Research on the mechanical characteristics of the Z-type target plate of the warhead entirely penetrating the ship simulation structure

Abstract

The anti-ship missile warhead must enter the ship’s deep interior in order to achieve the satisfied damage effect. However, the ship’s hull is crisscrossed, which results in far more complex mechanical characteristics of the warhead than that of the parallel target. In order to study the mechanical characteristics of warhead penetrating into the complex structure of a real ship, the complex structure of the ship is simplified as a kind of Z-shaped composite target plate, and the mechanical characteristics of the warhead penetrating into the Z-shaped target plate in a complex attitude are analyzed by using the momentum theorem. Based on the Timoshenko beam theory, the motion equation of the combat part is derived and the theoretical solution is obtained. The attitude change and mechanical properties of warhead penetrating into each stage of Z-shaped target are simulated by LS-DYNA software. The analysis results show that the transverse load of the warhead penetrating Z target is about 2–3 times higher than that of the parallel target, and the movement mode of the warhead is also significantly changed. The Z target can better reflect the complex structural characteristics of the ship than the parallel target, and can provide a reference for the design of the warhead penetration test target. warhead Z-type target plate, mechanical