65m射电望远镜天线静动力学分析

65m射电望远镜天线静动力学分析

内容简介：介绍了65 m天线结构的基本情况,分析了用于有限元分析的基本矩阵方程和65 m天线的载荷和边界条件。对65 m天线进行了静力学和动力学分析,得到了在典型仰角下的天线精度和谐振频率。同时,对天线进行了强度分析,得到了不同仰角和不同工况下的安全系数。结果表明：天线结构在给定条件下,能够满足设计需要,不会产生破坏,为该工程的结构设计提供了依据。

Abstract：The basic status of 65 m antenna structure is introduced and the basic matrix equations of FEA with load and boundary conditions for of 65 m antenna are analyzed.With the statics analysis and dynamics analysis of the 65 m antenna,the resonance frequencies and accuracy of antenna structure at typical elevation angles are obtained.Meanwhile,with the strength analysis of antenna,the strength safety coefficients of antenna structure at different elevation angles and operating conditions are obtained.With the results,a conclusion is drawn,that the antenna structure would meet designed requirements at given conditions,and breakage would not occur.This conclusion provides warrant for structure design of the project.

作者：米宏伟, 刘国玺, 郑元鹏, 张亚林,

关键词：65m天线, 静力学, 动力学, 精度, 谐振频率,