Numerical Analysis of Penetration of Planetary Penetrator

As a means of celestial body detection, high speed impact penetration detection has great scientific significance and research value. It can lay a key technical foundation for deep space exploration and space-based weapon system research in the future. These small penetrators are detached from the orbiter, typically hit the planet at a speed of a few hundred meters per second, to be able to send scientific instruments deep underground for scientific exploration. Therefore, it is necessary to analyze the penetration process of the penetrator. The cost of each planetary exploration is relatively high. It is obvious that the study of such scientific problems is mainly through numerical simulation of the process by computer. In this paper, the influence of landing velocity, incident angle and attack angle on the penetration process is analyzed by numerical simulation.