基于半经验模型的霍尔推力器壁面腐蚀形貌预测方法研究

doi:10.13675/j.cnki. tjjs. 180604

推进技术 ›› 2019, Vol. 40 ›› Issue (11): 2626-2632.DOI: 10.13675/j.cnki. tjjs. 180604

基于半经验模型的霍尔推力器壁面腐蚀形貌预测方法研究

吴楠¹,毛威¹,沈岩¹,胡鹏¹,扈延林¹

北京控制工程研究所，北京 100190

发布日期:2021-08-15
作者简介:吴楠，硕士生，研究领域为电推进技术。E-mail：18810963982@163.com
基金资助:
国家自然科学基金 51806011国家自然科学基金（51806011）。

Wall Corrosion Morphology Prediction of Hall ThrustersUsing Semi-Empirical Method

Beijing Institute of Control Engineering，Beijing 100190，China

Published:2021-08-15

摘要/Abstract

摘要： 为了研究霍尔推力器通道壁面溅射腐蚀对于推力器寿命的影响，针对霍尔推力器通道壁面溅射腐蚀演化过程，建立了预测推力器腐蚀形貌的半经验模型。该模型根据试验测量形貌数据，反推离子源模型，结合腐蚀速率公式，对霍尔推力器的壁面形貌进行演化预测。分别以SPT-100，T-220及KM-45短时间的壁面形貌作为输入条件，对不同功率量级推力器的壁面腐蚀过程、预测误差和腐蚀速率进行了研究。数值模拟结果表明，对于10kW级T-220，1kW级SPT-100以及百瓦级KM-45推力器，壁面形貌的平均误差分别为2.65%，2.88%和3.64%。推力器壁面形貌的预测结果与实际测量值基本一致，该模型可用于霍尔推力器壁面形貌预测以及寿命预估。

关键词: 霍尔推力器;半经验模型;溅射腐蚀;腐蚀速率

Abstract: To investigate the effects of wall sputtering corrosion on the life of hall thruster, according to the evolution process of wall sputtering corrosion of hall thruster, a semi-empirical model was established to predict the corrosion morphology of hall thruster. Based on the experimental morphological data, this model pushes back the ion source model and combines the corrosion rate formula to predict the wall morphological evolution characteristics of hall thruster. Furthermore, taking the short-term wall morphology of SPT-100, T-220 and KM-45 as input conditions, the wall corrosion process, prediction error and corrosion rate of thrusters with different power levels were analyzed. The simulation results show that the average error of wall morphology for the 10kW -class T-220, 1kW-class SPT-100 and 100W-class level KM-45 thrusters is 2.65%, 2.88% and 3.64%, respectively. The predicted results of wall morphology are basically consistent with the actual measured value, and this model can be used for the prediction of wall morphology and life prediction of hall thruster.

Key words: Hall thruster;Semi-empirical model;Sputter corrosion;Corrosion rate

吴楠,毛威,沈岩,胡鹏,扈延林. 基于半经验模型的霍尔推力器壁面腐蚀形貌预测方法研究[J]. 推进技术, 2019, 40(11): 2626-2632.

WU Nan¹,MAO Wei¹,SHEN Yan¹,HU Peng¹,HU Yan-lin¹. Wall Corrosion Morphology Prediction of Hall ThrustersUsing Semi-Empirical Method[J]. Journal of Propulsion Technology, 2019, 40(11): 2626-2632.

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基于半经验模型的霍尔推力器壁面腐蚀形貌预测方法研究

Wall Corrosion Morphology Prediction of Hall ThrustersUsing Semi-Empirical Method

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