破片式战斗部破片与冲击波相遇位置研究  

Meeting Location of Fragment and Shock Wave from Blast Fragmentation Warhead

作　　者：陈兴 周兰伟 李向东[1] 胡诤哲 张瑞 CHEN Xing;ZHOU Lanwei;LI Xiangdong;HU Zhengzhe;ZHANG Rui(Mechanical Engineering Institute,Nanjing University of Science and Technology,Nanjing 210094,China)

机构地区：[1]南京理工大学机械工程学院,江苏南京210094

出　　处：《高压物理学报》2018年第6期74-82,共9页Chinese Journal of High Pressure Physics

摘　　要：为研究破片式战斗部爆炸后破片和冲击波两种毁伤元的相遇位置,先通过ANSYS/LS-DYNA对破片式战斗部的爆炸过程进行数值计算,再通过试验的方法测量破片和冲击波相遇位置,验证了数值计算方法的合理性。在此基础上,分析了装填系数、破片质量、爆速和爆热对相遇位置的影响。结果表明:随着装填系数、破片质量、爆速和爆热的增加,相遇位置减小;装填系数增加31%,相遇位置距爆炸中心的距离减小11.5%;单枚破片质量增加1倍,相遇位置距爆炸中心的距离减小2.4%。In order to study the meeting location of fragments and shock waves after fragmentation warhead explosions,ANSYS/LS-DYNA was first used to numerically calculate the explosion process of the fragmented warhead,and then the location where fragments meet shock wave was experimentally determined,validating the numerical method.On the basis of above results,the influence of k,m,Q V and Q T on the meeting location was analyzed.The results show that the meeting location decreases with the increase of k,m,Q V and Q T.More precisely,the k increases by 31%,the distance between the meeting position and the explosion center decreases by 11.5%,the m is doubled,and the distance between the meeting position and the explosion center is reduced by 2.4%.

关 键 词：破片式战斗部 破片 冲击波 相遇位置 

分 类 号：O382.1[理学—流体力学]