Deng, X. and Pellegrino, S. (2008) Computation of Partially Inflated Shapes of Stratospheric Balloon Structures. In: 49th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 16th AIAA/ASME/AHS Adaptive Structures Conference, 10th AIAA Non-Deterministic Approaches Conference, 9th AIAA Gossamer Spacecraft Forum. American Institute of Aeronautics and Astronautics , Reston, VA, Art. No. 2008-2133. ISBN 978-1-60086-993-8. https://resolver.caltech.edu/CaltechAUTHORS:20200330-082659500
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Abstract
This paper studies the relationship between height, volume and stress distribution in a superpressure pumpkin balloon with the differential pressure applied to the balloon. Two different approaches are presented. A simple two-dimensional solution based on previous work and a novel, detailed finite element simulation that provides three-dimensional solutions are investigated. It is found that the finite element solution provides a much better agreement with experimental results for the case of a flat facet ULDB balloon. It is also found that a region of tensile hoop stress remains in the crown region of the balloon until the bottom pressure becomes negative. This region prevents the formation of clefts in the balloon and keeps its shape axisymmetric.
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| Additional Information: | © 2008 by X. Deng and S. Pellegrino. Published by the American Institute of Aeronautics and Astronautics, Inc., with permission. We thank the NASA ULDB team for their contribution to this research. In particular, we are grateful to Henry Cathey for kindly providing test data and Rodger Farley, Jim Rand and David Wakefield for helping us through numerous discussions This research was supported by the NASA Balloon Program Office (contract monitor Danny Ball). | ||||||
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| DOI: | 10.2514/6.2008-2133 | ||||||
| Record Number: | CaltechAUTHORS:20200330-082659500 | ||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20200330-082659500 | ||||||
| Official Citation: | Computation of Partially Inflated Shapes of Stratospheric Balloon Structures. Xiaowei Deng and Sergio Pellegrino. 49th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 16th AIAA/ASME/AHS Adaptive Structures Conference,10th AIAA Non-Deterministic Approaches Conference, 9th AIAA Gossamer Spacecraft Forum, 4th AIAA Multidisciplinary Design Optimization Specialists Conference. April 2008; doi: 10.2514/6.2008-2133 | ||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||
| ID Code: | 102166 | ||||||
| Collection: | CaltechAUTHORS | ||||||
| Deposited By: | Tony Diaz | ||||||
| Deposited On: | 30 Mar 2020 15:40 | ||||||
| Last Modified: | 16 Nov 2021 18:09 |
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