Revealing the mechanism of the force dragging the soft bag in the dynamic process of deep soil coring

A tubular soft bag covering a rigid tube, known as a coring system, is a key tool in deep lunar soil coring. The dynamic performance of the coring system is of critical importance, largely determining the quality and efficiency of the lunar soil coring. The main contribution of this study focuses on analyzing the mechanism of the force dragging the soft bag in the dynamic process of the simulated lunar soil coring analytically, numerically and...