Email this article Influence of plasma jets of electric jet engines on spacecraft functional characteristics
- Authors: Nadiradze A.B.1, Tikhomirov R.E.2, Maximov I.A.2, Kochura S.G.2, Balashow S.V.2
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Affiliations:
- Moscow aviation institute (national research university)
- JSC Academician M. F. Reshetnev “Information satellite systems”
- Issue: Vol 21, No 4 (2020)
- Pages: 524-533
- Section: Section 2. Aviation and Space Technology
- URL: https://journals.eco-vector.com/2712-8970/article/view/566779
- DOI: https://doi.org/10.31772/2587-6066-2020-21-4-524-534
- ID: 566779
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Abstract
The issues of compatibility of correcting electric jet engines (EJE) and large-size transformable antennas (LTA) used in high-orbit communication satellites are considered. The paper deals with the erosive and polluting effect of EJE jets interacting with knitted mesh material (grid mesh), which is used for manufacturing LTA reflectors. The erosive effect of the EJE jets on the LTA mesh is characterized by the fact that the angles of ions incidence on the surface of the threads in the mesh are in the range from 0 to 90°, i. e. such effect takes place at practically any angle of ions incidence on the mesh surface. The research includes both mathematical description of physical processes and conducting a wide series of experiments, which makes it possible to achieve the necessary reliability of the results. It has been established that the effect of plasma jets of correcting engines can lead to significant sputtering of the reflecting coating from the surface of a large-size antenna reflector. The authors obtained experimental data on the degradation of the reflection coefficient of electromagnetic radiation from the mesh, depending on the degree of plasma jet influence.
It was found that the sputtering of reflecting coating from the surface of threads does not significantly affect the reflection coefficient. The sputtering of the coating at the points of threads contact is much more significant. Strong dependence of the reflection coefficient on the type of mesh weaving was also found. The mechanism of sputtering products deposition on reflecting coatings of the thermal control system radiators was investigated. The results of calculations of the sputtering coefficient and the sputtering indicatrix of the reflecting coating applied to the mesh threads were obtained. The degradation of the functional characteristics of thermoregulatory coatings (TRC) during the deposition of thin films of gold, which is one of the possible materials for a reflecting coating, was experimentally determined. Estimates of the maximum permissible level of TRC contamination were obtained. It is shown that, subject to the relevant design rules, it is possible to use EJE and LTA together in high-orbit communication satellites.
About the authors
Andrey B. Nadiradze
Moscow aviation institute (national research university)
Author for correspondence.
Email: nadiradze@mai.ru
Dr. Sc., professo; Moscow aviation institute (national research university)
Russian Federation, 4, Volokolamskoe highway, Moscow, 125993Roman E. Tikhomirov
JSC Academician M. F. Reshetnev “Information satellite systems”
Email: tikhroman@iss-reshetnev.ru
head of the group; JSC Academician M. F. Reshetnev “Information satellite systems”
Russian Federation, 52, Lenin St., Zheleznogorsk, Krasnoyarsk region, 662972Igor A. Maximov
JSC Academician M. F. Reshetnev “Information satellite systems”
Email: mia@iss-reshetnetv.ru
Dr. Sc., head of the department; JSC Academician M. F. Reshetnev “Information satellite systems”
Russian Federation, 52, Lenin St., Zheleznogorsk, Krasnoyarsk region, 662972Sergey G. Kochura
JSC Academician M. F. Reshetnev “Information satellite systems”
Email: kochura@iss-reshetnev.ru
Cand. Sc., deputy general designer; JSC Academician M. F. Reshetnev “Information satellite systems”
Russian Federation, 52, Lenin St., Zheleznogorsk, Krasnoyarsk region, 662972Sergey V. Balashow
JSC Academician M. F. Reshetnev “Information satellite systems”
Email: balashow@iss-reshetnev.ru
head of the sector; JSC Academician M. F. Reshetnev “Information satellite systems”
Russian Federation, 52, Lenin St., Zheleznogorsk, Krasnoyarsk region, 662972References
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