重力对大型可展开天线热变形测试结果影响分析与验证

doi:10.3901/JME.2021.03.069

机械工程学报 ›› 2021, Vol. 57 ›› Issue (3): 69-76.doi: 10.3901/JME.2021.03.069

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重力对大型可展开天线热变形测试结果影响分析与验证

王朋朋, 王波, 师甜, 郑士昆, 马小飞

西安空间无线电技术研究所西安 710100

收稿日期:2020-03-02 修回日期:2020-06-20 出版日期:2021-02-05 发布日期:2021-03-16
通讯作者: 马小飞(通信作者),男,1980年出生,研究员。主要研究方向为航天器结构设计与分析。E-mail:maxf041600@sina.com
作者简介:王朋朋,男,1985年出生,高级工程师。主要研究方向为星载大型可展开结构/机构仿真。E-mail:huohuoxjtu@163.com;王波,男,1980年出生,研究员。主要研究方向为星载大型可展开结构/机构设计。E-mail:wonbo2718@163.com;师甜,男,1987年出生,高级工程师。主要研究方向为星载大型可展开结构设计。E-mail:1044533303@qq.com;郑士昆,男,1978年出生,研究员。主要研究方向为星载大型可展开结构设计。E-mail:35014840@qq.com
基金资助:
国家自然科学基金资助项目（U1537213）。

Gravity Influence on Thermal Distortion of a Large Deployable Antenna

WANG Pengpeng, WANG Bo, SHI Tian, ZHENG Shikun, MA Xiaofei

Xi'an Institute of Space Radio Technology, Xi'an 710100

Received:2020-03-02 Revised:2020-06-20 Online:2021-02-05 Published:2021-03-16

摘要/Abstract

摘要： 研究重力对某大型可展开天线热变形测试结果的影响，通过仿真计算和试验测试对重力影响程度进行了分析和验证。首先，对大型可展开天线热变形来源进行了归类分析，并从中找出了受重力场影响的关键因素。然后，将重力场对各个误差来源的影响程度进行了详细分析，影响以天线位移变化的形式给出，并最终得出对整天线热变形的影响。最后，对天线在卸载和不卸载状态下的热变形进行了测试，测试结果显示，对文中所指的大型可展开天线，重力引起的热变形结果偏差均方根为0.046 mm，该误差与系统测试误差相当，因此，可以认为天线热变形测试结果对重力不敏感。

关键词: 重力影响, 热变形, 大型可展开天线

Abstract: Gravity influence on thermal distortion of a large deployable antenna is studied. Both numerical simulations and tests are extended together to evaluate and verify influence of gravity on thermal distortion results. Firstly, composition of the antenna thermal distortion is analyzed to find the main sources of differences which will change the thermal distortion results with gravity or without gravity. Secondly, the main sources of differences are estimated step by step, and the influences are given in form of displacements, then displacements of different parts are combined to get the final distortion of the antenna. Eventually, thermal distortion test of the antenna is conducted in zero g (by gravity off loading systems) and one g environment to verify the numerical analysis results.

Key words: gravity influence, thermal distortion, large deployable antenna

中图分类号:

V474

王朋朋, 王波, 师甜, 郑士昆, 马小飞. 重力对大型可展开天线热变形测试结果影响分析与验证[J]. 机械工程学报, 2021, 57(3): 69-76.

WANG Pengpeng, WANG Bo, SHI Tian, ZHENG Shikun, MA Xiaofei. Gravity Influence on Thermal Distortion of a Large Deployable Antenna[J]. Journal of Mechanical Engineering, 2021, 57(3): 69-76.

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重力对大型可展开天线热变形测试结果影响分析与验证

Gravity Influence on Thermal Distortion of a Large Deployable Antenna

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