摘要
针对多点同步起爆网络在杆式EFP成型装药上的应用问题,利用LS-DYNA有限元软件仿真研究了多点起爆参数对杆式EFP成型参数的影响规律,并利用X光试验验证了数值模拟方法的有效性。结果表明:选择3点起爆方式可以减小杆式EFP头部断裂的风险,同时避免因起爆点数量增加带来的系统起爆误差增大;控制最大起爆同步误差在200ns以内可保证形成的杆式EFP成型规则并具有一定侵彻能力。
To investigate the application of a multi-point initiation explosive network to a rod-shaped explosively formed projectile(EFP)shaped charge,LS-DYNA software was used to investigate the effects of the control parameters for the multi-point initiation on the performance of the rod-shaped EFP.The effectiveness of the numerical simulation method was verified by an X-ray test.Results indicate that selecting three-point initiation mode can reduce the breakage risk of the rod-shaped EFP nose,and avoid the increasing of system initiation synchronicity error caused by the increase of the number of initiation points.It is noted that a better rod-shaped EFP formation can be obtained when the synchronicity error is less than 200ns.
作者
李瑞
汪泉
洪晓文
李伟兵
李文彬
LI Rui;WANG Quan;HONG Xiao-wen;LI Wei-bing;LI Wen-bin(School of Chemical Engineering,Anhui University of Science and Technology,Huainan,232001;Ministerial Key Laboratory of ZNDY,Nanjing University of Science and Technology,Nanjing,210094;Inner Mongolia Metal Material Research Institute,Yantai,264003)
出处
《火工品》
CAS
CSCD
北大核心
2022年第1期38-42,共5页
Initiators & Pyrotechnics
基金
安徽理工校级重点项目(xjzd2020-08)
安徽理工大学博士引进人才基金项目。
关键词
爆炸成型弹丸(EFP)
多点同步起爆
起爆同步误差
大长径比
Explosivelyformedprojectile(EFP)
Multi-point initiation
Initiation synchronicity error
Largelength-to-diameterratio
