SIMULATION OF PENETRATOR MOVEMENT DYNAMICS AT THE CONTACT WITH THE GROUND OF THE PLANET ON THE SHOCK TABLE

Abstract

The paper deals with the actual problem of studying the lunar surface for the creation of an inhabited station, as well as the prevention of an asteroid hazard, including due to the drilling of wells up to a depth of ten meters. In connection, it is advisable to use the solid fuel rocket engine as a booster of a shock table. This rocket engine provides a study of the behavior of the model and the natural sample under the action of accelerations reaching 50-200, and the speed of sample input into the ground to 100-1500 m/s during overclocking. Penetrating probes (penetrators) are tested as a model, and can be presented in different designs: inertial, single- and multi-module with solid fuel rocket engines. Penetrators with solid fuel rocket engines have a number of advantages, the main of which are high power-to-weight ratio with minimal weight, reliability and simplicity of the system. The paper considers an algorithm for calculating the energy characteristics of the accelerating system with a solid fuel rocket engine, and proposes a schematic diagram of the shock table for penetrator research. The analysis was carried out and the parameters of the solid fuel rocket engines were determined to ensure that the samples were studied in the required range of changes in the acceleration and the speed of input into the ground. Moreover, the technique and technology of conducting experiments and studies of the motion of penetrators in model soils are given, taking into account the safety of testing. The recommended installation for working out penetrators is designed for research in a wide range of changes in the rates of sample input into the soil.