用于批产卫星的稀疏红外灯阵空间热流模拟方法  

A method for simulating space heat flux by sparse infrared lamp array for batch production satellites

作　　者：姜峰 孔林 王建超 王殿君 柏添 JIANG Feng;KONG Lin;WANG Jianchao;WANG Dianjun;BAI Tian(Chang Guang Satellite Technology Co.Ltd.,Changchun 13033,China)

机构地区：[1]长光卫星技术股份有限公司,长春130033

出　　处：《航天器环境工程》2024年第1期82-88,共7页Spacecraft Environment Engineering

摘　　要：针对批产卫星的空间外热流模拟,文章提出稀疏红外灯阵模拟方法。首先根据13169X/98型红外灯管的物理特性以及热流模拟需求进行数值分析,获得其平面热流分布规律;然后在真空设备中对数值计算的准确性进行试验验证,并总结红外灯管热流分布特性;通过对比不同控温方式,寻求匹配红外灯阵输出特性的最佳控制方法,使控温区域内的热流<3 W/m2;最后,以热流不均匀性引起卫星表面舱板温度梯度<3℃为约束条件,优化设计稀疏红外灯阵的数量与布局。结果表明:在灯管覆盖系数<5%的情况下,能实现热流模拟的偏差<3%,证明可以用较少的灯管实现外热流的较均匀模拟。In this paper,a method using sparse infrared lamp array was proposed to simulate the external space heat flux for batch production satellites.Firstly,numerical analysis was conducted based on the physical characteristics and the heat flux simulation requirements of 13169X/98 infrared lamp to obtain the plane heat flux distribution pattern.Then,a test was conducted in a vacuum facility to calibrate and verify the accuracy of the numerical calculation,and the heat flux distribution characteristics of infrared lamp were summarized.By comparing different temperature control methods,the optimal method matching the output characteristics of the infrared lamp array was selected out to realize a heat flux stability of less than 3 W/m2.Finally,with the constraint condition of heat flux non-uniformity causing a temperature gradient of less than 3℃on the surface of satellite cabin,the number and layout of sparse infrared lamp arrays were optimized.The results show that the deviation of heat flux simulation can be less than 3%with a lamp coverage coefficient of less than 5%,which indicates that the simulation of almost uniform external heat flux can be achieved with fewer lamps.

关 键 词：稀疏红外灯阵 热流分布 试验测试 空间热流模拟 

分 类 号：V19[航空宇航科学与技术—人机与环境工程] V416.5