摘要
针对附加场磁等离子体推力器(AF-MPDT)阴阳极供气量对推力器性能的影响进行了研究。采用试验方法测量了稳态AF-MPDT的束流参数以及放电电压、放电电流、附加磁感应强度等工况参数,测量计算了推力、效率等性能参数。通过改变阴阳极供气比例,分析研究了初始气体分布对推力器性能及物理机制的影响。研究结果显示,阴极供气比重增大时,推力器推力及效率相应增大,但增大到一定比例,推力器出现工作不稳定导致性能下降,说明阴阳极存在最佳的供气比例,表明供气比例对推力器性能具有重要影响。
The effects of cathode and anode propellant mass flow rates on applied-field magnetoplasmadynamic thruster（AF-MPDT）performance were studied.The plume parameters and thruster working parameters including discharge voltage,discharge current and applied magnetic field were measured,and performance parameters including thrust,specific impulse and efficiency were calculated.By changing the proportion of anode and cathode gas supply,the influence of initial gas distribution on the performance and physical mechanism of thethruster was analyzed.The results show that both thrust and efficiency increase with the proportion of cathode gas supply,but when it increases to a certain percentage the thruster performance declines due to instability,which indicates the existence of the best proportion of anode and cathode gas supply and its significant influence on thruster performance.
出处
《中国空间科学技术》
EI
CSCD
北大核心
2017年第5期9-16,共8页
Chinese Space Science and Technology
基金
国防基础科研计划(JCKY2017)
关键词
附加磁场等离子推力器
电推进
阴阳极供气比例
推力器性能
物理机制
applied-field magnetoplasmadynamc thruster
electric propulsion
proportion of anode and cathode gas supply
thruster performance
physical mechanism
