Design and coring performance analysis of handheld and machine-based composite lunar soil coring device

Sampling and exploration of the Moon is an important means of further developing lunar resources and is of great significance in solving future problems such as the shortage of resources on Earth. Facing the increasingly complex mission requirements and challenges of the lunar exploration project, a composite multifunctional coring device capable of sampling deeper on the lunar surface is needed. Therefore, this paper innovatively proposes a lunar soil coring device program, aiming to research deep stratigraphic preservation sampling technology. The design of this coring device combines the advantages of handheld and machine-based methods to improve coring efficiency. In addition, coring simulation experiments of lunar soil particles based on the discrete element method (DEM) clarified that the assisted impact can improve the coring performance of the device to a certain extent. Finally, according to the designed coring device to construct the corresponding test platform, analyze the influence of different coring methods on the coring performance of the device. Meanwhile, the research results of this paper can provide theoretical and technical support for the subsequent lunar sampling exploration program.