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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. (2017) Development and testing of a pyro-driven launcher for harpoon-based comet sample acquisition. 68th International Astronautical Congress (IAC), 25.-29. Sep. 2017, Adelaide, Australia.

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Abstract

The CORSAIR (COmet Rendezvous, Sample Acquisition, Investigation, and Return) mission is a proposal for the fourth 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 systems using drills or shovels. Since comets are low gravity objects, these 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 scientifc 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. Here, an overview of the development, design and testing of the launcher is given. Furthermore, the launcher theory is introduced explaining the entire reaction chain: initiation -> gas dynamics -> SARP motion.

Item URL in elib:https://elib.dlr.de/115988/
Document Type:Conference or Workshop Item (Speech)
Title:Development and testing of a pyro-driven launcher for harpoon-based comet sample acquisition
Authors:
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.scott.a.sandford (at) nasa.govUNSPECIFIED
Date:29 September 2017
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:comet, sample return, sample acquisition, New Frontiers, pyrotechnics, internal ballistics
Event Title:68th International Astronautical Congress (IAC)
Event Location:Adelaide, Australia
Event Type:international Conference
Event Dates:25.-29. Sep. 2017
Organizer:International Astronautical Federation (IAF)
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
Deposited By: Völk, Dr. Stefan
Deposited On:24 Nov 2017 14:52
Last Modified:31 Jul 2019 20:13

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