The planet Venus has specific conditions for the functioning of research vehicles on it – a dense and “aggressive” atmosphere, high temperature and pressure, strong winds. The penetrator probe, as a technical research tool, is a tool for collecting primary scientific information about the physico-chemical composition of the soil, studying seismic activity and climate, which will help in the best way to explore the soil of Venus. The possibility of using a penetrator probe to explore Venus is shown, an analysis of existing projects on this topic is carried out, and a prototype is selected on the basis of which it is possible to simulate ballistic descent in the atmosphere – this is the Mars-96 project, which included two penetrators in the spacecraft. A mathematical model of the motion of a penetrator probe in the atmosphere of Venus has been compiled, using which estimated calculations of a prototype with various mass and dimensional characteristics have been carried out. During the movement of the device in the atmosphere of the planet, it is affected by many disturbing factors, such as wind, turbulence, instrument error, etc., which must be taken into account in order to obtain correct data. In the course of the work, a mathematical model was compiled to account for wind disturbances and turbulence affecting the apparatus, as well as stochastic Monte Carlo descent modeling. Also, during the simulation, disturbances in the initial conditions associated with the measurement error of the instruments were taken into account. As a result of the study, graphs of the dependencies of the trajectory parameters (speed, trajectory angle, flight range, altitude, pressure amidships, etc.) were constructed, which showed that the probe has sufficient aerodynamic stability to ensure stable movement in the atmosphere of Venus. However, the calculated velocity values before contact with the surface are about 10 m/s, which is insufficient for penetration into the ground.

EDN RUNEGD