Assessing the Thermo-Mechanical Behaviour of the CORE Hinge

for the Deployable Space Telescope

Master thesis (2020)

Authors

T.R. Gritter Aerospace Engineering

Contributors

J. Bouwmeester Space Systems Egineering (supervisor 1)
J.M. Kuiper Space Systems Egineering (supervisor 2)
M.C. Naeije Astrodynamics & Space Missions - Aerospace Engineering (supervisor 2)
Faculty
Aerospace Engineering
Copyright: © 2020 Thijs Gritter
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Published Date

05-11-2020

Language

English

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Faculty

Aerospace Engineering

Abstract

The Deployable Space Telescope (DST) is a telescope that uses foldable optical elements to reach state-of-the-art ground resolutions while minimising the launch volume and total mass of the system. One of the promising concepts that is part of the DST design is the Compliant Rolling-Element (CORE) Hinge. This hinge uses compliant links to let two semi-circular cams roll over each other with minimal friction. For this thesis, a thermo-mechanical analysis is conducted of the DST CORE hinges to determine whether the current design complies with the stability and in-orbit drift requirements of the DST. From this analysis, it can be concluded that this is currently not the case, but that a simple solution is at hand. By elongating the baffle of the DST, which protects the DST from solar irradiation, more solar radiation is blocked and the stability and in-orbit drift are kept within limits.