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Reduced-Order Modeling for Flexible Spacecraft Deployment and Dynamics

Marshall, Michael and Pellegrino, Sergio (2021) Reduced-Order Modeling for Flexible Spacecraft Deployment and Dynamics. In: AIAA Scitech 2021 Forum. American Institute of Aeronautics and Astronautics , Reston, VA, Art. No. 2021-1385. ISBN 9781624106095.

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The present work investigates reduced-order modeling for ultralight, packageable, and self-deployable spacecraft where reduced-order models (ROMs) are required to simulate deployment, structural dynamics during spacecraft maneuvers, and for real-time applications in trajectory optimization and control. In these contexts, ultralight, flexible spacecraft dynamics are characterized by geometrically nonlinear structural deformations combined with large rigid body motions. An approach based on proper orthogonal decomposition (POD), energy-conserving sampling and weighting (ECSW), and a floating frame of reference (FFR) is proposed to construct accurate and efficient ROMs. The proposed approach is then tested on a benchmark problem that involves geometrically nonlinear deformations, large rigid body motions, and strain energy release during dynamic snap-back, the last of which is analogous to the energy release during deployment. The resulting ROM for this benchmark problem is approximately 20% the size of the original full-order model with no appreciable loss of accuracy.

Item Type:Book Section
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URLURL TypeDescription
Pellegrino, Sergio0000-0001-9373-3278
Additional Information:© 2021 by Michael A. Marshall and Sergio Pellegrino. Published by the American Institute of Aeronautics and Astronautics, Inc., with permission. M. A. Marshall was supported by a NASA Space Technology Research Fellowship. Financial support from the California Institute of Technology (Caltech) Space Solar Power Project is also gratefully acknowledged. The authors thank W. Keats Wilkie and F. Gianfranco Canales Escobedo for the many helpful discussions.
Group:GALCIT, Space Solar Power Project
Funding AgencyGrant Number
NASA Space Technology Research FellowshipUNSPECIFIED
Space Solar Power ProjectUNSPECIFIED
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Other Numbering System NameOther Numbering System ID
AIAA Paper2021-1385
Record Number:CaltechAUTHORS:20210112-105611714
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Official Citation: Reduced-Order Modeling for Flexible Spacecraft Deployment and Dynamics. Michael Marshall and Sergio Pellegrino. AIAA Scitech 2021 Forum. January 2021; DOI: 10.2514/6.2021-1385
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:107429
Deposited By: George Porter
Deposited On:12 Jan 2021 19:42
Last Modified:16 Nov 2021 19:02

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