航天飞行器爆炸冲击环境减缓技术研究  

Pyroshock isolation of spacecrafts

作　　者：张正平[1] 秦朝红[1] 肖健[2] 李红[2] ZHANG Zhengping;QIN Zhaohong;XIAO Jian;LI Hong(Science and Technology on Reliability and Environment Engineering Laboratory,Beijing Institute of Structure and Environment Engineering,Beijing 100076,China;Beijing Institute of Structure and Environment Engineering,Beijing 100076,China)

机构地区：[1]北京强度环境研究所可靠性与环境工程技术重点实验室,北京100076 [2]北京强度环境研究所,北京100076

出　　处：《振动与冲击》2020年第18期169-173,共5页Journal of Vibration and Shock

基　　金：国家自然科学基金(11502023,51805036)。

摘　　要：星箭分离过程中,火工品解锁,卫星受到严酷的爆炸冲击环境,强烈的高频冲击环境可能使卫星上的电子、光学和其它敏感设备产生破坏。为减少卫星分离过程中相互之间产生的冲击作用,可在卫星与适配器之间安装减冲击环;通过对减冲击环的高频缓冲机理进行研究,分析冲击波的传递路径,在此基础上针对卫星模型进行减冲击环设计。采用爆炸冲击模拟星箭分离冲击环境,对其缓冲效果进行了评估,拐点之后减冲击环能衰减10 dB以上的冲击响应。During satellite-rocket separation,the satellite sustains serious pyroshock environment,which would damage the equipments on the satellite,such as electronic,optic and other sensitive equipments.To isolate the shock transmitted to satellite,a shock ring could be installed between satellite and adapter.The shock isolation mechanics of the shock ring in high frequency range was studied.The transmission path of shock waves was analyzed.On this basis,a shock ring for a satellite model was designed.The gunpowder explosion was used to simulate the satellite-rocket separation environment.The shock isolation property of the shock ring was evaluated by pyroshock tests.It is shown that the shock response spectrum of the satellite can be reduced by 10 dB by the shock ring after an inflection point.

关 键 词：卫星 减冲击环 爆炸冲击 缓冲 

分 类 号：TB535[理学—物理] O324[理学—声学]