弹目交会条件下爆炸驱动结构体的展开过程研究  

Research on the Deployment Process of Explosive-Driven Structures under the Condition of Projectile-Target Rendezvous

作　　者：宁建国[1] 汪齐 栗建桥[1] NING Jianguo;WANG Qi;LI Jianqiao(State Key Laboratory of Explosion Science and Safety Protection,Beijing Institute of Technology,Beijing 100081,China)

机构地区：[1]北京理工大学爆炸科学与安全防护全国重点实验室,北京100081

出　　处：《高压物理学报》2025年第1期1-16,共16页Chinese Journal of High Pressure Physics

基　　金：国家自然科学基金(12032006,12172054)。

摘　　要：复杂结构在爆炸驱动作用下的展开是展开型定向战斗部定向过程中的关键问题,对展开过程进行有效控制,有利于战斗部的起爆延时控制和破片利用率提高。针对复杂结构体的展开问题,基于JWL状态方程和第二类拉格朗日方程,从能量守恒出发推导了考虑爆轰产物膨胀过程和对目标命中状态的爆炸驱动展开模型。将驱动展开模型计算结果与文献实验结果进行对比,验证了爆炸驱动展开模型计算结果的准确性。结果表明,基于该模型的理论计算结果与实验结果的一致性较好,能较为精确地预测不同装药量下结构的展开时间;将辅助装药1与辅助装药2的质量比控制在1.5~1.7,结构体展开可达最佳命中姿态,更有利于命中目标。研究成果可充实定向战斗部设计理论,为展开型定向战斗部的设计提供参考。The deployment of complex structures under explosive driving is a key issue in the directional process of deployable directional warheads.Effectively controlling the deployment process is beneficial for controlling the detonation delay and improving the utilization rate of fragments.For the deployment problem of complex structures,based on the JWL equation of state and the second-order Lagrange equation,an explosive driving deployment model considering the expansion process of detonation products and the target hit state is derived from energy conservation.The calculation results of the driving deployment model are compared with the experiment results in the literature,and the accuracy of the calculation results of the explosive driving deployment model is verified.The results show that the theoretical results of the model are in good agreement with the experiment results,and can accurately predict the deployment time of structures under different charge amounts.By controlling the mass ratio of auxiliary charge 1 to auxiliary charge 2 at 1.5−1.7,the structure can be deployed to achieve optimal hit posture,which is more conducive to hitting the target.The research results can enrich the design theory of directional warheads and provide a reference for the design of deployable directional warheads.

关 键 词：爆炸驱动 展开姿态 展开时间 辅助装药 定向战斗部 

分 类 号：O313.3[理学—一般力学与力学基础] TJ410.3[理学—力学] O521.9[兵器科学与技术—火炮、自动武器与弹药工程]