Acquatella B., Paul (2017) Fast slew maneuvers for the High-Torque-Wheels BIROS spacecraft. 26th International Symposium on Space Flight Dynamics (ISSFD 2017), June 3-9, 2017, Matsuyama-Ehime, Japan. (im Druck)
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Kurzfassung
The satellite platform BIROS (Bi-spectral InfraRed Optical System) is the second technology demonstrator of the DLR R&D `FireBIRD' space mission aiming to provide infrared remote sensing for early fire detection. Among several mission goals and scientific experiments, to demonstrate a high-agility attitude control system, the platform is actuated with an extra array of three orthogonal `High-Torque-Wheels' (HTW). For agile reorientation, however, a challenge arises from the fact that time-optimal slew maneuvers are in general not of the Euler-axis rotation type, specially whenever the actuators are constrained independently. Moreover, BIROS' On-Board-Computer (OBC) can only accommodate rotational acceleration commands twice per second. Our objective is therefore to find a methodology to design fast slew maneuvers while considering a highly dynamic plant commanded by piecewise-constant sampled-time control inputs. We do this by considering a comprehensive analytical nonlinear model for spacecraft equipped with reaction wheels and transcribing a time-optimal control problem formulation into a multi-criteria optimization problem which is then solved with a direct approach in a sequential procedure using the trajectory optimization package `trajOpt' of DLR-SR's optimization tool MOPS `Multi-Objective Parameter Synthesis'. Our approach for efficient design of rest-to-rest fast slew maneuvers considers an attitude error whose magnitude is proportional to Euler-axis rotations between current and desired attitudes even for large initial attitude errors. Results based on numerical simulations are presented to illustrate our method.
elib-URL des Eintrags: | https://elib.dlr.de/114175/ | ||||||||
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Dokumentart: | Konferenzbeitrag (Vorlesung) | ||||||||
Titel: | Fast slew maneuvers for the High-Torque-Wheels BIROS spacecraft | ||||||||
Autoren: |
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Datum: | Juni 2017 | ||||||||
Referierte Publikation: | Ja | ||||||||
Open Access: | Nein | ||||||||
Gold Open Access: | Nein | ||||||||
In SCOPUS: | Nein | ||||||||
In ISI Web of Science: | Nein | ||||||||
Status: | im Druck | ||||||||
Stichwörter: | Attitude control system, slew maneuver optimization, time-optimal control, sampled-time control systems | ||||||||
Veranstaltungstitel: | 26th International Symposium on Space Flight Dynamics (ISSFD 2017) | ||||||||
Veranstaltungsort: | Matsuyama-Ehime, Japan | ||||||||
Veranstaltungsart: | internationale Konferenz | ||||||||
Veranstaltungsdatum: | June 3-9, 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 - Projekt High-Torque-Wheels (alt) | ||||||||
Standort: | Oberpfaffenhofen | ||||||||
Institute & Einrichtungen: | Institut für Systemdynamik und Regelungstechnik > Raumfahrt-Systemdynamik | ||||||||
Hinterlegt von: | Acquatella B., Paul | ||||||||
Hinterlegt am: | 25 Sep 2017 16:53 | ||||||||
Letzte Änderung: | 25 Sep 2017 16:53 |
Verfügbare Versionen dieses Eintrags
- Fast slew maneuvers for the High-Torque-Wheels BIROS spacecraft. (deposited 25 Sep 2017 16:53) [Gegenwärtig angezeigt]
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