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Structure Development of the HP3 Instrument Support System for the Mars Mission InSight

Reershemius, Siebo und Fittock, Mark und Sasaki, Kaname und Scharringhausen, Marco und Spohn, Tilman und Spröwitz, Tom und Wippermann, Torben und Hudson, T.L. (2018) Structure Development of the HP3 Instrument Support System for the Mars Mission InSight. In: Proceedings of the International Astronautical Congress, IAC. 69th International Astronautical Congress, 2018-10-01 - 2018-10-05, Bremen.

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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 of the evolution of terrestrial planets. Beside a number of different scientific instruments onboard the lander there are two instruments that will perform measurements on the Martian ground. One of the instruments is HP3 (Heat Flow and Physical Properties Package), which was developed by the German Aerospace Center (DLR) to measure the heat flow of the Martian outer crust. It uses a hammering mechanism equipped with heating foils on the outer hull to pull a tether approx. 5 m into the soil. The tether is equipped with temperature elements for the determination of 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 qualification 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 and the “Cold Drop and Dig test”, which covers the initial hammering phase of the Mole. 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/127099/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:Structure Development of the HP3 Instrument Support System for the Mars Mission InSight
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Reershemius, SieboSiebo.Reershemius (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Fittock, MarkMark.Fittock (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Sasaki, KanameKaname.Sasaki (at) dlr.dehttps://orcid.org/0000-0003-0365-4539NICHT SPEZIFIZIERT
Scharringhausen, MarcoMarco.Scharringhausen (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Spohn, TilmanTilman.Spohn (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Spröwitz, TomTom.Sproewitz (at) dlr.dehttps://orcid.org/0000-0001-5369-6919NICHT SPEZIFIZIERT
Wippermann, TorbenTorben.Wippermann (at) dlr.dehttps://orcid.org/0000-0002-0354-6557NICHT SPEZIFIZIERT
Hudson, T.L.Jet Propulsion Laboratory, California Institute of Technology, Pasadena, USANICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:3 Oktober 2018
Erschienen in:Proceedings of the International Astronautical Congress, IAC
Referierte Publikation:Nein
Open Access:Nein
Gold Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Nein
Status:veröffentlicht
Stichwörter:InSight, HP3, DLR, JPL, Mole, Support System
Veranstaltungstitel:69th International Astronautical Congress
Veranstaltungsort:Bremen
Veranstaltungsart:internationale Konferenz
Veranstaltungsbeginn:1 Oktober 2018
Veranstaltungsende:5 Oktober 2018
Veranstalter :International Astronautical Federation
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 Raumfahrtsysteme > Transport- und Antriebssysteme
Hinterlegt von: Spröwitz, Tom
Hinterlegt am:09 Apr 2019 10:29
Letzte Änderung:24 Apr 2024 20:30

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