Sensitivity Study on Optimizing Thickness Distribution for a Membrane Reflector
Inflatable membrane reflectors are widely used in space and terrestrial deployable antennas. The mechanical properties of the inflated membrane reflector, however, are often a limiting factor in the level of the surface accuracy that can be achieved. In this study, membrane structural analysis is co...
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | International Journal of Aerospace Engineering |
| Online Access: | http://dx.doi.org/10.1155/2019/3768746 |
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| _version_ | 1850157835039539200 |
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| author | He Huang Fu-ling Guan |
| author_facet | He Huang Fu-ling Guan |
| author_sort | He Huang |
| collection | DOAJ |
| description | Inflatable membrane reflectors are widely used in space and terrestrial deployable antennas. The mechanical properties of the inflated membrane reflector, however, are often a limiting factor in the level of the surface accuracy that can be achieved. In this study, membrane structural analysis is combined with sizing optimization to tailor the thickness of the membrane to improve surface accuracy of an axisymmetric parabolic inflated membrane reflector. Two reflector surface accuracy evaluation methods are employed in the optimizer and researched about their effect on the sensitivity analysis. Gradient-based optimization is employed together with a simplified sensitivity analysis, and the resulting algorithm is demonstrated on a membrane reflector case study. A linear thickness filter is used to avoid checkerboard patterns, and optimized solutions are computationally shown to achieve a feasible level of surface accuracy. |
| format | Article |
| id | doaj-art-6d3a9b88a9ab4e7e8f71dfc94d6c49f2 |
| institution | OA Journals |
| issn | 1687-5966 1687-5974 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Aerospace Engineering |
| spelling | doaj-art-6d3a9b88a9ab4e7e8f71dfc94d6c49f22025-08-20T02:24:03ZengWileyInternational Journal of Aerospace Engineering1687-59661687-59742019-01-01201910.1155/2019/37687463768746Sensitivity Study on Optimizing Thickness Distribution for a Membrane ReflectorHe Huang0Fu-ling Guan1School of Mechanics, Civil Engineering and Architecture, Northwestern Polytechnical University, Xi’an 710072, ChinaCollege of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310058, ChinaInflatable membrane reflectors are widely used in space and terrestrial deployable antennas. The mechanical properties of the inflated membrane reflector, however, are often a limiting factor in the level of the surface accuracy that can be achieved. In this study, membrane structural analysis is combined with sizing optimization to tailor the thickness of the membrane to improve surface accuracy of an axisymmetric parabolic inflated membrane reflector. Two reflector surface accuracy evaluation methods are employed in the optimizer and researched about their effect on the sensitivity analysis. Gradient-based optimization is employed together with a simplified sensitivity analysis, and the resulting algorithm is demonstrated on a membrane reflector case study. A linear thickness filter is used to avoid checkerboard patterns, and optimized solutions are computationally shown to achieve a feasible level of surface accuracy.http://dx.doi.org/10.1155/2019/3768746 |
| spellingShingle | He Huang Fu-ling Guan Sensitivity Study on Optimizing Thickness Distribution for a Membrane Reflector International Journal of Aerospace Engineering |
| title | Sensitivity Study on Optimizing Thickness Distribution for a Membrane Reflector |
| title_full | Sensitivity Study on Optimizing Thickness Distribution for a Membrane Reflector |
| title_fullStr | Sensitivity Study on Optimizing Thickness Distribution for a Membrane Reflector |
| title_full_unstemmed | Sensitivity Study on Optimizing Thickness Distribution for a Membrane Reflector |
| title_short | Sensitivity Study on Optimizing Thickness Distribution for a Membrane Reflector |
| title_sort | sensitivity study on optimizing thickness distribution for a membrane reflector |
| url | http://dx.doi.org/10.1155/2019/3768746 |
| work_keys_str_mv | AT hehuang sensitivitystudyonoptimizingthicknessdistributionforamembranereflector AT fulingguan sensitivitystudyonoptimizingthicknessdistributionforamembranereflector |