基于涂层性能退化的卫星红外辐射灵敏度分析  

Analysis for Infrared Radiation Sensitivity of Space Satellite Based on Degradation of Thermal Control Coatings

作　　者：杨明[1] 吴晓迪[1] 吕相银[1] 杨华[1] 马丽芳[1] 

机构地区：[1]解放军电子工程学院安徽省红外与低温等离子体重点实验室,合肥230037

出　　处：《光电工程》2010年第7期30-35,共6页Opto-Electronic Engineering

基　　金：安徽省红外与低温等离子体重点实验室基金资助项目(2007A012012F)

摘　　要：由于卫星表面热控涂层在空间恶劣环境下发生性能退化,导致实际参数与设计参数发生偏差,而重复计算卫星温度场和红外辐射耗时非常大。本文首先根据地面模拟实验数据建立了热控涂层性能退化模型,然后在卫星温度场和表面红外辐射计算模型的基础上,推导了卫星表面节点温度灵敏度和红外辐射灵敏度的计算公式。结合具体的卫星模型和轨道参数,求解了卫星表面节点温度灵敏度和红外辐射灵敏度。结果表明,热控涂层性能退化造成的卫星红外辐射特性变化,可直接利用卫星红外辐射灵敏度来分析,避免了卫星温度场和空间红外辐射的重复计算。Because of the degradation of the thermal control coatings in harsh space environment,the error between the real parameters and the design parameter must happen.However,calculating the satellite＇s temperature and infrared radiation repeatedly was time-consuming.Firstly,based on the simulation experimental data,the degradation model of the thermal control coatings was established.Then,the temperature sensitivity and infrared radiation sensitivity formulae of the surface node of the satellite were derived,according to the calculation model of the temperature and infrared radiation.Combined with specific satellite＇s parameter,the temperature sensitivity and infrared radiation sensitivity were calculated.The result shows that the change of infrared radiation caused by the degradation of the thermal control can be analyzed by using the infrared radiation sensitivity directly to avoid the repeat calculation of the satellite＇s temperature and infrared radiation.

关 键 词：卫星 热控涂层 温度灵敏度 红外辐射灵敏度 

分 类 号：V418[航空宇航科学与技术—航空宇航推进理论与工程]