摘要
杀爆战斗部威力的数值模拟研究对分析杀爆战斗部的作战效果及毁伤效能有重要指导作用。为了研究装药中铝粉含量对杀爆战斗部威力的影响,建立了杀爆战斗部1/4简化缩比模型,以铝粉含量0%~30%的RDX基炸药为杀爆战斗部主装药,运用AUTODYN和LS-DYNA软件对杀爆战斗部的爆炸过程进行了数值模拟。结果表明:随着炸药中铝粉含量的增加,破片平均速度、破片数量、有效破片比例等破片威力参数呈现出先增大后减小的趋势,对于同一测点处的冲击波超压、正压作用时间、比冲量等冲击波威力参数也呈现出先增大后减小的趋势,表明铝粉含量存在一个临界值,当铝粉含量大于此临界值,杀爆战斗部威力将出现降低趋势,当铝粉含量为20%时杀爆战斗部威力最大。
The numerical simulation of blast-fragmentation warhead power plays an important guiding role in analyzing the combat effect and damage efficiency of blast-fragmentation warhead.In order to study the effect of aluminum powder content on the power of blast-fragmentation warhead,a simplified 1/4 scale model of the detonating warhead is established.The RDX-based explosive with 0%to 30%aluminum powder content is used as the main charge of the detonating warhead,and the explosion process of blast-fragmentation warhead is numerically simulated by AUTODYN and LS-DYNA software.The results show that:with the increase of aluminum powder content in explosives,the average fragment velocity,fragment quantity and effective fragment proportion of the explosive presented a trend of first increase and then decrease,and the shock wave power parameters such as shock wave overpressure,positive pressure action time and specific impulse at the same measuring point also present a trend of first increase and then decrease.The aluminum powder content has a critical value.When the content of aluminum powder is greater than the critical value,the power of blast-fragmentation warhead decreases and blast-fragmentation warhead has the greatest power when aluminum powder content is 20%.
作者
金智恺
常双君
董佳易
JIN Zhikai;CHANG Shuangjun;DONG Jiayi(School of Environment and Safety Engineering,North University of China,Taiyuan 030051,China)
出处
《兵器装备工程学报》
CAS
CSCD
北大核心
2023年第11期156-161,共6页
Journal of Ordnance Equipment Engineering
关键词
杀爆战斗部
数值模拟
含铝炸药
冲击波
破片
blast-fragmentation warhead
numerical simulation
aluminized explosive
shock wave
fragmentation
