TY - JOUR
TI - Study on the influence of rotation speed on drilling performance of lunar soil sampling drills
AU - Cao Jin-Feng
AU - Liu Xi-Long
AU - Liu Wen-Jie
AU - Hao Hai-Chun
AU - Liu Yu-Hang
AU - Li Zhao-Yang
AU - Huang Bo-Yuan
AU - Zhang Yuan-Bo
JN - Thermal Science
PY - 2025
VL - 29
IS - 2
SP - 1369
EP - 1374
PT - Article
AB - The Moon's complex environment, including low gravity, vacuum, and extreme  temperature fluctuations, as well as the unique physical properties of lunar  soil, pose significant challenges for deep sampling of lunar soils. A 3-D  model of the moon-soil-drilling interaction has been constructed and the  smoothed particle hydrodynamics method in the non-linear finite element  analysis software ABAQUS was used to examine the effects of four different  drilling speeds (8.37 rad/s, 10.47 rad/s, 12.56 rad/s, and 14.66 rad/s) on  the drilling performance. The simulation results indicate that as the  rotation speed increases, the efficiency of core extraction from the lunar  soil improves and the force load on the drill decreases. At a rotation speed  of 12.56 rad/s, the transport effect of the lunar soil particles is optimal.