Calculation Model and Method of Target Damage Efficiency Assessment Based on Warhead Fragment Dispersion

There are many uncertain information and incompleteness factors on warhead fragments dispersion and the self-destructive factors of target damage. It is very difficult to scientifically give a target damage efficiency assessment calculation method of a proximity warhead fragments group. This article proposes a warhead fragments dispersion parameters' measurement method using the intersection of two light-field cameras and a target damage efficiency assessment calculation method with a multiparameter correlation of warhead fragments dispersion under uncertain information. We research a correlation mechanism between warhead fragments parameters and target damage efficiency. Warhead fragments parameters are combined with the projectile burst location to establish a distribution density function under warhead fragments dispersion with uncertain information. The point trajectory rules of warhead fragments are utilized to set up the spatial position calculation model of warhead fragments hitting the 3-D surface of the target to give the calculation method of the target damage area caused by proximity warhead fragments. The damaged area combined with the damage characteristics of the target itself is used to establish a damage probability calculation model of warhead fragments dispersion to the target under the multi-intersection status of the projectile and target. Simulation analysis reveals the change rule of proximity warhead fragments parameters and target damage efficiency. Experimental results verified the calculation model of target damage efficiency of warhead fragments with uncertain information scientific. These research achievements can provide a scientific theory foundation for ammunition safety measurement, air defense campaign efficiency assessment, and smart ammunition damage efficiency assessment and have high scientific theory research value.