空间可展开天线支撑结构热致振动与抑制研究

doi:10.7527/S1000-6893.2025.32798

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空间可展开天线支撑结构热致振动与抑制研究

罗成¹,林贵平²,罗敏³

1. 北京航空航天大学
2. 北京航空航天大学航空科学与工程学院
3. 北京空间飞行器总体设计部

收稿日期:2025-09-18 修回日期:2025-11-05 出版日期:2025-11-07 发布日期:2025-11-07
通讯作者: 林贵平

Thermally induced vibration analysis and suppression of space deployable antenna support structures

Received:2025-09-18 Revised:2025-11-05 Online:2025-11-07 Published:2025-11-07

摘要/Abstract

摘要： 针对在进出地球阴影时，空间可展开天线支撑结构在循环动态温度载荷下产生热致变形，诱发结构振动问题，建立了结构动力学模型，给出了复合材料杆件等效热力学材料参数，开展了热致振动响应分析。给出了被动式非线性粘性阻尼器（PNVD阻尼器）的设计和非线性流体阻尼表达式，提出了一种基于非线性流体阻尼的空间可展开天线支撑桁架结构热致振动抑制方法。空间可展开天线支撑结构模态阻尼实验结果表明，安装阻尼器前后，结构基频变化不大于1%，模态阻尼比提升大于2%。

关键词: 空间可展开天线, 热致振动, 非线性阻尼, 振动抑制, 航天器

Abstract: A structural dynamics model was established to address the issue of thermal deformation and induced structural vibration of large space deployable antenna support structures under cyclic dynamic temperature loads when entering and exiting the Earth's shadow. Equivalent thermodynamic material parameters of composite material members were provided, and thermal vibration response analysis was conducted. The nonlinear fluid damping model of PNVD (Passive Nonlinear Viscous Damper) is presented, a spatially deployable antenna support truss structure thermal vibration suppression method based on nonlinear fluid damping is proposed. The experimental results of modal damping of large deployable antenna support structures show that before and after installing dampers, the fundamental frequency of the structure changes by no more than 1%, and the modal damping ratio increases by more than 2%.

Key words: Space deployable antenna, Thermally induced vibration, Nonlinear damping, Vibration suppression, spacecraft

中图分类号:

罗成林贵平罗敏. 空间可展开天线支撑结构热致振动与抑制研究[J]. 航空学报, doi: 10.7527/S1000-6893.2025.32798.

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E-mail：hkxb@buaa.edu.cn

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主管单位：中国科学技术协会主办单位：中国航空学会北京航空航天大学

空间可展开天线支撑结构热致振动与抑制研究

Thermally induced vibration analysis and suppression of space deployable antenna support structures

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