航天器环境工程2023，Vol.40Issue(6)：677-681,5.DOI:10.12126/see.2023039
重力差异导致的航天器设备安装精度变化量评估
Evaluation for the variation m installation precision of spacecraft equipment due to gravity differences
李圣山 1张少渤 1石小兵1
作者信息
- 1. 航天东方红卫星有限公司,北京 100094
- 折叠
摘要
Abstract
To evaluate the variations in the installation precision caused by the gravity differences between orbital and ground environment,a statistical analysis was carried out on the variation in equipment installation precision of twenty-seven launched small satellites under both no-load and full-load conditions in the ground environment,respectively.The linear regression relationship and parameter estimates of the lognormal distribution model were obtained.The results show that the relative error between the mean variation value and the measured value for the installation precision of spacecraft equipment under both no-load and fuil-load conditions did not exceed 10.6％,indicating that the lognormal distribution model can represent the variation distributions of spacecraft equipment installation precision under both conditions.The above study may provide a reference for the on-orbit equipment installation control.关键词
航天器设备/安装精度/对数正杰分布模型Key words
spacecraft equipment/installation precision/lognormal distribution model分类
航空航天引用本文复制引用
李圣山,张少渤,石小兵..重力差异导致的航天器设备安装精度变化量评估[J].航天器环境工程,2023,40(6):677-681,5.
