无限水域中壳体对爆破型战斗部爆炸威力的影响研究

Research on Effects of Shell on Brisance of Blasting Warhead in Infinite Water Area

摘要:

基于战斗部水中爆炸威力评估方法,选取某型爆破型战斗部为研究对象,通过建立有效的爆破型战斗部有限元模型,设计出科学合理的仿真计算工况,利用 ALE 方法分析研究无限水域中壳体对爆破型战斗部爆炸威力的影响。 结果表明:壳体对爆炸威力的影响呈现出振荡衰减特性,且爆距越近振荡越大,爆距越远衰减越明显;壳体密度越大振荡越大,衰减越大。 可为水中兵器爆炸威力设计与评估提供参考。

关键词:壳体;战斗部;爆炸威力;仿真评估

Abstract:

Based on evaluation method of warhead’s brisance in underwater explosion, a blasting warhead is chosen as the study object. This paper designs the scientific working condition of simulating calculation through establishing effective finite ele- ment model of blasting warhead, and analyzes and studies effects of shell on brisance of blasting warhead in infinite water area using ALE method. The results show that the effect of shell on brisance has characteristics of oscillation and attenuation. The nearer the explosion, the greater the oscillation; the faster the explosion, the greater the attenuation; the larger the density of shell and the os- cillation, the greater the attenuation. The research can provide reference for the design and assessment of underwater weapon’s bri- sance.

Key words:shell; warhead; brisance; simulation and evaluation