摘要
卫星热控系统通过调节星上热量收集、转移、排放的过程,从而达到控制星体温度水平和温度稳定性的目的,对卫星进行在轨热状态分析和依据分析结果进行热控措施调节与评估至关重要。针对低轨微纳卫星热状态分析的关键问题,给出了卫星在轨时刻所受空间外热流的计算方法,在此基础上,综合考虑温度影响因素和传热特点,建立了卫星外壳、辐射器、内环境和内外部单机的瞬时温度计算模型。以一低轨微纳卫星为例进行仿真计算,对结果进行了分析与讨论,为进一步深入研究卫星的热控设计提供了快速、简便的分析方法。
The satellite thermal control system achieves the purpose of controlling the temperature level and temperature stability of the star by regulating the process of heat collection,transfer and emission on the satellite.It is very important to analyze the on-orbit thermal state of the satellite and to adjust and evaluate the thermal control measures based on the analysis results.Aiming at the key problems of thermal state analysis of low-orbit micro-nano satellites,the calculation method of the extra-space heat flow experienced by the satellites in orbit was given.On this basis,the temperature influencing factors and heat transfer characteristics were considered,and the instantaneous temperature calculation model of the satellite shell,radiator,internal environment,and internal and external stand-alone units were established.Taking an LEO(low earth orbit)micro-nano satellite as an example,the simulation calculation was carried out,and the results were analyzed and discussed,which provides a fast and simple analysis method for further in-depth study of the thermal control design of the satellite.
作者
闫新庆
李雅琪
张晨曦
皇甫中民
张宁
刘雪梅
YAN Xinqing;LI Yaqi;ZHANG Chenxi;HUANGFU Zhongmin;ZHANG Ning;LIU Xuemei(School of Information Engineering,North China University of Water Resources and Electric Power,Zhengzhou 450046,China)
出处
《中国空间科学技术》
CSCD
北大核心
2023年第3期35-42,共8页
Chinese Space Science and Technology
基金
国家自然科学基金(U1604152)。
关键词
微纳卫星
空间外热流
热控
温度场
在轨热分析
micro-nano satellite
space heat flux
thermal control
temperature field
on-orbit thermal analysis
