Berlin, M. and Goossens, Nils and Oelze, Holger W. and Braxmaier, Claus (2021) Launch lock system for reaction wheels. CEAS Space Journal. Springer. doi: 10.1007/s12567-021-00353-9. ISSN 1868-2502.
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Abstract
Launch loads are critical forces to the payload. Many structures are not designed to survive these loads, thus, additional systems which absorb them are required. These launch lock mechanisms are available in different varieties. For a future magnetic bearing reaction wheel, two different principles of launch lock mechanism concepts were developed and tested. The first one is based on a spring mechanism, while the second uses electromagnetism to move the locking pins. A first testing with prototypes of both was conducted to evaluate the functionality. Subsequently improvements regarding reducing the mass and construction volume were incorporated in the design. In the course of this, additive manufacturing with PLA filament has been used to study possible applications for these mechanisms. The spring concept resulted to be more reliable than the electromagnetic one, but requires a damping mechanism. A usage of additive manufactured PLA components is a promising possibility for the production.
Item URL in elib: | https://elib.dlr.de/141092/ | ||||||||||||||||||||
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Document Type: | Article | ||||||||||||||||||||
Title: | Launch lock system for reaction wheels | ||||||||||||||||||||
Authors: |
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Date: | 18 February 2021 | ||||||||||||||||||||
Journal or Publication Title: | CEAS Space Journal | ||||||||||||||||||||
Refereed publication: | Yes | ||||||||||||||||||||
Open Access: | Yes | ||||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||||
In SCOPUS: | Yes | ||||||||||||||||||||
In ISI Web of Science: | Yes | ||||||||||||||||||||
DOI: | 10.1007/s12567-021-00353-9 | ||||||||||||||||||||
Publisher: | Springer | ||||||||||||||||||||
ISSN: | 1868-2502 | ||||||||||||||||||||
Status: | Published | ||||||||||||||||||||
Keywords: | Additive manufacturing Reaction wheels Launch loads Launch lock Shape memory alloy Bimetal | ||||||||||||||||||||
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 - Systemtechnologien (old) | ||||||||||||||||||||
Location: | Bremen | ||||||||||||||||||||
Institutes and Institutions: | Institute of Space Systems > Systems Enabling Technologies Institute of Quantum Technologies > Quantum Metrology | ||||||||||||||||||||
Deposited By: | Hamann, Ines | ||||||||||||||||||||
Deposited On: | 04 Mar 2021 10:43 | ||||||||||||||||||||
Last Modified: | 06 Mar 2021 17:15 |
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