Modified Electromechanical Modeling and Parameters Analysis of Magnetoplasmadynamic Thruster

To predict the thrust of magnetoplasmadynamic thrusters (MPDTs), a modified electromechanical model was proposed and a comparison with experimental results is presented in this paper. The motion of propellant in the thruster was divided into two portions: the axial motion which was accelerated by th...

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Main Authors: Yu Zhang, Jianjun Wu, Yang Ou, Jian Li, Sheng Tan
Format: Article
Language:English
Published: MDPI AG 2019-06-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/12/12/2428
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author Yu Zhang
Jianjun Wu
Yang Ou
Jian Li
Sheng Tan
author_facet Yu Zhang
Jianjun Wu
Yang Ou
Jian Li
Sheng Tan
author_sort Yu Zhang
collection DOAJ
description To predict the thrust of magnetoplasmadynamic thrusters (MPDTs), a modified electromechanical model was proposed and a comparison with experimental results is presented in this paper. The motion of propellant in the thruster was divided into two portions: the axial motion which was accelerated by the interaction of current and induced self-field, and the swirling motion which was accelerated by the interaction of current and applied magnetic field. The electromechanical model was in good agreement with the experimental data, and the fitting degrees of the model were greater than 0.93. Furthermore, the influence of parameters on the performance of MPDT were investigated by utilizing the electromechanical model. The results indicate that the thrust performance of the thruster improved with the increase of discharge current, anode radius, applied magnetic field strength, and the decrease of mass flow rate. However, the large anode radius and low mass flow rate readily led to the failure of thruster function. Therefore, the model can not only predict the thrust performance of MPDTs, but also guide the design and operation optimization of the thruster.
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spelling doaj.art-dfd5a6f9bbd14127b3b2ba60ff4f9ac22022-12-22T04:27:26ZengMDPI AGEnergies1996-10732019-06-011212242810.3390/en12122428en12122428Modified Electromechanical Modeling and Parameters Analysis of Magnetoplasmadynamic ThrusterYu Zhang0Jianjun Wu1Yang Ou2Jian Li3Sheng Tan4College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, ChinaCollege of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, ChinaCollege of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, ChinaCollege of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, ChinaCollege of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, ChinaTo predict the thrust of magnetoplasmadynamic thrusters (MPDTs), a modified electromechanical model was proposed and a comparison with experimental results is presented in this paper. The motion of propellant in the thruster was divided into two portions: the axial motion which was accelerated by the interaction of current and induced self-field, and the swirling motion which was accelerated by the interaction of current and applied magnetic field. The electromechanical model was in good agreement with the experimental data, and the fitting degrees of the model were greater than 0.93. Furthermore, the influence of parameters on the performance of MPDT were investigated by utilizing the electromechanical model. The results indicate that the thrust performance of the thruster improved with the increase of discharge current, anode radius, applied magnetic field strength, and the decrease of mass flow rate. However, the large anode radius and low mass flow rate readily led to the failure of thruster function. Therefore, the model can not only predict the thrust performance of MPDTs, but also guide the design and operation optimization of the thruster.https://www.mdpi.com/1996-1073/12/12/2428magnetoplasmadynamic thrusterselectromechanical modelthrust performancedischarge currentanode radiusmass flow rateapplied magnetic field strength
spellingShingle Yu Zhang
Jianjun Wu
Yang Ou
Jian Li
Sheng Tan
Modified Electromechanical Modeling and Parameters Analysis of Magnetoplasmadynamic Thruster
Energies
magnetoplasmadynamic thrusters
electromechanical model
thrust performance
discharge current
anode radius
mass flow rate
applied magnetic field strength
title Modified Electromechanical Modeling and Parameters Analysis of Magnetoplasmadynamic Thruster
title_full Modified Electromechanical Modeling and Parameters Analysis of Magnetoplasmadynamic Thruster
title_fullStr Modified Electromechanical Modeling and Parameters Analysis of Magnetoplasmadynamic Thruster
title_full_unstemmed Modified Electromechanical Modeling and Parameters Analysis of Magnetoplasmadynamic Thruster
title_short Modified Electromechanical Modeling and Parameters Analysis of Magnetoplasmadynamic Thruster
title_sort modified electromechanical modeling and parameters analysis of magnetoplasmadynamic thruster
topic magnetoplasmadynamic thrusters
electromechanical model
thrust performance
discharge current
anode radius
mass flow rate
applied magnetic field strength
url https://www.mdpi.com/1996-1073/12/12/2428
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AT jianli modifiedelectromechanicalmodelingandparametersanalysisofmagnetoplasmadynamicthruster
AT shengtan modifiedelectromechanicalmodelingandparametersanalysisofmagnetoplasmadynamicthruster