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21 November 2017 A tape-spring hexapod for deployable telescopes: dynamics
L. Blanchard, G. Aridon, F. Falzon, D. Rémond, R. Dufour
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Proceedings Volume 10567, International Conference on Space Optics — ICSO 2006; 1056718 (2017) https://doi.org/10.1117/12.2308172
Event: International Conference on Space Optics 2006, 2006, Noordwijk, Netherlands
Abstract
An hexapod based telescope concept whose legs are deployable has been investigated in order to stow the secondary mirror during launch and to self-deploy it in orbit The main advantages of this concept are: a reduced volume for launch with high reduction of passive stability requirements, mass and inertia reduction inducing an agility gain. The positioning errors are corrected thanks to the vertical displacement of the hexapod feet and the final optical performance is reached thanks to adaptive optics. The paper presents the first steps towards the optimal design of a breadboard and the method developed to model the dynamic behaviour of such a structure with highly deformed flexible elements and validated with the results of sine vibration testing of the hexapod. The following part deals with the evaluation of its deployment and correction capabilities.
© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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L. Blanchard, G. Aridon, F. Falzon, D. Rémond, and R. Dufour "A tape-spring hexapod for deployable telescopes: dynamics", Proc. SPIE 10567, International Conference on Space Optics — ICSO 2006, 1056718 (21 November 2017); https://doi.org/10.1117/12.2308172
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KEYWORDS
Space telescopes
Modeling
Telescopes
Actuators
Adaptive optics
Mirrors
Finite element methods
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