大型空间薄膜天线在轨热致振动分析  

Analysis of thermal induced vibration of large space membrane antennas in orbit

作　　者：王宇嘉 范叶森[2] 李洋[2] 刘荣睿 安宁 季袁冬 WANG Yujia;FAN Yesen;LI Yang;LIU Rongrui;AN Ning;JI Yuandong(School of Aeronautics and Astronautics,Sichuan University,Sichuan 610065,China;China Academy of Space Technology(Xi’an),Xi’an 710000,China;School of Mathematics,Sichuan University,Sichuan 610065,China)

机构地区：[1]四川大学空天科学与工程学院,成都610065 [2]中国空间技术研究院西安分院,西安710000 [3]四川大学数学学院,成都610065

出　　处：《空间电子技术》2025年第2期57-67,共11页Space Electronic Technology

基　　金：国家重点研发计划课题(编号:2023YFB3407104)。

摘　　要：大型空间薄膜天线具有质量轻、折展比大等优点,是空间可展开天线的一个重要发展方向。薄膜天线在进出地球阴影区时,由于空间环境热辐射的急剧变化会出现热变形和热致振动,影响天线的正常工作。基于传热学和结构动力学理论,采用NX和ANSYS软件建立了大型空间薄膜天线的热致振动模型,分析了在进入地球阴影区时薄膜天线的温度场变化、热致振动及其影响因素。研究表明,天线结构尺寸和结构阻尼、张拉绳索预应力、薄膜阵面材料参数对薄膜天线热致振动影响较大,合理选择相应结构和材料参数可以有效抑制热致振动,为大型空间薄膜天线设计和热致振动抑制提供重要的参考和支撑。Large space membrane antennas offer advantages in terms of light weight and large folding-todeployment ratios,making them an important direction for the development of space deployable antennas.However,when membrane antennas enter and exit the Earth's shadow area,they experience rapid changes in thermal radiation that cause thermal deformation and thermally induced vibrations,which can affect their performances.This paper is based on the theories of heat transfer and structural dynamics,and uses NX and ANSYS software to establish a thermal induced vibration model for thermal induced vibrations in large space membrane antennas,analyzing temperature field changes,thermal induced vibrations,and the factors influencing these vibrations when entering the earth's shadow area.Research has shown that the size and damping of antenna structures,prestressing of tension ropes,and material parameters of thin film arrays have a significant impact on the thermal induced vibration of large membrane antennas.By carefully selecting appropriate structural and material parameters,thermal induced vibrations can be effectively suppressed,providing important reference and support for the design for large space membrane antennas and suppression of thermal induced vibration.

关 键 词：空间薄膜天线 地球静止轨道 空间热环境 热致振动 

分 类 号：V414[航空宇航科学与技术—航空宇航推进理论与工程]