两端起爆下曲率药型罩线性装药的成型特性（英文）  

Forming Characteristics of Linear Charge with Curved Liner under Two-end Initiation

作　　者：陈曦[1] 刘杰[2] 杜忠华[1] 王康康[1] CHEN Xi;LIU Jie;DU Zhong-hua;WANG Kang-kang(School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China;Guilin University of Electronic Technology,Guilin Guangxi 541004,China)

机构地区：[1]南京理工大学机械工程学院,江苏南京210094 [2]桂林电子科技大学,广西桂林541004

出　　处：《火炸药学报》2018年第5期441-446,共6页Chinese Journal of Explosives & Propellants

基　　金：The National Natural Science Foundation of China(No.11802141;No.11772160)

摘　　要：为提高线性爆炸成型弹丸(LEFP)的威力,设计了一种带曲率结构的药型罩线性成型装药。采用数值模拟方法研究了两端起爆下LEFP成型过程及曲率半径对其影响规律,并进行了脉冲X光试验。结果表明,两端起爆时爆轰波对碰,使爆轰波有效地向LEFP运动方向汇聚,有利于曲率药型罩闭合,但曲率半径越大,越难闭合。LEFP稳定时形态良好,头部速度可达2 100m/s,药型罩利用率约87%,试验结果验证了两端起爆下曲率药型罩线性装药形成大威力LEFP的可行性和有效性。To improve the power of a linear explosively formed penetrator(LEFP),a new type of linear charge with curved structure was designed.Under a two-end initiation,the forming process of LEFP and influences of curvature radius on the process were investigated by numerical simulation method and a pulse X-ray photography experiment was carried out.The results show that the detonation wave collides under the two-end initiation,which causes the detonation wave to effectively converge toward the direction of LEFP movement and is beneficial to the closure of the curved liner.However,the larger the curvature radius,the harder the closure.LEFP is in good shape when it is stable,and the head velocity and utilization can reach 2 100 m/s and 87%,respectively.The test results verify the feasibility and effectiveness of the formation of a high-power LEFP for a linear charge with curved liner under the two-end initiation.

关 键 词：线性成型装药 曲率药型罩 爆轰波对撞 两端起爆 线性爆炸成型弹丸 LEFP 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术] TJ410.333