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Utilisation of the Controllable Inertial Morphing for Providing Spacecraft with Acrobatic Attitude Capabilities.

Trivailo, Pavel M. and Rittweger, Andreas and Theil, Stephan (2020) Utilisation of the Controllable Inertial Morphing for Providing Spacecraft with Acrobatic Attitude Capabilities. In: 21st IFAC World Congress. 21st IFAC World Congress, 12. Jul. - 17. Jul. 2020, Berlin.

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Abstract

The paper is exploring a new method of controlling of the attitude dynamics of the spacecraft with non-zero angular momentum, using deliberately applied changes to the spacecraft inertial properties, called inertial morphing (IM). This method does not employ classical gyroscopic devices, nevertheless it enables the spacecraft to perform various acrobatics manoeuvres, allowing interchanges between stable and unstable states. In one case scenario, it enables transformation of the stable spin into unstable flipping motion and establishment of the desired periods of the flips at various stages of the procedure. Special consideration is given to the selection of the controllable morphed parameters to impose the desired periods and patterns of the acrobatics. This paper exploits use of the unstable flipping motions of the systems and due to established mini-max relationships for the flipping periods, enables selection of the system parameters, maximizing or minimizing the values of the periods for faster (more agile) maneuvers. In the other scenario, IM is used to transfer the regular spin about one body axis into the regular spin about another nominated body axis. Numerous illustration cases are presented and application of the new enhanced capabilities are discussed in detail. For example, paper presents a scenario of the reconfiguration of the articulated spacecraft with its segments being inverted during the acrobatic procedure in the desired way, which may open new possibilities during the spacecraft operation, including re-boost and landing.

Item URL in elib:https://elib.dlr.de/140144/
Document Type:Conference or Workshop Item (Speech)
Title:Utilisation of the Controllable Inertial Morphing for Providing Spacecraft with Acrobatic Attitude Capabilities.
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Trivailo, Pavel M.RMIT University, School of Engineeringhttps://orcid.org/0000-0002-3129-8044
Rittweger, Andreasandreas.rittweger (at) dlr.dehttps://orcid.org/0000-0002-8398-0467
Theil, StephanStephan.Theil (at) dlr.dehttps://orcid.org/0000-0002-5346-8091
Date:July 2020
Journal or Publication Title:21st IFAC World Congress
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Spacecraft, angular momentum, attitude dynamics, inertial morphing, regular spin, tumbling, flipping, period, control, acrobatics
Event Title:21st IFAC World Congress
Event Location:Berlin
Event Type:international Conference
Event Dates:12. Jul. - 17. Jul. 2020
Organizer:International Federation of Automatic Control
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space System Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Space System Technology
DLR - Research theme (Project):Hochpräzise Lageregelung (old)
Location: Bremen
Institutes and Institutions:Institute of Space Systems > Navigation and Control Systems
Institute of Space Systems > Controlling, Logistics
Deposited By: Theil, Dr.-Ing. Stephan
Deposited On:07 Jan 2021 12:51
Last Modified:07 Jan 2021 12:51

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