| 某大型雷达抗风与抗震力学分析 |
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| 引用本文： | 严洲,益志英,徐望,翁俊.某大型雷达抗风与抗震力学分析[J].电子机械工程,2016,32(6):60-64. |
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| 作者姓名： | 严洲 益志英 徐望 翁俊 |
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| 作者单位： | 北京无线电测量研究所,北京,100854 |
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| 摘 要： | 文中针对某大型雷达进行了抗风与抗震力学分析.在抗风分析中,首先通过计算流体力学计算了不同工况下的风载荷,作为后续分析的输入;然后通过有限元法,依据规范对天线座架进行了刚强度和结构稳定性校核;最后对各个螺栓进行了强度校核.在抗震分析中,通过有限元法对天线座架进行了九度多遇地震下的反应谱分析.在分析的基础上,对天线座架进行了结构优化.结果表明,天线结构具有足够的抗风与抗震稳定性和安全性.
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| 关 键 词： | 大型雷达 抗风与抗震力学分析 计算流体力学 有限元 |
Wind-resistance and Aseismatic Mechanics Analysis of a Large Radar |
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| YAN Zhou,YI Zhi-ying,XU Wang and WENG Jun.Wind-resistance and Aseismatic Mechanics Analysis of a Large Radar[J].Electro-Mechanical Engineering,2016,32(6):60-64. |
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| Authors: | YAN Zhou YI Zhi-ying XU Wang and WENG Jun |
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| Affiliation: | Beijing Institute of Radio Measurement,Beijing Institute of Radio Measurement,Beijing Institute of Radio Measurement and Beijing Institute of Radio Measurement |
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| Abstract: | The wind-resistance and aseismatic mechanics performance of a large radar is analyzed in this paper. In the wind-resistance analysis, the wind loads under different work conditions, as input conditions, are calculated by CFD firstly; then the stiffness and strength of the antenna pedestal are checked by FEA and its structure stability is also checked according to the specifications; at last, the bolt strength is checked. In the aseismatic analysis, the response spectrum of the antenna pedestal under 9 degree frequent earthquake is analyzed by FEA. The structure optimization for the antenna pedestal is carried out based on the wind-resistance and aseismatic mechanics analysis. The results show that the stability and safety of the antenna pedestal meet the design requirements. |
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| Keywords: | large radar wind-resistance and aseismatic mechanics analysis CFD FEA |
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