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Multiphysics Simulation and Analysis of Multi-ring Bias Lunar Dust Detector

Multiphysics Simulation and Analysis of Multi-ring Bias Lunar Dust Detector Lunar dust can affect the lunar rover's operation and endanger astronauts' health. Therefore, it is necessary to efficiently detect lunar dust particles' motion characteristics and cumulative distribution. We use the multi-physical field simulation software to simulate the multi-ring bias lunar dust detector. The motion and cumulative distribution of lunar dust less than 2 μm were calculated and analyzed by the simulation model established by COMSOL. The cumulative distribution of 2 μm lunar dust particles on the annular electrode is studied experimentally. The simulation results show that when the inner ring bias is + 30 V and the other ring bias is − 50 V, the dust collection efficiency of the 6-ring detector for 400 simulated dust with an initial velocity of 0.4 m/s below 2 μm is 98.75%, and the particle distribution is the most in the 4th ring. The 12-ring electrode structure with the same bias setting can achieve about 100% collection of the same charged dust, and the most particle distribution is the 10th ring. The experimental results show that the dust collected by the 6-ring electrode accounts for about 88.27% of the total, and the dust collected by the 12-ring electrode accounts for approximately 96.63% of the total. The distribution characteristics are similar to the simulation results. The results show that the 12-ring bias lunar dust detector can achieve higher collection rate detection corresponding to the lunar dust particles below 2 μm, accounting for 95%. However, as the charge–mass ratio of lunar dust decreases, the collection efficiency of the detector will gradually decrease. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png International Journal of Aeronautical and Space Sciences Springer Journals

Multiphysics Simulation and Analysis of Multi-ring Bias Lunar Dust Detector

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Publisher
Springer Journals
Copyright
Copyright © The Author(s), under exclusive licence to The Korean Society for Aeronautical & Space Sciences 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
ISSN
2093-274X
eISSN
2093-2480
DOI
10.1007/s42405-023-00604-5
Publisher site
See Article on Publisher Site

Abstract

Lunar dust can affect the lunar rover's operation and endanger astronauts' health. Therefore, it is necessary to efficiently detect lunar dust particles' motion characteristics and cumulative distribution. We use the multi-physical field simulation software to simulate the multi-ring bias lunar dust detector. The motion and cumulative distribution of lunar dust less than 2 μm were calculated and analyzed by the simulation model established by COMSOL. The cumulative distribution of 2 μm lunar dust particles on the annular electrode is studied experimentally. The simulation results show that when the inner ring bias is + 30 V and the other ring bias is − 50 V, the dust collection efficiency of the 6-ring detector for 400 simulated dust with an initial velocity of 0.4 m/s below 2 μm is 98.75%, and the particle distribution is the most in the 4th ring. The 12-ring electrode structure with the same bias setting can achieve about 100% collection of the same charged dust, and the most particle distribution is the 10th ring. The experimental results show that the dust collected by the 6-ring electrode accounts for about 88.27% of the total, and the dust collected by the 12-ring electrode accounts for approximately 96.63% of the total. The distribution characteristics are similar to the simulation results. The results show that the 12-ring bias lunar dust detector can achieve higher collection rate detection corresponding to the lunar dust particles below 2 μm, accounting for 95%. However, as the charge–mass ratio of lunar dust decreases, the collection efficiency of the detector will gradually decrease.

Journal

International Journal of Aeronautical and Space Sciences – Springer Journals

Published: May 5, 2023

Keywords: Lunar dust; Bias detector; Multi-ring electrode; Collecting efficiency; Multiphysics simulation; Lunar exploration

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