火箭推进2017，Vol.43Issue(2)：9-17,9.
离子推力器羽流沉积对卫星热控影响研究
Influence of plume deposit of ion thruster on thermal control properties of satellite
林骁雄 1陶家生 1温正1
作者信息
- 1. 中国空间技术研究院通信卫星事业部,北京100094
- 折叠
摘要
Abstract
The ion electric thruster plume is plasma that consists of charged particles,which has a tendency to be adsorbed onto satellite surface.The deposition of the plume can change the absorptivity and emissivity of the satellite surface,which has a negative influence on thermal control property of the satellite.In order to predict this influence,a ion thruster plume model was built.The layout position and working parameters of an engineering ion thruster are adopted in the model to simulate the actual conditions of positive ion and electron beam,which makes the model more in accord with reality.The spatial distribution and electric field distribution of ions,electrons and neutral particles,and deposition distribution of molybdenum particles on satellite surface were obtained with numerical simulation.The ion distributions got by simulation calculation and experiment was compared,which validated the correctness of the model analysis.The thermal property of the satellite surface and the maximum envelope of temperature increase in local region of the satellite surface are given in this paper.关键词
离子推力器/羽流建模/卫星热控/羽流沉积Key words
ion thruster/plume modeling/satellite thermal control/plume deposition分类
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林骁雄,陶家生,温正..离子推力器羽流沉积对卫星热控影响研究[J].火箭推进,2017,43(2):9-17,9.
