“北京三号”卫星热真空试验方法  

Method for thermal vacuum test of Beijing-3 Satellite

作　　者：常静[1] 裴一飞[2] CHANG Jing;PEI Yifei(DFH Satellite Co.Ltd.,Beijing 100094,China;Beijing Institute of Spacecraft Environment Engineering,Beijing 100094,China)

机构地区：[1]航天东方红卫星有限公司,北京100094 [2]北京卫星环境工程研究所,北京100094

出　　处：《航天器环境工程》2025年第1期52-57,共6页Spacecraft Environment Engineering

摘　　要：“北京三号”卫星具有任务模式复杂、电子设备集成度高和功耗大等特点,如何提高外热流模拟的针对性、高效完成整星热真空试验是试验设计的关键。文章基于对该星热控设计和仪器设备工作特点的分析,从外热流的调节、星上加热回路状态设置和星上设备工作模式设置等方面提出协同调整红外笼模拟外热流和卫星内热源的温度控制方法。热真空试验结果表明:星上设备温度得到有效控制,均未超过验收级试验温度的上下限;4个循环的设备温度一致性好。该温度控制方法有效验证了星上设备在热真空环境下的工作能力,为未来类似卫星热真空试验提供了经验参考。The Beijing-3 satellite features complex mission modes,high electronic device integration,and significant power consumption.Enhancing the effectiveness of external heat flux simulation and ensuring efficient completion of the entire satellite thermal vacuum test is crucial for the test design.Based on the analysis of the thermal control design and operational characteristics of the onboard equipment for the Beijing-3 satellite,a temperature control method involving the coordinated adjustment of the infrared cage and internal heat sources through regulating the onboard heating circuit status and setting the operating modes of onboard equipment,was proposed.The thermal vacuum test results show that the onboard equipment temperatures were effectively controlled,all within the acceptance-level test temperature limits,maintaining good temperature consistency across the four cycles.This method has effectively verified the operational capabilities of the satellite equipment under thermal vacuum conditions,offering experience and a reference for future thermal vacuum tests of similar satellites.

关 键 词：北京三号卫星 热真空试验 外热流 内热源 热设计 

分 类 号：V416[航空宇航科学与技术—航空宇航推进理论与工程]