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。
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.
出处
《航天器工程》
2008年第6期33-38,共6页
Spacecraft Engineering
基金
国家重大科技专项工程
关键词
航天器
大型网状天线
非线性有限元建模
模态分析
spacecraft
large mesh antenna
nonlinear finite element modeling
modal analysis
