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Additive manufacturing of radiation shielding for small satellites

Hümbert, Simon and Meth, Jonas and Echsel, Markus and Lengowski, Michael and Stäbler, Tina (2021) Additive manufacturing of radiation shielding for small satellites. In: Additive manufacturing of radiation shielding for small satellites. 72nd International Astronautical Congress (IAC), 25.-29. Okt. 2021, Dubai.

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Abstract

An increasing demand on reliability in the automotive industry, driven by the development of autonomous driving, has led to a high availability of inexpensive electronics with high potential for space applications. Several of these applications have already been proposed within the NewSpace trend. However, the high-radiation environment inherent to space operations lies outside the automotive hardware development scope and is therefore often the show-stopper for using such electronics for space applications. This work examines the possibility of designing and manufacturing weight- and cost-efficient radiation shielding using additive manufacturing. A printable shielding material, composed of tungsten powder embedded in the high-performance thermoplastic polyether-ether-ketone (PEEK), was developed and used to design a multi-material, multifunctional sandwich structure for local shielding of a representative automotive MEMS sensor. Radiation simulation was used to find the most efficient geometry and distribution of the shielding material. Additionally, the simulation has shown the required amount of shielding material to keep the total ionising dose below the previously tested limits of the sensor. The local shielding realised by additive manufacturing allows a minimal use of tungsten and thereby weight benefits compared to traditional shielding in aluminium boxes. The design will be demonstrated on the University of Stuttgart CubeSat mission, SOURCE, by comparing a shielded and unshielded area of the sandwich. The demonstrated shielding concept can easily be transferred to other hardware and missions and can thereby reduce both weight and cost of future spacecrafts.

Item URL in elib:https://elib.dlr.de/146958/
Document Type:Conference or Workshop Item (Speech)
Title:Additive manufacturing of radiation shielding for small satellites
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Hümbert, Simonsimon.huembert (at) dlr.dehttps://orcid.org/0000-0003-1476-8427
Meth, JonasUNSPECIFIEDUNSPECIFIED
Echsel, MarkusFraunhofer IPAUNSPECIFIED
Lengowski, MichaelIRS Universität StuttgartUNSPECIFIED
Stäbler, TinaTina.Staebler (at) dlr.deUNSPECIFIED
Date:October 2021
Journal or Publication Title:Additive manufacturing of radiation shielding for small satellites
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Additive Manufacturing, Radiation Shielding, PEEK ,Tungsten, COTS, Sattelite Structures, IRAS
Event Title:72nd International Astronautical Congress (IAC)
Event Location:Dubai
Event Type:international Conference
Event Dates:25.-29. Okt. 2021
Organizer:IAF
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space System Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Space System Technology
DLR - Research theme (Project):R - Basic Technologies [SY]
Location: Stuttgart
Institutes and Institutions:Institute of Structures and Design > Design and Manufacture Technologies
Institute of Structures and Design > Space System Integration
Deposited By: Hümbert, Simon
Deposited On:09 Dec 2021 10:53
Last Modified:09 Dec 2021 10:53

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