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With the continuous advancement of human probe of the moon, the development and utilization of lunar mineral resources for lunar base construction and subsequent space exploration have become new hopes and new topics. Based on the hypothesis of spring-damping between particles, this paper establishes a dynamic model for the interaction between lunar soil particles. Using the method mentioned above, discrete element models for the interaction between particles and the excavator wheel are established. The EDEM discrete element simulation software is employed to analyze the impact of different slip rates on the forces acting on the excavator wheel and its excavation efficiency. By comparing simulation results, it is concluded that with an increase in slip rate, the forces and torque acting on the excavator wheel decrease, while the change in slip rate has an insignificant impact on excavation efficiency. This conclusion can guide the optimization of excavator wheel design and the selection of parameters such as speed.

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Research on the Interaction Mechanism Between the Excavation Wheel and Lunar Soil Based on the Discrete Element Method

  • 会议论文

  • 发表日期：

    2025年

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  • Shijing He,
  • Peng Zhang,
  • Zhi Wang,
  • Minying He,
  • Yuchen Zhang,
  • Hanzhe Yang

摘要

With the continuous advancement of human probe of the moon, the development and utilization of lunar mineral resources for lunar base construction and subsequent space exploration have become new hopes and new topics. Based on the hypothesis of spring-damping between particles, this paper establishes a dynamic model for the interaction between lunar soil particles. Using the method mentioned above, discrete element models for the interaction between particles and the excavator wheel are established. The EDEM discrete element simulation software is employed to analyze the impact of different slip rates on the forces acting on the excavator wheel and its excavation efficiency. By comparing simulation results, it is concluded that with an increase in slip rate, the forces and torque acting on the excavator wheel decrease, while the change in slip rate has an insignificant impact on excavation efficiency. This conclusion can guide the optimization of excavator wheel design and the selection of parameters such as speed.