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Membrane Spin Up in a Normal Gravity Field: Experiments and Simulations

Delapierre, M. and Pellegrino, S. (2016) Membrane Spin Up in a Normal Gravity Field: Experiments and Simulations. In: 3rd AIAA Spacecraft Structures Conference. AIAA , Reston, VA, Art. No. 2016-1216. ISBN 978-1-62410-394-0.

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Finite element simulations and experimental observations of the spin up in vacuum of a thin membrane loaded by gravity are presented. The numerical techniques take into account the run time of each simulation and energy convergence; it is shown that accurate results can be obtained quite quickly in a rotating reference frame, and that including stiffness-proportional material damping helps convergence of the integration. It is also found that a very fine finite element mesh around the hub of the membrane is required to obtain consistent results. The experimental setup allows spinning of the membrane in a vacuum box; a measurement technique that uses stereo Digital Image Correlation is presented. A comparison between experiments and simulations using characteristic parameters of the shape of a membrane, i.e. the number of rotational symmetric waves, the average deflection, and the elastic bending strain energy of the membrane, shows good agreement between experiments and simulations.

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Pellegrino, S.0000-0001-9373-3278
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Additional Information:© 2016 AIAA. We thank Professor Sigrid Leyendecker and Tristan Schlogl for helpful discussions and advice. Financial support from the Northrop Grumman Corporation is gratefully acknowledged.
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Northrop Grumman CorporationUNSPECIFIED
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AIAA Paper2016-1216
Record Number:CaltechAUTHORS:20160930-131912958
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Official Citation:Melanie Delapierre and Sergio Pellegrino. "Membrane Spin-Up in a Normal Gravity Field: Experiments and Simulations", 3rd AIAA Spacecraft Structures Conference, AIAA SciTech, (AIAA 2016-1216)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:70700
Deposited By: SWORD User
Deposited On:03 Oct 2016 19:18
Last Modified:05 Jan 2017 00:03

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