Design of Projectile Recovery Device Based on LS-DYNA Simulation

Abstract:
In order to recover the projectiles non-destructively, based on the simulation results of the finite element software LS-DYNA, a projectile recovery device was designed. In LS-DYNA, a simulation model of the projectile penetrating into the liquid medium is established, the model parameters are set and solved, and the trajectory of the projectile at different densities, the velocity attenuation graph and the curve of the projectile overload over time are obtained. The results show that: the smaller the density of the liquid medium, the more stable the trajectory of the projectile, but the slower the velocity attenuation; when moving in a denser medium, the velocity of the projectile will be significantly attenuated; the density of the liquid medium will affect the overload of projectile, thereby affecting the performance of the projectile. The simulation results can provide a reference for the design of the projectile recovery device to achieve the goal of nondestructive recovery of projectiles.