基于弹-靶参数匹配的侵彻多层目标引信载荷特性分析  

Analysis of Load Characteristics of Fuze during Penetrating a Multi-layer Target Based on the Matching Relation of Projectile and Target

作　　者：刘波[1] 程祥利 杨荷[1] 赵慧[1] 吴学星 刘涛 LIU Bo;CHENG Xiangli;YANG He;ZHAO Hui;WU Xuexing;LIU Tao(Institute of Electronic Engineering,China Academy of Engineering Physics,Mianyang 621999,Sichuan,China)

机构地区：[1]中国工程物理研究院电子工程研究所,四川绵阳621999

出　　处：《兵工学报》2024年第7期2240-2250,共11页Acta Armamentarii

摘　　要：为了更准确地分析侵彻多层目标过程中引信的载荷特性,通过空腔膨胀理论和微分面元法分析不同侵彻多层目标工况下的弹-靶作用力特性,结合应力波波动方程分析弹-靶作用力在弹体内的传播特性及弹-引系统频响特性,综合两方面结果揭示侵彻速度与靶间距决定的弹-靶作用力基频、弹-引系统结构决定的频响特性二者之间的关系决定了引信的载荷特性。弹-引系统的有限元仿真及试验测试结果进一步证明,高速侵彻多层目标条件下引信的频响特征不是固定地集中在某一频率,当弹-引系统的某1阶轴向振动固有频率与弹-靶作用力基频的整数倍相近时,引信载荷频响特征将在该阶轴向振动固有频率附近出现明显的集中。侵彻多层目标过程中弹-靶参数对引信载荷特性的影响分析对引信起爆控制算法及防护设计具有重要的指导意义。To accurately analyze the load characteristics of fuze in the process of penetrating a multi-layer target,the characteristics of projectile-target forces under different working conditions of penetrating a multi-layer target are analyzed by cavity expansion theory and differential panel method.The propagation characteristics of projectile-target force in the projectile body and the frequency response characteristics of warhead-fuze system are analyzed based on the stress wave propagation equation.The two analyzed results show that the relationship between the fundamental frequency of projectile-target force determined by penetration speed and target spacing and the frequency response characteristics determined by the structure of warhead-fuze system determines the load characteristics of fuze.The finite element simulation and test results of warhead-fuze system further prove that the frequency response curve of fuze under the condition of high-speed penetration into multi-layer target is not fixedly concentrated at a certain frequency.When the natural frequency of a certain order of axial vibration of warhead-fuze system is close to the integral multiple of the fundamental frequency of projetile-target force,the frequency response curve of fuze load is obviously concentrated near the natural frequency of this order of axial vibration.The analysis of the influence of projectile-target parameters on the load characteristics of fuze in the process of penetrating a multi-layer target has important guiding significance for fuze initiation control algorithm and protection design.

关 键 词：侵彻引信 弹-靶参数 引信载荷 特性分析 

分 类 号：TJ43[兵器科学与技术—火炮、自动武器与弹药工程]