Vertical Launch Trajectory Modeling and Range Influence Law of Shipborne Depth Charge

The vertical launch of shipborne depth charge can greatly improve platform adaptability and combat effectiveness, which is of great significance in improving the combat capability of ships. This paper took a vertical cold launch depth charge as the prototype and set up a vertical launch trajectory calculation model of depth charge according to the vertical launch kinematics and dynamics equations. Based on this model, the paper considered the projectile mass, total impulse, initial muzzle velocity, turning height, terminal angle of attack, pitch angle at the end of turning, lift coefficient, drag coefficient, and other influence factors and calculated and analyzed the influence of shipborne depth charge range. The results show that: 1) The range is positively correlated with the total impulse, initial muzzle velocity, turning height, terminal angle of attack, and lift coefficient, while it is negatively correlated with the projectile mass, pitch angle at the end of turning, and drag coefficient; 2) the projectile mass, total impulse, initial muzzle velocity, and pitch angle at the end of turning have great influence on the depth charge range, while the terminal angle of attack, lift coefficient, and drag coefficient have relatively little influence on the depth charge range. In addition, the turning height has almost no influence on the depth charge range. The simulation results can provide a reference for the overall vertical launch and trajectory design of the depth charge.