航天器环境工程2026，Vol.43Issue(2)：92-100,9.DOI:10.12126/see.2026011
GEO离轴三反大口径空间望远镜精密热控设计与验证
Design and verification of a precision thermal control system for a large-aperture off-axis three-mirror space telescope in GEO
韩小晨 1丁锋锋 1徐天潇 1叶子龙 1王江1
作者信息
摘要
Abstract
To meet the thermal control requirements of the main structure and optical components of a large-aperture off-axis three-mirror space telescope in GEO,a thermal control scheme combining overall thermal control with precision heating at key positions is proposed.The scheme integrates passive thermal protection with multi-layer insulation(MLI),surface blackening,localized heat flux shielding,and active heating,along with 112 low-power heaters and three precision temperature controllers.Thermal analysis under typical operating conditions was conducted using thermal simulation software,and thermal balance tests were carried out in a vacuum chamber for validation.The results showed that the maximum temperature difference of the main structure was 0.4℃,with a temperature stability of less than 0.1℃over one orbital period.For the optical components,the maximum temperature difference was 0.1℃,and the temperature stability was also less than 0.1℃over one orbital period.All thermal control parameters meet or exceed the design requirements.This thermal control scheme can serve as a reference for the thermal design of similar high-precision space optical payloads.关键词
离轴三反大口径空间望远镜/精密热控设计/热平衡试验/温度稳定性Key words
large-aperture off-axis three-mirror space telescope/precision thermal control design/thermal balance test/temperature stability分类
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韩小晨,丁锋锋,徐天潇,叶子龙,王江..GEO离轴三反大口径空间望远镜精密热控设计与验证[J].航天器环境工程,2026,43(2):92-100,9.
