空间卫星红外辐射灵敏度分析  

Analysis for infrared radiation sensitivity of spatial satellite

作　　者：杨明[1,2] 凌永顺[1,2] 吴晓迪[1,2] 吕相银[2] 杨华[2] 

机构地区：[1]解放军电子工程学院脉冲功率激光技术国家重点实验室,安徽合肥230037 [2]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,安徽合肥230037

出　　处：《航天电子对抗》2011年第1期26-29,32,共5页Aerospace Electronic Warfare

基　　金：国家863计划项目(2008AA8090311)

摘　　要：考虑卫星本体表面包覆绝热材料的实际物理状态,根据数值传热学和有限容积法建立了目标表面温度场和红外辐射计算模型。建立卫星结构模型,基于热控涂层性能退化,提出红外辐射灵敏度概念,并建立了卫星红外辐射灵敏度计算模型。对在轨飞行卫星的瞬态温度场进行数值模拟,与遥测数据对比分析。最后,分析了空间卫星的红外辐射和红外辐射灵敏度。结果表明,建立的卫星温度场计算模型合理,同时,红外辐射灵敏度概念的提出避免了由于热控涂层性能退化而造成卫星温度场和红外辐射重复计算的繁琐工作。By considering the physical condition of the multilayer insulation（MLI） of the satellite,the temperature field and infrared radiation of the thermal control coating is established with the numerical heat transfer and the finite volume method. Satellite structure model is established. Concept of infrared radiation sensitiVi- ty is put forward and the formula is detruded based on degradation of the thermal control coat- ings. Temperature field of spatial satellite is numerical calculated, and compared with remote data. At last, in- frared radiation and infrared radiation sensitivity are studied. The analytical results show that temperature field model of spatial satellite is reasonable, and fussy calculation of temperature and infrared radiation caused by degradation of the thermal control coatings is escapable under the infrared radiation sensitivity.

关 键 词：空间光学 红外辐射灵敏度 数值模拟 卫星 红外辐射 

分 类 号：V474.2[航空宇航科学与技术—飞行器设计]