Simulation of Drilling Temperature Rise in Frozen Soil of Lunar Polar Region Based on Discrete Element Theory
As the frozen soil in the South Pole region of the Moon is an important water resource, the operation of drilling and retrieving samples of the frozen soil in this region will be a crucial task for us to accomplish in future deep-space exploration. Thus, this paper investigated the effects of the in...
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Multidisciplinary Digital Publishing Institute
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ftmdpi:oai:mdpi.com:/2226-4310/10/4/368/ 2023-08-20T04:09:52+02:00 Simulation of Drilling Temperature Rise in Frozen Soil of Lunar Polar Region Based on Discrete Element Theory Jinsheng Cui Le Kui Weiwei Zhang Deming Zhao Jiaqing Chang 2023-04-11 application/pdf https://doi.org/10.3390/aerospace10040368 EN eng Multidisciplinary Digital Publishing Institute https://dx.doi.org/10.3390/aerospace10040368 https://creativecommons.org/licenses/by/4.0/ Aerospace; Volume 10; Issue 4; Pages: 368 planetary drilling lunar polar frozen soil temperature rise discrete element method Text 2023 ftmdpi https://doi.org/10.3390/aerospace10040368 2023-08-01T09:39:11Z As the frozen soil in the South Pole region of the Moon is an important water resource, the operation of drilling and retrieving samples of the frozen soil in this region will be a crucial task for us to accomplish in future deep-space exploration. Thus, this paper investigated the effects of the increasing temperature and heat transfer between the drilling tools and the simulated lunar soil to minimize the degradation of the frozen soil samples during drilling due to the increased temperature. Specifically, the discrete element method was adopted and the heat transfer parameters of the discrete element particles were calibrated based on the equivalent heat transfer of the particle system. Moreover, a lunar soil particle system was developed for the simulations. Under the current working conditions with reasonable parameters, the maximum increase in the drill bit temperature was about 60 °C. Overall, the simulation results were consistent with the experimental results, and further analysis revealed that the flow of lunar soil can effectively take away thermal, which is also one of the reasons why the simulated lunar soil particles are in a high-temperature state at the front of the drilling tool. Text South pole MDPI Open Access Publishing South Pole Aerospace 10 4 368 |
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Open Polar |
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MDPI Open Access Publishing |
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ftmdpi |
language |
English |
topic |
planetary drilling lunar polar frozen soil temperature rise discrete element method |
spellingShingle |
planetary drilling lunar polar frozen soil temperature rise discrete element method Jinsheng Cui Le Kui Weiwei Zhang Deming Zhao Jiaqing Chang Simulation of Drilling Temperature Rise in Frozen Soil of Lunar Polar Region Based on Discrete Element Theory |
topic_facet |
planetary drilling lunar polar frozen soil temperature rise discrete element method |
description |
As the frozen soil in the South Pole region of the Moon is an important water resource, the operation of drilling and retrieving samples of the frozen soil in this region will be a crucial task for us to accomplish in future deep-space exploration. Thus, this paper investigated the effects of the increasing temperature and heat transfer between the drilling tools and the simulated lunar soil to minimize the degradation of the frozen soil samples during drilling due to the increased temperature. Specifically, the discrete element method was adopted and the heat transfer parameters of the discrete element particles were calibrated based on the equivalent heat transfer of the particle system. Moreover, a lunar soil particle system was developed for the simulations. Under the current working conditions with reasonable parameters, the maximum increase in the drill bit temperature was about 60 °C. Overall, the simulation results were consistent with the experimental results, and further analysis revealed that the flow of lunar soil can effectively take away thermal, which is also one of the reasons why the simulated lunar soil particles are in a high-temperature state at the front of the drilling tool. |
format |
Text |
author |
Jinsheng Cui Le Kui Weiwei Zhang Deming Zhao Jiaqing Chang |
author_facet |
Jinsheng Cui Le Kui Weiwei Zhang Deming Zhao Jiaqing Chang |
author_sort |
Jinsheng Cui |
title |
Simulation of Drilling Temperature Rise in Frozen Soil of Lunar Polar Region Based on Discrete Element Theory |
title_short |
Simulation of Drilling Temperature Rise in Frozen Soil of Lunar Polar Region Based on Discrete Element Theory |
title_full |
Simulation of Drilling Temperature Rise in Frozen Soil of Lunar Polar Region Based on Discrete Element Theory |
title_fullStr |
Simulation of Drilling Temperature Rise in Frozen Soil of Lunar Polar Region Based on Discrete Element Theory |
title_full_unstemmed |
Simulation of Drilling Temperature Rise in Frozen Soil of Lunar Polar Region Based on Discrete Element Theory |
title_sort |
simulation of drilling temperature rise in frozen soil of lunar polar region based on discrete element theory |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2023 |
url |
https://doi.org/10.3390/aerospace10040368 |
geographic |
South Pole |
geographic_facet |
South Pole |
genre |
South pole |
genre_facet |
South pole |
op_source |
Aerospace; Volume 10; Issue 4; Pages: 368 |
op_relation |
https://dx.doi.org/10.3390/aerospace10040368 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/aerospace10040368 |
container_title |
Aerospace |
container_volume |
10 |
container_issue |
4 |
container_start_page |
368 |
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1774723599238692864 |