舰炮半穿甲模拟弹对金属靶板斜侵彻研究

Ship gun is one of the main weapons for attacking the targetsat sea, air and shore, and the penetration ability of semi-armor-piercing projectile for ship gun is an important index of evaluating its damage ability. Carrying out live-ship firing test is costly and lack of opportunities. In order to study the penetration ability of naval gun semi-armor-piercing projectile, a semi-armor-piercing simulation projectile is designed by referring to OTO Melara 127 mm ammunition used by US MK-45 naval gun. On the basis of experiment, numerical simulation and empirical formula, the damage mode and crevasse size of target plate are analyzed. The experimental results show that, under the two plate inclination angles of 45° and 60° and two target velocities of 385 m / s and 500 m / s, the semi-armor-piercing simulation projectile has sufficient penetration ability to 12 mm thick E36 steel plate, and the damage mode of simulation projectile to target plate is a thrust destruction. The average size of the crevasse is 1.25 times the diameter of the projectile. The simulated results show that the calculated results including the residual velocity and breach are reasonably agreed with the experimental results. The calculated results of Thor’s formula are relatively close to the experimental results. After parameter optimization, the residual velocity error obtained by the experiment, empirical formula and simulation does not exceed 10% .