Authors
Junjie Li, Xihan Li, Chong Zhao, Boqi Kang, Yutong Wang, Letian Wang, Dong Guo, Haifeng Zhao, Ke Wang
Published in
iScience. Volume 28. Issue 9. Pages 113390. Sep 19, 2025. Epub Aug 18, 2025.
Abstract
For cosmic-dust experiments on the space station, this paper proposes a one-degree-of-freedom repeatedly deployable exposure platform supporting multiple panels. A 4-panel module forms the basic unit and, through a modular library, scales to any panel count with a folding ratio of 14.09 : (1) a uniform acceleration-deceleration driving strategy at the control end or motor is proposed. Kinematic models define the motion space for arbitrary panel numbers. Lagrange dynamics models predict torque demand versus panel number and deployment period. For the 4-panel case, the two strategies need 0.0777 N m and 0.0972 N m at 40 s; with a 1 N m target the minimum periods shorten to 14.05 s and 12.63 s. A 4-panel prototype verified smooth, synchronized deploy-retract. Positioning tests showed absolute accuracies better than 5.42 ± 0.60 mm and repeatability finer than 46 ± 2 μm on all axes, providing a validated basis for future space exposure platforms.
PMID:
40970200
Bibliographic data and abstract were imported from PubMed on 19 Sep 2025.
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