航天器工程2023，Vol.32Issue(6)：89-94,6.DOI:10.3969/j.issn.1673-8748.2023.06.014
中高轨道卫星热控涂层太阳吸收比退化快速估算方法
Quick Estimation Method for Solar Absorptance Degradation of Thermal Control Coatings on GEO and MEO Satellites
刘宇明 1刘宠 1于强 1李宇 1王晶虎 1刘业楠 1丁义刚1
作者信息
- 1. 北京卫星环境工程研究所 可靠性与环境工程技术全国重点实验室,北京 100094
- 折叠
摘要
Abstract
Based on the periodic temperature variations of thermal control coatings of MEO and GEO satellite,this paper presents an method for estimating in-orbit performance changes of these coatings using an undetermined coefficient approach.The method relies solely on temperature da-ta,eliminating the need for satellite solar incidence angles,material thermal capacities,and other parameters,thus reducing the requirements and computational complexity for inversely estima-ting the in-orbit performance changes of thermal control coatings based on temperature.Using this method,and considering the existing in-orbit degradation data of the satellite optical solar re-flectors(OSR)and ground experimental data as references,while also accounting for the stability of the computed data,We estimated the in-orbit performance variation of the OSR's solar absorp-tion ratio on a certain satellite over a period of approximately three years ranging from 580 days to 1670 days.The results indicate that the solar absorption ratio on the satellite's OSR has only increased in by less than 0.01 over this approximately three-year period,demonstrating excellent stability.关键词
中高轨道卫星/热控涂层/太阳吸收比/温度/在轨性能变化Key words
MEO and GEO satellite/thermal control coating/solar absorption ratio/temperance/performance degradation of solar absorption in orbit分类
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刘宇明,刘宠,于强,李宇,王晶虎,刘业楠,丁义刚..中高轨道卫星热控涂层太阳吸收比退化快速估算方法[J].航天器工程,2023,32(6):89-94,6.
