The contact force between lunar-based equipment and lunar soil
Zheng-Han Chen,
Zhao-Dong Xu,
Hong-Fang Lu,
Deng-Yun Yu,
Jian-Zhong Yang,
Bo Pan,
Xue-Liang Zhao,
Zhong-Wei Hu
Affiliations
Zheng-Han Chen
China-Pakistan Belt and Road Joint Laboratory on Smart Disaster Prevention of Major Infrastructures, Southeast University, Nanjing 210096, China
Zhao-Dong Xu
China-Pakistan Belt and Road Joint Laboratory on Smart Disaster Prevention of Major Infrastructures, Southeast University, Nanjing 210096, China; Corresponding author
Hong-Fang Lu
China-Pakistan Belt and Road Joint Laboratory on Smart Disaster Prevention of Major Infrastructures, Southeast University, Nanjing 210096, China
Deng-Yun Yu
China Aerospace Science and Technology Corporation, Beijing 100048, China
Jian-Zhong Yang
China Aerospace Science and Technology Corporation, Beijing 100048, China
Bo Pan
China Aerospace Science and Technology Corporation, Beijing 100048, China
Xue-Liang Zhao
China-Pakistan Belt and Road Joint Laboratory on Smart Disaster Prevention of Major Infrastructures, Southeast University, Nanjing 210096, China
Zhong-Wei Hu
China-Pakistan Belt and Road Joint Laboratory on Smart Disaster Prevention of Major Infrastructures, Southeast University, Nanjing 210096, China
Summary: Lunar-based equipment plays a vital role in the exploration of the moon because it undertakes the tasks of moving, transporting, digging, and so on. In order to control the gait of lunar-based equipment more precisely and guarantee mobile stability, the contact mechanism between its foot and lunar soil is worthy of in-depth study. In this paper, a contact model is proposed to predict the stress, strain, and displacement both on the contact surface and in the lunar soil when the foot is under vertical load. The axial stress in the proposed contact model is verified through the experiment and its accuracy in the lunar equipment is verified through simulation. The error is in a reasonable range and the influence depth of load conforms to the experiment results. This paper provides a relatively accurate model to describe the contact force between the lunar-based equipment’s foot and the lunar soil and will promote the research of lunar exploration.
