Increasing Structural Performance of Space Telescope Mirrors through Simultaneous Shape and Size Optimization
In this paper, a numeric optimization approach for designing space telescope mirrors will be presented. It is fundamental to space telescopes that each element—including their mirrors—are as lightweight as possible. Moreover, the performance of space telescopes is driven by how strongly these mirror...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-10-01
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| Series: | Aerospace |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2226-4310/9/11/646 |
| _version_ | 1797469527493050368 |
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| author | Marcel Warzecha Markus E. Schatz Stefano Lucarelli Cedric Jüttner |
| author_facet | Marcel Warzecha Markus E. Schatz Stefano Lucarelli Cedric Jüttner |
| author_sort | Marcel Warzecha |
| collection | DOAJ |
| description | In this paper, a numeric optimization approach for designing space telescope mirrors will be presented. It is fundamental to space telescopes that each element—including their mirrors—are as lightweight as possible. Moreover, the performance of space telescopes is driven by how strongly these mirrors are distorted upon removal of gravitational load. These distortions result in a deterioration in the optical performance, which is also known as the wavefront error. This error can best be described via Zernike polynomials. To increase the optical performance, along with making the mirror lightweight, the overall root mean square (RMS) of the deformation is used as the optimization objective. An approach utilizing size and shape variables is used to define the feasible design space for the optimization. Lastly, general findings will be discussed, as well as numerical advantages of deploying structural optimization (e.g., robustness evaluation). |
| first_indexed | 2024-03-09T19:21:42Z |
| format | Article |
| id | doaj.art-21488784fb424d90b437182df22ffbdc |
| institution | Directory Open Access Journal |
| issn | 2226-4310 |
| language | English |
| last_indexed | 2024-03-09T19:21:42Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Aerospace |
| spelling | doaj.art-21488784fb424d90b437182df22ffbdc2023-11-24T03:15:07ZengMDPI AGAerospace2226-43102022-10-0191164610.3390/aerospace9110646Increasing Structural Performance of Space Telescope Mirrors through Simultaneous Shape and Size OptimizationMarcel Warzecha0Markus E. Schatz1Stefano Lucarelli2Cedric Jüttner3TU Munich, 80333 München, GermanyDHBW Ravensburg, 70174 Stuttgart, GermanyAIRBUS Defence & Space GmbH, 82024 Taufkirchen, GermanyAltair Engineering GmbH, Calwer Str. 7, 71034 Böblingen, GermanyIn this paper, a numeric optimization approach for designing space telescope mirrors will be presented. It is fundamental to space telescopes that each element—including their mirrors—are as lightweight as possible. Moreover, the performance of space telescopes is driven by how strongly these mirrors are distorted upon removal of gravitational load. These distortions result in a deterioration in the optical performance, which is also known as the wavefront error. This error can best be described via Zernike polynomials. To increase the optical performance, along with making the mirror lightweight, the overall root mean square (RMS) of the deformation is used as the optimization objective. An approach utilizing size and shape variables is used to define the feasible design space for the optimization. Lastly, general findings will be discussed, as well as numerical advantages of deploying structural optimization (e.g., robustness evaluation).https://www.mdpi.com/2226-4310/9/11/646telescope mirrorsstructural optimizationsize and shape design variableswavefront errorgravity releaseZernike polynomials |
| spellingShingle | Marcel Warzecha Markus E. Schatz Stefano Lucarelli Cedric Jüttner Increasing Structural Performance of Space Telescope Mirrors through Simultaneous Shape and Size Optimization Aerospace telescope mirrors structural optimization size and shape design variables wavefront error gravity release Zernike polynomials |
| title | Increasing Structural Performance of Space Telescope Mirrors through Simultaneous Shape and Size Optimization |
| title_full | Increasing Structural Performance of Space Telescope Mirrors through Simultaneous Shape and Size Optimization |
| title_fullStr | Increasing Structural Performance of Space Telescope Mirrors through Simultaneous Shape and Size Optimization |
| title_full_unstemmed | Increasing Structural Performance of Space Telescope Mirrors through Simultaneous Shape and Size Optimization |
| title_short | Increasing Structural Performance of Space Telescope Mirrors through Simultaneous Shape and Size Optimization |
| title_sort | increasing structural performance of space telescope mirrors through simultaneous shape and size optimization |
| topic | telescope mirrors structural optimization size and shape design variables wavefront error gravity release Zernike polynomials |
| url | https://www.mdpi.com/2226-4310/9/11/646 |
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