静止轨道高精度遥感卫星在轨冲击监测与定位  

Impact Monitoring and Positioning of High Precision Remote Sensing Satellite in Geostationary Orbit

作　　者：齐麟 张永涛[2] 陈晓杰[2] 曾擎[2] 许娜 QI Lin;ZHANG Yongtao;CHEN Xiaojie;ZENG Qing;XU Na(School of Aeronautics and Astronautics,Shanghai Jiao Tong University,Shanghai 200240,China;Shanghai Institute of Satellite Engineering,Shanghai 201109,China)

机构地区：[1]上海交通大学航空航天学院,上海200240 [2]上海卫星工程研究所,上海201109

出　　处：《上海航天（中英文）》2022年第6期161-166,共6页Aerospace Shanghai（Chinese&English）

摘　　要：针对空间环境下航天器偶发的冲击影响敏感载荷性能的问题,提出了利用振动测量系统实时连续监测载荷安装位置附近的动力学环境的方法,通过分析各测点的冲击时域响应大小及冲击发生先后顺序,初步确定冲击发生的位置。结果表明:冲击的发生以天为周期,一天之中冲击发生的频次和强度与航天器所处轨道位置强相关,且存在2个明显的冲击高发时段。冲击很可能发生于载荷底板附近,可在地面试验中进行精确定位和完善设计。上述研究实现了在轨冲击现象的定量分析及冲击源的定位,将提升现有在轨动力学分析的能力,指导后续航天器设计,降低冲击现象对敏感载荷性能的影响。In order to solve the problem that the occasional impact of a spacecraft in space environment affects the performance of its sensitive payloads,a method is proposed to continuously monitor the dynamic environment near the installation position of payloads in real time by using the vibration measurement system,with which the on-orbit impact phenomena can be quantitatively analyzed and the impact sources can be positioned. The impact location is preliminarily determined by analyzing the time domain response of each measuring point and the sequence of impact occurrence. The results show that the impact occurs in a day cycle,and the frequency and intensity of the impact in a day are strongly correlated with the orbital position of the spacecraft,and there are two obvious high impact periods. The impact probably occurs near the payload bottom plate,which can be accurately positioned and designed in ground tests. The above research will improve the current on-orbit dynamics analysis capability,guide the subsequent spacecraft design,and reduce the impact phenomenon on the performance of sensitive payloads.

关 键 词：在轨冲击 冲击定位 在轨测量系统 航天器动力学 冲击统计分析 

分 类 号：O342[理学—固体力学]