侵彻弹体局部结构优化设计方法

Optimization of a Partial Projectile Structure of the Penetration Warhead

针对侵彻弹体结构优化设计中存在的主要问题,提出了一种侵彻弹体局部结构自动优化方法,实现了侵彻弹体结构设计方案初步优选和关键局部结构自动优化。采用基于DOE分析的材料参数调试方法,调试获得了弹体侵彻混凝土数值模拟所需全部参数,并进行了试验验证。结果表明,材料参数在精度上满足要求;对某型弹体的头部进行了自动优化,优化结果可使弹体头部设计更加合理,弹体所受阻力减小,过载变小,靶后余速变大,侵彻能力变强。

The optimization is a key issue for the penetrating projectile. This paper proposes an auto optimization method for a partial projectile structure of the penetration warhead. The preliminaly optimization of the projectile structure and the auto optimization of a partial projectile structure are realized. With the DOE debugging method, all material parameters in the simulation model used in the numerical simulation for the projectile penetrating concrete are obtained. The numerical simulation results are compared with the experiment, and it is found that the material parameters have the desired precision. The auto optimization method is used to design the nose section of the projectile, which improves the nose section design, reduces the resistance and the acceleration of the projectile, and increases the residual velocity and the penetration ability.