中国空间科学技术2016，Vol.36Issue(1)：77-84,8.DOI:10.3780/j.issn.1000-758X.2016.0014
放电电压和屏栅电压对离子推力器性能的影响
Effects of discharge voltage and screen grid voltage on performance of ion thruster
摘要
Abstract
The effects of discharge voltage and screen grid voltage changing to working performance of a 6 cm Kaufman ion thruster were studied by combination of experiments and numerical simulation. In these experiments, the argon was used as propellant for the ion thruster,and many groups of data were gathered. Furthermore, based on Goebel's theory model,the effects of discharge voltage changing on beam current and propellant efficiency were simulated.And the particle in cell Monte-Carlo collide (PIC-MCC)theory was used to simulate the effects of screen voltage on beam current,propellant efficiency and acceleration grid current. Experiments and numerical simulation drew the same conclusions. When discharge voltage increases,ion beam current and propellant utilization efficiency tend to be stable after a corresponding increase.A similar beam electric current and propellant utilization efficiency changing pattern is observed when the screen grid voltage is increased, but acceleration grid voltage tends to be stable after a corresponding decrease.This study can provide a reference for increasing multi-modes ion thrusters'performance.关键词
离子推力器/多模式/放电电压/屏栅电压/氩气Key words
ion thruster/multi-modes/discharge voltage/screen grid voltage/argon分类
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王雨玮,任军学,吉林桔,汤海滨..放电电压和屏栅电压对离子推力器性能的影响[J].中国空间科学技术,2016,36(1):77-84,8.基金项目
北京市高等教育 "青年英才"计划 (YETP1129) （YETP1129）
