Structural Optimization Design of Spaceborne Microwave Probe Antenna
The scanning drive mechanism of the spaceborne microwave-sounding antenna has two working modes of constant speed and variable speed, and the special structural form and layout of the reflecting surface lead to a large perturbation moment in the constant speed and variable speed scanning modes. The...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-02-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/15/5/2493 |
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| author | Damiao Wang Chang Yan Peiyuan Kan Jieying He Shengwei Zhang Wenjie Fan |
| author_facet | Damiao Wang Chang Yan Peiyuan Kan Jieying He Shengwei Zhang Wenjie Fan |
| author_sort | Damiao Wang |
| collection | DOAJ |
| description | The scanning drive mechanism of the spaceborne microwave-sounding antenna has two working modes of constant speed and variable speed, and the special structural form and layout of the reflecting surface lead to a large perturbation moment in the constant speed and variable speed scanning modes. The optimized design of the reflecting surface reinforcement structure of the antenna’s scanning drive mechanism is of great significance for the adjustment of the dynamic stiffness and rotational moment of inertia of the system, which helps to reduce the influence of the moment perturbation. In this paper, a design method combining topology optimization and size optimization is adopted to optimize the design of the reflecting surface reinforcement structure of the planar antenna. The topology optimization constrains the volume, and the objective function is the first-order frequency maximum. The topology optimization results show that the reinforcement is arranged along the center in a “palm” shape. The size optimization is based on the objective of minimizing the rotational inertia of the structure, and the constraints are the dynamic stiffness and the RMS of the structural stress values. The dynamic stiffness of the structure is improved after size optimization, the mass of the reinforcing bar is reduced by 26% compared with the original structure, the rotational inertia of the planar antenna is reduced by 39% compared with the original structure, and the perturbation moments are decreased by 52% at uniform speeds and by 39% at variable speeds. |
| format | Article |
| id | doaj-art-13d2aa9202a14737a1f74eefc21c22c9 |
| institution | DOAJ |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-13d2aa9202a14737a1f74eefc21c22c92025-08-20T02:53:19ZengMDPI AGApplied Sciences2076-34172025-02-01155249310.3390/app15052493Structural Optimization Design of Spaceborne Microwave Probe AntennaDamiao Wang0Chang Yan1Peiyuan Kan2Jieying He3Shengwei Zhang4Wenjie Fan5School of Aeronautics and Astronautics, University of Chinese Academy of Sciences, Beijing 100049, ChinaKey Laboratory of Microwave Remote Sensing, National Space Science Center, Chinese Academy of Sciences, Beijing 100190, ChinaKey Laboratory of Microwave Remote Sensing, National Space Science Center, Chinese Academy of Sciences, Beijing 100190, ChinaKey Laboratory of Microwave Remote Sensing, National Space Science Center, Chinese Academy of Sciences, Beijing 100190, ChinaKey Laboratory of Microwave Remote Sensing, National Space Science Center, Chinese Academy of Sciences, Beijing 100190, ChinaKey Laboratory of Microwave Remote Sensing, National Space Science Center, Chinese Academy of Sciences, Beijing 100190, ChinaThe scanning drive mechanism of the spaceborne microwave-sounding antenna has two working modes of constant speed and variable speed, and the special structural form and layout of the reflecting surface lead to a large perturbation moment in the constant speed and variable speed scanning modes. The optimized design of the reflecting surface reinforcement structure of the antenna’s scanning drive mechanism is of great significance for the adjustment of the dynamic stiffness and rotational moment of inertia of the system, which helps to reduce the influence of the moment perturbation. In this paper, a design method combining topology optimization and size optimization is adopted to optimize the design of the reflecting surface reinforcement structure of the planar antenna. The topology optimization constrains the volume, and the objective function is the first-order frequency maximum. The topology optimization results show that the reinforcement is arranged along the center in a “palm” shape. The size optimization is based on the objective of minimizing the rotational inertia of the structure, and the constraints are the dynamic stiffness and the RMS of the structural stress values. The dynamic stiffness of the structure is improved after size optimization, the mass of the reinforcing bar is reduced by 26% compared with the original structure, the rotational inertia of the planar antenna is reduced by 39% compared with the original structure, and the perturbation moments are decreased by 52% at uniform speeds and by 39% at variable speeds.https://www.mdpi.com/2076-3417/15/5/2493spaceborne microwave probe antennatopology optimizationsize optimizationreinforcements |
| spellingShingle | Damiao Wang Chang Yan Peiyuan Kan Jieying He Shengwei Zhang Wenjie Fan Structural Optimization Design of Spaceborne Microwave Probe Antenna Applied Sciences spaceborne microwave probe antenna topology optimization size optimization reinforcements |
| title | Structural Optimization Design of Spaceborne Microwave Probe Antenna |
| title_full | Structural Optimization Design of Spaceborne Microwave Probe Antenna |
| title_fullStr | Structural Optimization Design of Spaceborne Microwave Probe Antenna |
| title_full_unstemmed | Structural Optimization Design of Spaceborne Microwave Probe Antenna |
| title_short | Structural Optimization Design of Spaceborne Microwave Probe Antenna |
| title_sort | structural optimization design of spaceborne microwave probe antenna |
| topic | spaceborne microwave probe antenna topology optimization size optimization reinforcements |
| url | https://www.mdpi.com/2076-3417/15/5/2493 |
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