Magnet stage optimization of 5 kW multi-cusped field thruster

作     者：Peng HU Daren YU Yan SHEN 胡鹏;于达仁;沈岩

作者机构：Beijing Institute of Control EngineeringBeijing 100094People's Republic of China Lab of Advanced Space PropulsionBeijing 100094People’s Republic of China Beijing Engineering Research Center of Efficient and Green Aerospace Propulsion TechnologyBeijing 100094People’s Republic of China Plasma Propulsion Laboratory of Harbin Institute of TechnologyHarbin 150001People's Republic of China School of Aeronautics and AstronauticsSun Yat-sen UniversityGuangzhou 510006People's Republic of China 

出 版 物：《Plasma Science and Technology》 (等离子体科学和技术（英文版）)

年 卷 期：2020年第22卷第9期

页      面：128-138页

核心收录：

学科分类：080703[工学-动力机械及工程] 08[工学] 082502[工学-航空宇航推进理论与工程] 0807[工学-动力工程及工程热物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 0825[工学-航空宇航科学与技术] 0702[理学-物理学] 

基　　金：the support of National Natural Science Foundation of China(No.51806011) the Advance Research Project of Equipment Development(No.30501050203) the Advance Research Project of the Civil Space Program(No.D010509) 

主　　题：multi-cusped field magnet number magnet length performance optimization 

摘      要：The multi-cusped field thruster is a unique electric thruster device,which has many advantages such as long lifetime,large-range thrust throttling ability,high thrust density,and low *** thruster employs several alternating polarity permanent magnets to create a periodic magnetic field with several *** studies have indicated that the basic ionization and acceleration processes are directly related to the electron motion behavior,which mainly depends on the magnetic field *** magnet number and magnet stage length are two key magnetic field parameters that have important effects on the thruster *** this paper,both the magnet number and magnet stage length parameters are studied for the optimization of a 5 k W multi-cusped field *** results indicate that the three-stage thruster has a better electron confinement than the two-stage *** has lower ion energy loss at the wall,and shows a higher ionization ***,the three-stage magnetic field is a superior magnetic field ***,the three-stage magnetic field simulation results indicate that an optimal accelerating electric field distribution and ionization region distribution could be obtained when the magnet length ratio is 78:25:20.