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HP3 Instrument Support System Structure development for the NASA/JPL Mars Mission InSight

Spröwitz, Tom und Reershemius, Siebo und Wippermann, Torben und Spohn, Tilman und Hudson, T.L. und Sasaki, Kaname und Fittock, Mark und Scharringhausen, Marco (2019) HP3 Instrument Support System Structure development for the NASA/JPL Mars Mission InSight. In: IEEE Aerospace Conference Proceedings. IEEE Aerospace Conference, 2019-03-03 - 2019-03-08, Big Sky, USA. doi: 10.1109/AERO.2019.8742104.

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Kurzfassung

On May 05, 2018 NASA JPL launched its mission to Mars called “InSight”. Main objective of this mission is to gain more knowledge about the evolution of terrestrial planets and to more precisely determine properties of core, mantle and crust of Mars. One of a number of different scientific instruments onboard the lander there will be HP3 (Heat Flow and Physical Properties Package), which was developed by the German Aerospace Center (DLR). It will be operated on Martian ground to measure the heat flow through the Martian outer crust. It uses a hammering mechanism which will pull a tether approx. 5 m into the soil. The hammering device is equipped with foil heaters on the outer hull and the tether is equipped with temperature elements. Both is needed for the determination of the thermal conductivity of the surrounding regolith and the measurement of the temperature gradients in the ground. There is the need of a separate system to be able to perform those activities on the surface. This system is called the “HP3 Support System”. Its main task is to ensure a stable, nearly perpendicular position of the hammering mechanism relative to the soil on the Martian surface before initial penetration. It furthermore houses the instruments for length measurement and serves as electrical connection to the lander. The paper will give an overview of the development and the qualification of the structure of the Support System. It will focus on the mechanical design, the analysis of the structural dynamics but in particular on the testing which includes standard environmental testing but also numerous development tests that are very mission specific. The mechanical design of the Support System is mainly driven by a unique set of requirements derived from the working environment on Mars, the deployment from the lander deck and the mechanically separated operation on the surface. The instrument design will be explained to show, which design elements were implemented to ensure proper functionality. Various development tests had to be performed during the Support System structure development. Besides the standard qualification tests, special tests were developed to show compliance of the instrument design to the requirements. Such tests are: Separation Tests from the lander deck in cold environment under various tilt angles, Tether Deployment Tests, under various temperatures, foldings and routings, Feet Sliding Resistance Tests on sand with different slopes. The paper will give an overview on all tests necessary for the support system qualification and will describe test setups and the results.

elib-URL des Eintrags:https://elib.dlr.de/126842/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:HP3 Instrument Support System Structure development for the NASA/JPL Mars Mission InSight
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Spröwitz, TomTom.Sproewitz (at) dlr.dehttps://orcid.org/0000-0001-5369-6919NICHT SPEZIFIZIERT
Reershemius, SieboSiebo.Reershemius (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Wippermann, TorbenTorben.Wippermann (at) dlr.dehttps://orcid.org/0000-0002-0354-6557NICHT SPEZIFIZIERT
Spohn, TilmanTilman.Spohn (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Hudson, T.L.Jet Propulsion Laboratory, California Institute of Technology, Pasadena, USANICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Sasaki, KanameKaname.Sasaki (at) dlr.dehttps://orcid.org/0000-0003-0365-4539NICHT SPEZIFIZIERT
Fittock, MarkMark.Fittock (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Scharringhausen, Marcomarco.scharringhausen (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:März 2019
Erschienen in:IEEE Aerospace Conference Proceedings
Referierte Publikation:Ja
Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Nein
DOI:10.1109/AERO.2019.8742104
Status:veröffentlicht
Stichwörter:InSight, Mars, heat flow, physical properties package, Support System, development testing, environmental testing
Veranstaltungstitel:IEEE Aerospace Conference
Veranstaltungsort:Big Sky, USA
Veranstaltungsart:internationale Konferenz
Veranstaltungsbeginn:3 März 2019
Veranstaltungsende:8 März 2019
Veranstalter :AIAA
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Raumfahrt
HGF - Programmthema:Erforschung des Weltraums
DLR - Schwerpunkt:Raumfahrt
DLR - Forschungsgebiet:R EW - Erforschung des Weltraums
DLR - Teilgebiet (Projekt, Vorhaben):R - Projekt InSight - HP3
Standort: Bremen
Institute & Einrichtungen:Institut für Raumfahrtsysteme > Mechanik und Thermalsysteme
Institut für Raumfahrtsysteme > Land und Explorationstechnologie
Institut für Planetenforschung
Hinterlegt von: Spröwitz, Tom
Hinterlegt am:20 Mär 2019 12:39
Letzte Änderung:24 Apr 2024 20:30

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