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Development of a Workflow Implementation to Conduct Automated Thermal Analyses of Spacecraft from an MBSE System Model

Heibrok, Henning Folke und Donner, Anton und Edelhäuser, Moritz und Franz, Tobias (2022) Development of a Workflow Implementation to Conduct Automated Thermal Analyses of Spacecraft from an MBSE System Model. In: 73rd International Astronautical Congress, IAC 2022. 73rd International Astronautical Congress (IAC), 2022-09-18 - 2022-09-22, Paris, France. ISSN 0074-1795.

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Kurzfassung

Model-based systems engineering (MBSE) is an emerging methodology not only in the field of spacecraft systems engineering. The key objective is to store the whole system design in one single source of truth system model. The continuously maintained and customizable open-source MBSE tool Virtual Satellite developed by the German Aerospace Center (DLR) offers a framework for storing such a system model. Since the open-source 3D computer aided design (CAD) software FreeCAD has a dedicated Virtual Satellite workbench for importing the 3D model file generated by Virtual Satellite, it is possible to export the 3D model from Virtual Satellite, apply changes to it in FreeCAD, and afterwards reimport it in Virtual Satellite. This paper presents a workflow implementation to conduct automated steady-state and transient thermal analyses using the Virtual Satellite system model as a basis, utilizing the aforementioned features. Part of this effort was to extend Virtual Satellite by thermal modeling capabilities, such as material parameters, surface characteristics, thermal interfaces, boundary conditions and further relevant aspects. With custom Java applications, so-called "Apps", all aspects of the system model relevant for a thermal analysis are exported from Virtual Satellite and written to accordingly generated text files. Moreover, the before described 3D model export is used to export the model to FreeCAD. The FreeCAD Python console, in combination with the finite element method (FEM) workbench, is used to create a script that executes meshing, application of the boundary and initial conditions, as well as identification of contacts between parts and application of the specified contact conductance values. The obtained files form a complete thermal model and can be fed directly into the open-source FEM software CalculiX for executing the thermal analysis. Then, the result can be processed by an additional Virtual Satellite App. To account for the space thermal environment an additional feature was added to the FreeCAD script. The feature uses orbit information obtained from external mission analysis tools (e.g., Satellite Tool Kit, STK) to calculate the approximate combined heat load from Sun, Earth infrared, and albedo radiation at each time point in the specified simulation time interval. This new workflow allows to execute quick thermal analyses at an early design stage and therefore opens new opportunities in the evaluation of different system designs, as early as in a concurrent engineering study. Configuration parameters are provided that also allow more sophisticated analyses in later development phases, such as custom mesh definition and local mesh refinement.

elib-URL des Eintrags:https://elib.dlr.de/189275/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:Development of a Workflow Implementation to Conduct Automated Thermal Analyses of Spacecraft from an MBSE System Model
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Heibrok, Henning FolkeHenning.Heibrok (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Donner, AntonAnton.Donner (at) dlr.dehttps://orcid.org/0000-0002-4458-7929NICHT SPEZIFIZIERT
Edelhäuser, MoritzMoritz.Edelhaeuser (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Franz, TobiasTobias.Franz (at) dlr.dehttps://orcid.org/0000-0003-1412-9625NICHT SPEZIFIZIERT
Datum:September 2022
Erschienen in:73rd International Astronautical Congress, IAC 2022
Referierte Publikation:Nein
Open Access:Nein
Gold Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Nein
ISSN:0074-1795
Status:veröffentlicht
Stichwörter:MBSE; Virtual Satellite; Thermal; Analysis; Simulation; Workflow; Model Based Systems Engineering; System; Model; Systems Engineering;
Veranstaltungstitel:73rd International Astronautical Congress (IAC)
Veranstaltungsort:Paris, France
Veranstaltungsart:internationale Konferenz
Veranstaltungsbeginn:18 September 2022
Veranstaltungsende:22 September 2022
Veranstalter :International Astronautical Federation (IAF)
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Raumfahrt
HGF - Programmthema:Kommunikation, Navigation, Quantentechnologien
DLR - Schwerpunkt:Raumfahrt
DLR - Forschungsgebiet:R KNQ - Kommunikation, Navigation, Quantentechnologie
DLR - Teilgebiet (Projekt, Vorhaben):R - Galileo Evolution
Standort: Braunschweig , Oberpfaffenhofen
Institute & Einrichtungen:Galileo Kompetenzzentrum > Systemanalyse und Evolution
Galileo Kompetenzzentrum > Technologietransfer und Implementierung
Institut für Softwaretechnologie > Software für Raumfahrtsysteme und interaktive Visualisierung
Hinterlegt von: Heibrok, Henning Folke
Hinterlegt am:18 Dez 2023 13:14
Letzte Änderung:24 Apr 2024 20:50

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