刘卫,刘四清,龚建村,王荣兰.临近空间落球探测仿真分析[J].装备环境工程,2020,17(8):1-7. LIU Wei,LIU Si-qing,GONG Jian-cun,WANG Rong-lan.Simulation Analysis of Falling Ball Detection in Near Space[J].Equipment Environmental Engineering,2020,17(8):1-7.
临近空间落球探测仿真分析
Simulation Analysis of Falling Ball Detection in Near Space
投稿时间:2019-12-17  修订日期:2020-07-20
DOI:10.7643/issn.1672-9242.2020.08.001
中文关键词:  临近空间  落球  仿真  作用力
英文关键词:near space  falling ball  simulation  acting force
基金项目:北京市科技重大专项(Z181100002918004)
作者单位
刘卫 中国科学院国家空间科学中心, 北京 100190;中国科学院大学, 北京 100049;中国科学院空间环境态势感知技术重点实验室, 北京 100190 
刘四清 中国科学院国家空间科学中心, 北京 100190;中国科学院大学, 北京 100049;中国科学院空间环境态势感知技术重点实验室, 北京 100190 
龚建村 中国科学院微小卫星创新研究院, 上海 201210;中国科学院大学, 北京 100049;中国科学院空间环境态势感知技术重点实验室, 北京 100190 
王荣兰 中国科学院国家空间科学中心, 北京 100190;中国科学院空间环境态势感知技术重点实验室, 北京 100190 
AuthorInstitution
LIU Wei National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China;University of Chinese Academy of Sciences, Beijing 100049, China;Key Laboratory of Science and Technology on Environmental Space Situation Awareness, CAS, Beijing 100190 
LIU Si-qing National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China;University of Chinese Academy of Sciences, Beijing 100049, China;Key Laboratory of Science and Technology on Environmental Space Situation Awareness, CAS, Beijing 100190 
GONG Jian-cun Innovation Academy for Microsatellites, Chinese Academy of Sciences, Shanghai 201210, China;University of Chinese Academy of Sciences, Beijing 100049, China;Key Laboratory of Science and Technology on Environmental Space Situation Awareness, CAS, Beijing 100190 
WANG Rong-lan National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China;Key Laboratory of Science and Technology on Environmental Space Situation Awareness, CAS, Beijing 100190 
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中文摘要:
      目的 基于硬质落球,分析探测临近空间大气密度和水平风场的载荷需求和探测性能。方法 仿真计算自由下落探测段受力情况,建立运动方程。以假定释放条件,仿真落球的探测过程,给出各作用力量级。结果 面质比的变化不能改变气动力范围。相同加计灵敏度下,增大面质比可提高探测高度。150 km以下的探测中可忽略光压力,探测到水平风场米级变化的加计灵敏度需求为1×10-5m/s2。结论 面质比的变化不能改变气动力范围。相同加计灵敏度下,增大面质比可提高探测高度。
英文摘要:
      The work aims to analyze the atmospheric density of near space and the load demand and detection performance of wind field based on hard falling ball. The force of free falling detection section was subject to simulating calculation and then a motion equation was established. Taking the assumed release condition as initial state, the detection process was simulated, and the acting force levels and ranges were given. The variation of the area-to-mass ratio (AM) could not change the range of aerodynamic force. Increased AM could improve detection height if at the same accelerometer sensitivity. The solar pressure could be neglected in the detection below 150 km. The meter level changes in horizontal wind field could be detected in case of accelerometer sensitivity 1×10-5 m/s2. In conclusion, the variation of the area-to-mass ratio (AM) cannot change the range of aerodynamic force. Increased AM can improve detection height if at the same accelerometer sensitivity.
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