High-Velocity Metal Fragment: Motion Characteristic and Optimization Design

This present work suggests a charge technique to produce super high-velocity fragment (≥2350 m/s) using 30 mm launching system. The steel cylindrical fragments with Brinell hardness HB ≤ 270 are designed according STANAG 4496 in the experiment, and test system including interval speed measuring device, pressure measurement high-speed camera is employed obtain information on velocity, muzzle field of fragment. flame characteristics presents an increasing area, escapes control when flying out muzzle. Moreover, projectile sabot can timely be separated from range first velocity device. Based this, mathematic models interior ballistic process movement established analyze effects various structures motion characteristic Comparisons chamber computational results performed experimental studies. A reasonable match has been obtained these comparisons. Further, discussion choice parameters by optimization design for this