Analysis and Study on Influence of Discharge Chamber Configuration for Pulsed Plasma Thruster

The mechanism and effects of discharge chamber configuration parameters on thruster performance are investigated by conducting discharge experiments on pulsed plasma thruster(PPT),combining with theoretical calculation and analysis. The results show that the peak value of the discharge current decre...

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Bibliographic Details
Published inTui jin ji shu Vol. 41; no. 12; p. 2874
Main Authors Liu, Qi, Yang, Lei, Zhang, Yi-qi, Fu, Chun-yu, Zhao, Xu, Huang, Yu-ping, Zheng, Zai-ping
Format Journal Article
LanguageChinese
Published Beijing China Aerospace Corporation 01.01.2020
Subjects
Ablation
Aspect ratio
Chambers
Configuration management
Discharge
Electrodes
Glycidyl azide polymer
Inductance
Pulsed plasma thrusters
Shape
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Summary:The mechanism and effects of discharge chamber configuration parameters on thruster performance are investigated by conducting discharge experiments on pulsed plasma thruster(PPT),combining with theoretical calculation and analysis. The results show that the peak value of the discharge current decreases with the increase of the gap between the electrodes near the ablative surface of the propellant. The increase of the aspect ratio of electrodes leads to a higher value of the inductance gradient and a better performance of electromagnetic impulse bit. Considering the discharge current concentrates on the area near the propellant surface,the current peak is mainly affected by the gap between electrodes in the upstream of the discharge chamber. So the method of increasing the electrodes flared angle in the downstream of the discharge chamber is adopted,being aimed to increase the aspect ratio. Such separation could settle the paradox of increasing the current peak value and increasing the inductance gradient and
ISSN:1001-4055