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Deployment Dynamics of Thin-Shell Space Structures

Pedivellano, Antonio and Pellegrino, Sergio (2022) Deployment Dynamics of Thin-Shell Space Structures. Journal of Spacecraft and Rockets, 59 (4). pp. 1214-1227. ISSN 0022-4650. doi:10.2514/1.a35172.

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This study was motivated by the desire to develop accurate simulation models for the deployment dynamics of future, ultralight deployable structures consisting of multiple thin shells packaged elastically, through a combination of folding and coiling. The specific problem studied is the packaging and unconstrained deployment of a rectangular space frame formed by two thin-shell longerons connected by multiple transverse rods, and called a strip. The study included experiments on high-quality test articles, using a suspension system with low inertia and friction. The elastic folds in the strips were tracked with high-speed three-dimensional digital image correlation for deployment in both air and near-vacuum. The study also developed a high-fidelity finite element model of the strips that captures the elastic, localized deformation that occurs during the initial folding, the self-contact between different parts of the structure as the folding develops, and the strain energy stored during the folding process. This model accurately captured the deployment dynamics and self-latching of the strips, as well as the effects of air on deployment.

Item Type:Article
Related URLs:
URLURL TypeDescription ItemConference Paper
Pedivellano, Antonio0000-0003-2321-7301
Pellegrino, Sergio0000-0001-9373-3278
Alternate Title:Deployment Dynamics of Foldable Thin Shell Space Structures
Additional Information:© 2022 by Antonio Pedivellano and Sergio Pellegrino. Published by the American Institute of Aeronautics and Astronautics, Inc., with permission. Presented as Paper 2021-0299 at the AIAA SciTech 2021 Forum, Virtual Event, January 11–20, 2021; received 19 May 2021; revision received 18 December 2021; accepted for publication 19 December 2021; published online 31 January 2022. The authors thank Xiaowei Deng (University of Hong Kong) for providing the Abaqus/Explicit implementation of the Iterative Material Model membrane formulation, Alan Truong (Caltech) for building the strip prototypes, and Fabien Royer (Caltech) for help with the bending tests. Financial support from the Space Solar Power Project at Caltech is gratefully acknowledged.
Group:GALCIT, Space Solar Power Project
Funding AgencyGrant Number
Space Solar Power ProjectUNSPECIFIED
Issue or Number:4
Record Number:CaltechAUTHORS:20220204-680152000
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Official Citation:Deployment Dynamics of Thin-Shell Space Structures Antonio Pedivellano and Sergio Pellegrino Journal of Spacecraft and Rockets 2022 59:4, 1214-1227; DOI: 10.2514/1.a35172
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:113293
Deposited By: George Porter
Deposited On:07 Feb 2022 21:51
Last Modified:02 Aug 2022 17:56

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