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

Schröder, Silvio and Reinhardt, Bianca and Brauner, Christian and Gebauer, Ingo and Buchwald, R. (2017) Development of a Marslander with crushable shock absorber by virtual and experimental testing. Acta Astronautica, 134, pp. 65-74. Elsevier. DOI: 10.1016/j.actaastro.2017.01.023 ISBN 0094-5765 ISSN 0094-5765

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Official URL: https://authors.elsevier.com/a/1UW4jLWHFg9bB


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 has used this technique is the ESA/Roscosmos-mission “ExoMars” which started 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 (Marslander) a representative engineering mockup of the landing platform has been built and tested at the Landing & Mobility Test Facility (LAMA) to support the numerical simulation model with experimental data. This paper is focusing on the hardware tests. Results of the above stated development and testing processes will be presented and discussed.

Item URL in elib:https://elib.dlr.de/111557/
Document Type:Article
Title:Development of a Marslander with crushable shock absorber by virtual and experimental testing
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Schröder, SilvioSilvio.Schroeder (at) dlr.deUNSPECIFIED
Reinhardt, Biancauniversität bremenUNSPECIFIED
Brauner, Christianfaserinstitut bremenUNSPECIFIED
Gebauer, Ingofibretech composites gmbhUNSPECIFIED
Buchwald, R.astrium space transportation, robert.buchwald (at) astrium.eads.netUNSPECIFIED
Date:19 January 2017
Journal or Publication Title:Acta Astronautica
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1016/j.actaastro.2017.01.023
Page Range:pp. 65-74
Chern, Rock Jeng-ShingRyerson University, Toronto, Ontario, Canada
Keywords:Mars, Lander, landing, shock Absorber, honeycomb, LAMA, testing, numerical Simulation, DLR
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Science and Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Erforschung des Weltraums
DLR - Research theme (Project):R - Explorationsstudien, R - Vorhaben Landetechnologien
Location: Bremen
Institutes and Institutions:Institute of Space Systems > Land and Exploration Technology
Deposited By: Schröder, Silvio
Deposited On:21 Mar 2017 13:00
Last Modified:23 Aug 2017 13:05

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