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桁架式可展开网状抛物面天线反射器的模态分析

熊永虎,寇晓东,刘晓宁   

  1. 中国科学院电子学研究所,美国ANSYS公司北京办事处,美国ANSYS公司北京办事处 北京100080 ,北京100007 ,北京100007
  • 发布日期:2004-08-25

Modal Analysis of Reflector of Deployable Parabolic Antennawith Truss Structure

Xiong Yonghu(Institute of Electronic, Chinese Academy of Science, Beijing 100080)Kou Xiaodong Liu Xiaoning(ANSYS, Inc. Beijing Office, Beijing 100007)   

  • Online:2004-08-25

摘要: 文章利用ANSYS软件中灵活多样化的单元 ,以及其强大的APDL语言 ,对小卫星合成孔径雷达可展开网状抛物面天线的反射器进行了模态分析。结果表明 ,反射面杆的连接方式对整体振动不产生本质上的影响 ,即在一定的频率范围内当连接扭簧刚度取不同值时 ,整体振型的数目相同 ,模态形状相似。

关键词: 抛物面天线, 合成孔径雷达, 模态分析, 小型卫星

Abstract: Modal analysis is described about the reflector of deployable parabolic antenna with truss structure by using ANSYS soft with its many element types and its powerful programming language APDL. The results show that the connection type of poles in reflector doesn't play an important role in oscillation of reflector, different rigidness of the torsion spring within a certain range will result in same numbers of mode and similar mode shapes.