组合药型罩水介质中成型的数值仿真  

Numerical Simulation of Combined Liner Formation in Water

作　　者：傅磊[1] 王伟力[1] 李永胜[1] 姜颖资[1] 

机构地区：[1]海军航空工程学院兵器与科学技术系,山东烟台264001

出　　处：《鱼雷技术》2015年第5期367-373,共7页Torpedo Technology

摘　　要：为提高鱼雷战斗部对大型舰艇的毁伤能力,提出一种环型-球缺/大锥角组合药型罩作为鱼雷串联战斗部的前级装药结构,其结构由周向的环型药型罩与中心的球缺罩或大锥角罩组合而成。利用LS-DYNA有限元软件对组合药型罩水介质中的成型机理进行研究,对比分析2种起爆方式下锥角及曲率半径对中心聚能罩水中成型的影响。仿真结果显示,环型罩在水中可形成环形射流,用于目标外壳体切割;中心罩结构变化对环型罩射流成型影响不大,中心截顶大锥角罩形成的杆式射流形态细长,头部速度较高;球缺罩形成的杆式侵彻体较为粗短,速度梯度较小。To enhance damage effect of torpedo warhead on large warship, a combined liner with annular-spherical segment/large cone angle structure is taken as the front charging chamber of the torpedo tandem warhead. The combined liner is composed of an annular liner around and a spherical segment liner or a large cone angle liner in the center. The formation mechanism of the combined liner in water is analyzed by the software LS-DYNA. The influences of the cone and curvature radius on the formation of the central liner in water are investigated in two priming modes. Simulation results show that： the annular liner forms annular jet in water to cut first layer of target shell; the change of central liner structure has little influence on jet formation of the annular liner; the long and the thin rod-liked jet formed by the central large cone liner has a high head velocity, while the rod-liked penetrator formed by the central spherical segment liner has a short and thick shape and relatively small velocity gradient.

关 键 词：鱼雷战斗部 药型罩 数值仿真 

分 类 号：TJ630.2[兵器科学与技术—武器系统与运用工程] TJ410.4