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Development and testing of a pyro-driven launcher for harpoon-based comet sample acquisition

Völk, Stefan and Ulamec, Stephan and Biele, Jens and Hecht, Matthias and Lell, Peter and Fleischmann, Josef and Althapp, Sebastian and Grebenstein, Markus and Nuth, Joseph A. and Wegel, Donald C. and Smith, Walter F. and Purves, Lloyd R. and Adams, Douglas S. and Hill, Stuart and Leary, James C. and Weaver, Harold A. and Sandford, Scott A. (2018) Development and testing of a pyro-driven launcher for harpoon-based comet sample acquisition. Acta Astronautica, 152, pp. 218-228. Elsevier. DOI: 10.1016/j.actaastro.2018.07.045 ISSN 0094-5765

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Official URL: http://dx.doi.org/10.1016/j.actaastro.2018.07.045


The CORSAIR (COmet Rendezvous, Sample Acquisition, Investigation, and Return) mission was a proposal for the NASA New Frontiers program. It belongs to the Comet Surface Sample Return mission theme which focuses on acquiring and returning to Earth a macroscopic sample from the surface of a comet nucleus. CORSAIR uses a harpoon-based Sample Acquisition System (SAS) with the spacecraft hovering several meters above the comet surface. This stand-off strategy overcomes disadvantages of other systems such as drills. Since comets are low gravity objects, those techniques would require anchoring before sampling, which is not necessary here. Moreover, the harpoon-based system allows for acquiring several samples from different locations on the comet maximizing the scientific output of the mission. Each SAS assembly consists of a pyro-driven launcher, a Sample Acquisition and Retrieval Projectile (SARP) and a retraction system using a deployable composite boom structure. In order to collect enough cometary material, the launcher has to provide the required kinetic energy to the SARP. Due to high energy densities, pyrotechnically actuated devices ultimately reduce the overall system mass and dimensions. First, the scientific and technological background of the CORSAIR mission is explained. Then, an overview of the development, design and testing of the launcher is given. Finally, the launcher theory is introduced explaining the entire reaction chain: initiation -> gas -> dynamics -> SARP motion.

Item URL in elib:https://elib.dlr.de/124142/
Document Type:Article
Title:Development and testing of a pyro-driven launcher for harpoon-based comet sample acquisition
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Völk, StefanStefan.Voelk (at) dlr.dehttps://orcid.org/0000-0001-9720-6504
Ulamec, StephanStephan.Ulamec (at) dlr.deUNSPECIFIED
Biele, JensJens.Biele (at) dlr.deUNSPECIFIED
Hecht, Matthiasmatthias.hecht (at) dlr.deUNSPECIFIED
Lell, Peterp.lell (at) gmx.deUNSPECIFIED
Fleischmann, Josefjosef.fleischmann (at) eu.panasonic.comUNSPECIFIED
Althapp, Sebastians.althapp (at) tum.deUNSPECIFIED
Grebenstein, MarkusMarkus.Grebenstein (at) dlr.deUNSPECIFIED
Nuth, Joseph A.joseph.a.nuth (at) nasa.govUNSPECIFIED
Wegel, Donald C.donald.c.wegel (at) nasa.govUNSPECIFIED
Smith, Walter F.walter.f.smith (at) nasa.govUNSPECIFIED
Purves, Lloyd R.lloyd.r.purves (at) nasa.govUNSPECIFIED
Adams, Douglas S.douglas.adams (at) jhuapl.eduUNSPECIFIED
Hill, Stuartstuart.hill (at) jhuapl.eduUNSPECIFIED
Leary, James C.james.leary (at) jhuapl.eduUNSPECIFIED
Weaver, Harold A.hal.weaver (at) jhuapl.eduUNSPECIFIED
Sandford, Scott A.NASA Ames Research Center, Mail Stop 245-6, Moffett Field, CA 94035-1000, USAUNSPECIFIED
Date:November 2018
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.2018.07.045
Page Range:pp. 218-228
Keywords:Comet Sample return Sample acquisition New Frontiers Pyrotechnics Internal ballistics
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Technik für Raumfahrtsysteme
DLR - Research theme (Project):R - Vorhaben Corsair
Location: Oberpfaffenhofen
Institutes and Institutions:Space Operations and Astronaut Training > Mobile Rocket Base
Space Operations and Astronaut Training > User center for space experiments (MUSC)
Deposited By: Völk, Dr. Stefan
Deposited On:06 Dec 2018 17:24
Last Modified:06 Dec 2018 17:24

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