空间环境模拟设备穿透式隔振系统性能仿真分析  

Lab-Designed Vibration-Isolation Platform with Flexible Sample-Installation Manipulator for Space Environment Simulator:An Instrumentation Study

作　　者：吕世增[1] 丁文静[1] 龚洁[1] 韩潇[1] 张磊[1] Lv Shizeng;Ding Wenjing;Gong Jie;Han Xiao;Zhang Lei(Bejing Institute of Spacecraft Environment Engineering,Beijing 100094,China)

机构地区：[1]北京卫星环境工程研究所,北京100094

出　　处：《真空科学与技术学报》2020年第4期308-312,共5页Chinese Journal of Vacuum Science and Technology

摘　　要：某些航天器产品,特别是光学载荷在进行空间环境试验时对试验环境的振动指标通常有严格的要求,需要采用隔振系统。而空间环境模拟设备内部特殊的真空、低温环境,对隔振系统的设计提出了特殊的要求。本文给出了一种穿透式隔振系统的总体设计方案,并采用整体模态分析、系统振幅分析方法对隔振系统的性能进行了分析计算。结果表明,隔振系统能够满足在1~2 Hz频段内,3个方向的振动位移幅值均≤0.4μm,具有良好的低频隔振性能,能够满足航天器产品空间环境模拟试验时对振动的隔离需求。The lab-built vibration-isolation platform,for space environment simulator in ground simulation study of the highly vibration-sensitive spacecraft instruments and devices,especially optical devices,was empirically approximated,mathematically modeled,and numerically simulated in finite element method via integral modal and vibration amplitude analyses.The lab-built vibration-isolation platform comprises:the ultra-high vacuum chamber installed with a highly rigid device/sample-holder,a lab-designed flexible sample-exchange/installation manipulator and a home-made pneumatic vibration isolation table.The simulated results show that the lab-built vibration-isolation platform meets the stringent requirements of the space environment simulation test.To be specific,in 1~2 Hz environment vibration range,the largest vibration amplitudes in X,Y,Z directions were was found to be≤0.4μm.

关 键 词：空间环境 隔振系统 模拟设备 仿真分析 

分 类 号：V416.5[航空宇航科学与技术—航空宇航推进理论与工程]