Development of the Accelerated Test Procedure for the SPT Discharge Chamber Wall Wearing During Long Thruster Operation

Kim, Vladimir; Abgaryan, V. K.; Козлов, В. І.; Skrylnikov, Alexander; Jolivet, Laurent; Prioul, M.

doi:10.2514/6.2003-5003

Cited by 5 publications

(5 citation statements)

References 2 publications

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“…[4][5][6][7] Most have been semiempirical in nature, require experimental data as an input, and have indeterminate applicability at operating conditions substantially different from those used to determine their empirical relationships. In order to address these shortcomings, a simple physics-based analytic life predictive capability was sought based on thruster configuration, thruster operating conditions, and known sputter yields.…”

Section: Introductionmentioning

confidence: 99%

Predicting Hall Thruster Operational Lifetime

Manzella

Yim

Boyd

2004

40th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit

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Section: Introductionmentioning

confidence: 99%

Predicting Hall Thruster Operational Lifetime

Manzella

Yim

Boyd

2004

40th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit

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“…The wall erosion rate formula of the discharge channel is given in [12,13,15]. The detailed derivation process can be seen in the references.…”

Section: Validation Of Accelerated Life Test Methodsmentioning

confidence: 99%

“…Hence, accelerated life tests of Hall thrusters are preferred to predict their lifetimes. The Moscow Aeronautical Institute of Russia proposed an accelerated test method to study the wall erosion of the discharge channel of a Hall thruster and performed validations using the SPT-100 [12]. The Russia Keldysh Research Center proposed a semi-empirical life prediction method and verified it on the 325 W KM-45 and 900 W EM-900 thrusters [13].…”

Section: Introductionmentioning

confidence: 99%

Life test research of a high specific impulse Hall thruster HEP-140MF

Wei¹,

Wu²,

Hu³

et al. 2020

Plasma Sci. Technol.

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In this study, a high specific impulse Hall thruster, HEP-140MF, having a high discharge voltage, was used to accelerate ions. We aimed to obtain a high specific impulse and an acceleration zone moving downstream toward the channel exit to reduce wall sputtering erosion of the walls of the discharge channel, hence ensuring an enhanced lifetime. To study the lifetime characteristics of the high specific impulse Hall thruster, a life test was performed on the HEP-140MF thruster for the first time, and performance parameters, such as thrust, specific impulse, and efficiency, were measured. Changes in the performance parameters and evolutions in the surface profiles of the discharge channel wall were summarized. The reasons contributing to these changes during the life test were analyzed. Moreover, the accelerated life test method was validated on the HEP-140MF.

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“…Primarily occurring in Russia, the main development bed of Hall thrusters during the 1970's and 1980's, the semi-empirical methods are used to accelerate the lifetime testing of operational thrusters 24 . By using computational methods which match well with the beginning of life data taken from the thruster, this method is used to calculate an eroded profile near the 1000 hour operation point.…”

Section: Semi-empirical Methodsmentioning

confidence: 99%

“…First we discuss the major motivation behind extension of Hall thruster lifetime 5 and the benefits simulation has over experimentation 6 . Then we compare and contrast the various approaches, be they empirical [7][8][9][10][11][12][13] , theoretical [14][15][16][17][18][19][20][21][22] , or a mixed method [22][23][24][25] , which over the past 15 years have yielded varying levels of success in comparison with data [7][8][9] . Finally we make recommendations for future projects and areas of improvement.…”

Section: Introductionmentioning

confidence: 99%

The Erosion Prediction Impact on Current Hall Thruster Model Development

Eagle

Boyd²,

Trepp

et al. 2008

44th AIAA/ASME/SAE/ASEE Joint Propulsion Conference &Amp;amp; Exhibit

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The past ten years have seen a rapid increase in interest in high specific impulse thrusters which can deliver very high payload mass fractions compared to chemical thrusters. One such choice, the Hall thruster, is gaining ground due to its relative simplicity and commercial availability. In order to accomplish high impulse missions however, these low thrust devices must successfully operate for thousands of hours. To help offset the enormous cost of extended ground testing, a variety of modeling efforts is underway. The goal of this paper is to overview the past and present of Hall thruster model development and to highlight three areas of research: improved sputtering models, uniform availability of magnetic field data and anomalously high electron mobility, which have each individually shown promise towards improving the predictive capability of these modeling efforts.

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Development of the Accelerated Test Procedure for the SPT Discharge Chamber Wall Wearing During Long Thruster Operation

Cited by 5 publications

References 2 publications

Predicting Hall Thruster Operational Lifetime

Predicting Hall Thruster Operational Lifetime

Life test research of a high specific impulse Hall thruster HEP-140MF

The Erosion Prediction Impact on Current Hall Thruster Model Development

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