Optimal Kill Performance of an Oblique Placed Tandem Warhead for Anti-Aircraft High Explosive Projectile

The lethality of the warhead of ordinary anti-aircraft high explosive projectile can be easily influenced by various factors, resulting in a large dispersion of fragments and low utilization efficiency of a single projectile. To increase the kill efficiency of an explosive projectile, an oblique placed tandem warhead is presented, namely, two (or more) grains are set in the direction of an offset angle between the axis of warhead and the axis of projectile and the direction of the axis of projectile, respectively, destroying the target with prefabricated fragments and natural fragments. Combined with interception model and damage model of the oblique placed tandem warhead, a mathematical method of calculating kill probability of a single projectile based on the optimal interception and damaging a definite target is derived. By Monte Carlo method, simulation analysis is done on an improved 122mm projectile with the presented oblique placed tandem warhead in contrast with AHEAD projectile and ordinary 122mm projectile in the aspects of intercept probability and kill probability. Results show that target distance has a significant influence on kill probability; In addition, the impact of velocity of target and protected distance is relatively less.