| 大尺度薄壁结构力-热-电一体化分析 |
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| 引用本文： | 何东泽,李彦斌,陈强,刘健,谭福颖,费庆国.大尺度薄壁结构力-热-电一体化分析[J].宇航学报,2021,42(1):74-82. |
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| 作者姓名： | 何东泽 李彦斌 陈强 刘健 谭福颖 费庆国 |
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| 作者单位： | 1. 东南大学江苏省空天机械装备工程研究中心，南京 211189；2. 东南大学机械工程学院，南京 211189； 3. 北京空天技术研究所，北京 100074 |
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| 基金项目： | 国家自然科学基金(11802059, 11572086)；江苏省自然科学基金(BK20170022, BK20170656) |
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| 摘 要： | 基于有限元-多层快速多级子方法(FEM MLFMM)提出天线罩力热电一体化分析方法，以平板为研究对象，验证一体化分析方法的准确性；以大尺度升力天线罩为研究对象，开展气动力和气动热载荷下结构的力-热-电一体化分析，评估力/热环境下结构的强度性能，并探究力/热载荷对结构电磁透波性能的影响规律。研究结果表明：提出的一体化分析方法具有较好的分析精度；在气动力载荷下，天线罩透波性能下降，下降幅值随着气动力载荷的增大而增大；高温引起的材料电磁参数变化对天线罩透波性能有较大影响；在天线罩结构设计阶段，需要充分考虑气动热和气动力载荷对其电磁性能的影响。
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| 关 键 词： | font-size:10.5pt '>气动热载荷 气动力载荷 天线罩 透波 一体化分析 |
| 收稿时间： | 2020-03-02 |
Force Thermal Electricity
Integration Analysis of Large scared Thin walled Structures |
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| HE Dong ze,LI Yan bin,CHEN Qiang,LIU Jian,TAN Fu ying,FEI Qing guo.Force Thermal Electricity
Integration Analysis of Large scared Thin walled Structures[J].Journal of Astronautics,2021,42(1):74-82. |
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| Authors: | HE Dong ze LI Yan bin CHEN Qiang LIU Jian TAN Fu ying FEI Qing guo |
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| Affiliation: | 1. Engineering Research Center of Aerospace Machinery,
Southeast University, Nanjing 211189, China；2. School of Mechanical Engineering, Southeast University, Nanjing 211189, China；3. Beijing Aerospace Technology Institute, Beijing 100074, China |
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| Abstract: | Based on the finite element method multi level fast multi pole method (FEM MLFMM), a force thermal electricity integration analysis method of radome is proposed in
this paper. A thin walled plate is taken as the
research object to verify the accuracy of the integrated analysis method. Then,
taking a large scale radome as the research object, the
integrated analysis of force, heat and electricity under aerodynamic and
aerodynamic thermal loads is carried out to evaluate the strength performance
of the structure under force/thermal environment. The influence of
force/thermal load on the electromagnetic wave transmission performance of the
structure is investigated. The results show that the proposed integrated
analysis method achieves high precision. Taking the aerodynamic load into
consideration, the radome’s transmission performance
decreases while the drop amplitude increases with the increase of aerodynamic
load. The change of material electromagnetic parameters caused by high
temperature has great influence on the transmission performance of the radome.
In the design stage of radome, the influence of aerodynamic heat and
aerodynamic load on its electromagnetic performance should be considered. |
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| Keywords: | Aerodynamic thermal load Aerodynamic force load Radome Transmittance Integrated analysis |
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