Abstract: Requirements on the magnetic field of the Stationary Plasma Thruster (SPT) was analyzed The design principle and methods for the magnetism system of the SPT were introduced Moreover, the static magnetic field of concrete SPT working on its standard condition was calculated on ANSYS and satisfactory results were obtained From this results deep and intuitionistic acknowledgements were got about the generation of the magnetic field of the SPT and the clues for design improvements of the thruster calculated were also evident At the same time, the feasibility and validity were confirmed of the numerical aided design of the magnetic field system of the Stationary Plasma Thruster on ANSYS platform

Key words: Plasma engine;Magnetic field;Numerical analysis;Optimized design

摘要： 首先分析了稳态等离子体推力器性能对磁场的要求 ,据此介绍了磁路系统的工程设计原则和方法 ;然后 ,采用ANSYS大型有限元分析软件对一个具体的稳态等离子体推力器在额定工况下的磁场进行了计算 ,获得了满意的结果。通过对结果的分析获得了对有关现象的直观深入的认识 ,为所计算具体推力器的改进设计提供了线索 ;同时 ,也证实了以ANSYS为软件平台的稳态等离子体推力器磁路系统计算机数值仿真辅助设计的可行性和有效性。

关键词: 等离子体发动机;磁场;数值分析;最优设计