Electric propulsion plasma plume interaction with “Phobos-Soil” spacecraft structural components |
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| Authors: | Andrey B Nadiradze Vladimir A Obukhov Garri A Popov |
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| Institution: | 1. Rafael – Advanced Defense Systems, Haifa, 3102102, Israel;2. R Myers Consulting, LLC, Woodinville, WA, USA;3. Western Michigan University, Kalamazoo, MI, 49008, USA;4. George Washington University, Washington D.C., USA;5. The University of Tokyo, Bunkyo-ku, Tokyo, 113-8654, Japan;6. NASA Marshall Space Flight Center, Huntsville, AL, 35812, USA;1. Plasma Propulsion Laboratory, Harbin Institute of Technology, Harbin, 150001, People''s Republic of China;2. Department of Physics, Harbin Institute of Technology, Harbin, 150001, People''s Republic of China;1. CLAAS Hungaria Kft, Research and Development, Kombájn utca 1, H-5200 Törökszentmiklós, Hungary;2. Department of Automotive Technology, Institute of Process Engineering, Faculty of Mechanical Engineering, Szent István University, Páter K. u. 1., Gödöll? H-2103, Hungary |
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| Abstract: | Assessment was made by calculations for the possible consequences of the effect of plasma plume injected by the solar electric propulsion system (SEPS) on the structural components of “Phobos-Soil” spacecraft (SC). Propulsion system comprises three SPT-140 thrusters, two of which should secure the required total thrust impulse during 8000 hours of operation approximately. Variation of the solar panel (SP) properties as a result of their surface contamination with the products of erosion of thruster and SC structural components is the primary negative consequence of plasma plume effect on the SC. Calculation study for the processes of erosion, particle flow distribution, and contaminating coating formation on the SP surface was made for different SEPS arrangements. It is shown that power reduction for the landing module SP sections, which are subjected to the contaminating coating deposition to the most extent, will not exceed 5% of the nominal level. |
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