大口径榴弹自然破片形成过程  

Formation of Natural Fragments from Large Caliber Shells

作　　者：黄经伟[1] 李文彬[1] 郑宇[1] 陈伟[1] 

机构地区：[1]南京理工大学智能弹药技术国防重点学科实验室,南京210094

出　　处：《兵工自动化》2013年第11期20-23,共4页Ordnance Industry Automation

基　　金：国家自然科学基金(51278250)

摘　　要：为获得典型大口径常规战斗部自然破片质量分布、破片初速等变化规律,利用水井爆炸装置,对某155 mm大口径榴弹自然破片的形成过程进行了破碎性试验研究,并与Mott公式预测计算结果进行了对比;同时基于Stochastic随机失效模型,采用AUTODYN软件对试验榴弹自然破片形成过程作进一步仿真模拟,获得了破片质量分布、破片初速等变化规律。仿真结果表明:4 g以上的破片数量与试验结果吻合较好,总体分布趋势基本完全一致,4 g以下的破片数量存在误差。In order to obtain the regular patterns of the natural fragments quality distribution and initial velocity of large caliber typical conventional warheads, using water well explosive device, several static detonating tests of 155 mm caliber shells was studied, and compared with the forecast results calculated by Mott formula. Moreover, based on Stochastic failure models, using AUTODYN software further simulated the formation of natural fragments referred to the test shells, the regular patterns of the fragment quality distribution and initial velocity were got. It was found that the whole tendency between the two was mainly fit, especially, the number of the large quality area （≥4 g） was quite agreement with each other, but there were some errors in small quality area（≤4 g）.

关 键 词：大口径榴弹 破碎性试验 自然破片 仿真模拟 

分 类 号：TJ410.6[兵器科学与技术—火炮、自动武器与弹药工程]