| 星载大型网状天线非线性结构系统有限元分析 |
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| 引用本文： | 周志成,曲广吉.星载大型网状天线非线性结构系统有限元分析[J].航天器工程,2008,17(6):33-38. |
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| 作者姓名： | 周志成 曲广吉 |
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| 作者单位： | 1. 中国空间技术研究院通信卫星事业部,北京,100094
2. 北京空间飞行器总体设计部,北京,100094 |
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| 基金项目： | 国家重大科技专项工程项目 |
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| 摘 要： | 论述了大型网状可展开天线的非线性理论模型及其非线性模拟有限单元模型，并以一副4．2m天线为例进行了有限元建模分析，获得了这类天线的动力学振动特性。研究结果表明：拉索几何非线性和间隙接触非线性对大型网状天线系统的动力学特性具有较大影响。
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| 关 键 词： | 航天器 大型网状天线 非线性有限元建模 模态分析 |
Nonlinear Finite Element Analysis of Large Mesh Deployable Antenna on Satellite |
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| ZHOU Zhicheng,QU Guangji.Nonlinear Finite Element Analysis of Large Mesh Deployable Antenna on Satellite[J].Spacecraft Engineering,2008,17(6):33-38. |
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| Authors: | ZHOU Zhicheng QU Guangji |
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| Institution: | ZHOU Zhicheng, QU Guangji (1. Institute of Telecommunication Satellite,CAST, Beijing 100094, China;2. Beijing Institute of Spacecraft System Engineering, Beijing 100094, China) |
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| Abstract: | This paper firstly presents the nonlinear theoretical models and the nonlinear finite element models simulating the nonlinearity of the antennas. A Φ54. 2 meter mesh deployable antenna on the satellite is modeled and analyzed with ANSYS, which illustrates the important influence on the geometrical nonlinearity of tension cable and the contact nonlinearity of latch-up mechanism with gap on the dynamic characteristics of the antenna system. |
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| Keywords: | spacecraft large mesh antenna nonlinear finite element modeling modal analysis |
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