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Development of a Marslander with crushable shock absorber by virtual and experimental testing

Schröder, Silvio und Reinhardt, Bianca und Brauner, Christian und Gebauer, Ingo und Buchwald, R. (2015) Development of a Marslander with crushable shock absorber by virtual and experimental testing. 66th International Astronautical Congress, 12.-16. Okt. 2015, Jerusalem, Israel.

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Kurzfassung

Since the beginning of space exploration, probes have been sent to other planets or moons with the associated challenge of landing on these bodies. For a soft landing several damping methods like landing legs or airbags have been used. A new and potentially less complex and lighter way to reduce the shock loads at touchdown is the use of a crushable shield underneath the lander platform. This crushable shield could be made for example out of an energy absorbing materials like an aluminum honeycomb core with a High Performance Polyethylene cover sheet. The design is particularly advantageous since no moving parts nor other mechanisms are required, thus making the shield very robust and fail safe. The only mission that is currently planned to use this technique is the ESA-mission “ExoMars” which is planned to start in 2016. The development of such a crushable shock absorber implies and requires assessment of materials, manufacturing processes, the setup of a numerical simulation and the experimental validation in a test lab. In an independent research project (Marslander1) a representative engineering mockup of the landing platform has been build and tested at the Landing & Mobility Test Facility (LAMA) to support the numerical simulation model with experimental data. The simulations are based on the explicit Finite Element Method, which discretizes the structure into a defined number of elements, such that each element is assigned a set of equations describing the material properties and applied loads. The goal is to generate a simplified but still accurate model to predict landing scenarios by running Monte Carlo simulations. Results of the above stated development and testing processes will be presented and discussed in this paper.

elib-URL des Eintrags:https://elib.dlr.de/105089/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:Development of a Marslander with crushable shock absorber by virtual and experimental testing
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Schröder, SilvioDLR Bremen, silvio.schroeder (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Reinhardt, BiancaUniversität BremenNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Brauner, ChristianFaserinstitut BremenNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Gebauer, IngoFibretech composites GmbHNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Buchwald, R.Astrium Space Transportation, Robert.Buchwald (at) astrium.eads.netNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:2015
Referierte Publikation:Nein
Open Access:Ja
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Status:veröffentlicht
Stichwörter:Mars, Lander, landing, shock Absorber, honeycomb, LAMA, testing, numerical Simulation, DLR
Veranstaltungstitel:66th International Astronautical Congress
Veranstaltungsort:Jerusalem, Israel
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:12.-16. Okt. 2015
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 ExoMars (alt), R - Vorhaben Landetechnologien (alt)
Standort: Bremen
Institute & Einrichtungen:Institut für Raumfahrtsysteme > Explorationssysteme
Hinterlegt von: Schröder, Silvio
Hinterlegt am:04 Aug 2016 12:04
Letzte Änderung:31 Jul 2019 20:02

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