航天器工程2024，Vol.33Issue(4)：44-49,6.DOI:10.3969/j.issn.1673-8748.2024.04.006
地球静止轨道LAR防静电白漆太阳吸收比变化分析
Analysis of Solar Absorption Ratio Variation of LAR Antistatic White Paint in Geostationary Orbit
文佳佳 1谢荣建 1钟思源 1程锦铭 2陈凡胜1
作者信息
- 1. 中国科学院上海技术物理研究所,上海 200083
- 2. 中国科学院上海技术物理研究所,上海 200083||上海理工大学,上海 200093
- 折叠
摘要
Abstract
The LAR antistatic white paint has a low absorption emission ratio and can be sprayed on surfaces of different shapes,making an important component of the spacecraft thermal control systems.Data is collected over 7 years and 4 years of in-orbit operation of two satellite camera baffles coated with LAR antistatic white paint on the outer surface in geostationary orbit.By combining the data with the thermal analysis model of the baffle in orbit,the temporal variation of solar absorption ratio of white paint with in-orbit time is revealed.The analysis results demon-strate that after 2 years in orbit,the solar absorption ratio of white paint degrades from 0.200 to 0.330,and after 5 years,it changes to 0.357,with the annual degradation rate decreasing from 7.90%to 0.55%,showing a decreasing trend year by year.According to this degradation model,it is predicted that the solar absorption ratio of white paint will be 0.357 after 10 years.By using the thermal analysis model and in-orbit data in the paper,the in-orbit degradation performance of the white paint can be obtained,providing data support for thermal control design of spacecraft and meeting the requirements of spacecraft longevity and efficient heat dissipation.关键词
地球静止轨道/LAR防静电白漆/太阳吸收比/退化性能Key words
geostationary orbit/LAR antistatic white paint/solar absorption ratio/degradation per-formance分类
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文佳佳,谢荣建,钟思源,程锦铭,陈凡胜..地球静止轨道LAR防静电白漆太阳吸收比变化分析[J].航天器工程,2024,33(4):44-49,6.
