo utenti autorizzati
Descrizione: Versione editoriale.
Tipologia:
Versione finale editoriale
Licenza:
NON PUBBLICO - Accesso privato/ristretto
Dimensione
5.14 MB
Formato
Adobe PDF
|
5.14 MB | Adobe PDF | Visualizza/Apri Richiedi una copia |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.