药型罩形状对活性聚能侵彻体成型的影响  

The Influences of Liner Shape on the Formation of Reactive Shaped Charge Penetrator

作　　者：孙韬[1] 袁盈 郑元枫 余庆波[1] 陈鹏万[1] 王海福[1] SUN Tao;YUAN Ying;ZHENG Yuanfeng;YU Qingbo;CHEN Pengwan;WANG Haifu(State Key Laboratory of Explosion Science and Technology,Beijing Institute of Technology,Beijing 100081,China)

机构地区：[1]北京理工大学爆炸科学与技术国家重点实验室,北京100081

出　　处：《北京理工大学学报》2024年第4期327-335,共9页Transactions of Beijing Institute of Technology

基　　金：国家自然科学基金面上项目(12172052);国家自然科学基金重点项目(12132003)。

摘　　要：结合理论与数值模拟,对3种不同形状药型罩活性聚能侵彻体的成型行为开展了研究.数值模拟结果表明,在聚能效应下,球缺罩和大锥角圆锥罩形成尾部带有碎片云的类杆状活性聚能侵彻体,而小锥角圆锥罩则形成活性射流.相比于活性射流,类杆状活性聚能侵彻体速度较低,但凝聚性较好.进一步结合活性材料反应动力学方程,对活性聚能侵彻体成型激活反应行为进行分析.分析结果表明:活性射流激活区位于杵体外壁、射流头部和轴线附近;随炸高增加,激活区内活性材料反应不断加剧,特别是射流头部和轴线附近材料的反应,将导致活性射流膨胀发散,不利于侵彻;而类杆状活性聚能侵彻体激活区域主要集中在尾部碎片区和杆尾中心部位,化学反应对其影响相对较小.The formation behaviors of reactive shaped charge penetrator with three different shapes of liner were investigated by theoretical analysis and numerical simulation.The simulation results show that under the shaped charge effect,spherical segment and large cone liners form rod-like reactive shaped charge penetrators with debris cloud around the tail,while small cone liners form reactive jet.Compared with reactive jet,the rod-like reactive shaped charge penetrator has a lower velocity but better cohesiveness.The activation of the reactive shaped charge penetrator was analyzed based on the reaction rate equation of the reactive material.It shows that in the reactive jet,the activation zones of reactive jet are distributed in the external wall,jet head and axis of the jet.With the increase of standoff,the reaction extent of reactive materials in the activation zone increases,especially near the jet head and around the axis.This will lead to the expansion and divergence of reactive jet,resulting in the decrease of penetration depth.But for rod-like reactive shaped charge penetrators,the reactive regions mainly concentrate in the tail fragment zone and the central part of the rod tail,so the chemical reaction has relatively little influence on their penetration.

关 键 词：活性材料 聚能装药 射流 药型罩 成型行为 

分 类 号：TJ410.1[兵器科学与技术—火炮、自动武器与弹药工程]