Page 4 - 《爆炸与冲击》2025年第5期
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第 45 卷 第 5 期 爆 炸 与 冲 击 Vol. 45, No. 5
2025 年 5 月 EXPLOSION AND SHOCK WAVES May, 2025
DOI：10.11883/bzycj-2024-0250
锯齿外形对弹体带攻角侵彻横向过载的影响 *
王 帅 ，邓志方 ，何丽灵 ，陈红永 ，李继承 ，颜怡霞 ，陈 刚 1,2
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（1. 中国工程物理研究院总体工程研究所，四川 绵阳 621999；
2. 工程材料与结构冲击振动四川省重点实验室，四川 绵阳 621999）
摘要： 为降低具有初始攻角的弹体在侵彻时产生的横向过载峰值，采用数值模拟方法，研究了一种带锯齿弹身的
新型钻地弹以非零攻角姿态侵彻混凝土靶体时其特有的横向降载效应和机理。考虑初始攻角、质心系数等的影响，以
常规光滑弹作为对比对象，分析了弹体运动规律、弹靶接触力、接触力矩、接触面积等。结果表明，在 1°、2°和 3°的小
初始攻角范围内，锯齿弹较光滑弹分别降低横向过载峰值约 30.6%、5.2% 和 11.3%，但相应的接触力矩的峰值和脉宽、
偏转角度等均有所增大。研究结果揭示了锯齿弹的横向降载机理：锯齿弹身减小了弹靶的接触面积，横向接触力主要
集中在弹身锯齿区靠近头部的前两个锯齿环槽的右锯齿上，使得锯齿弹身与靶的横向接触力减小，而非锯齿区（主要
是弹体头部）与靶的横向接触力增大，二者的竞争可增强锯齿弹整体的横向降载效果。通过结构设计等手段抑制锯齿
弹的弹道偏转后，可有效提升锯齿弹的横向降载效率。
关键词： 横向降载；攻角；锯齿弹；弹道偏转
中图分类号： O385 国标学科代码： 13035 文献标志码： A
Influence of serrated configuration on transverse overload of
the projectile penetrating with a small attack angle
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WANG Shuai , DENG Zhifang , HE Liling , CHEN Hongyong , LI Jicheng , YAN Yixia , CHEN Gang 1,2
（1. Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang 621999, Sichuan, China;
2. Shock and Vibration of Engineering Materials and Structures Key Laboratory of Sichuan Province,
Mianyang 621999, Sichuan, China）
Abstract: In the process of deep penetration of the earth penetration weapon (EPW) attacking the underground target, the non-
ideal penetration attitude with an initial attack angle is inevitable, which will introduce transverse overload with a large peak
value for the earth penetrator. It could damage some important components of the earth-penetrating projectile and reduce the
penetration efficiency of the projectile. Therefore, it is necessary to study the methodology of reducing the transverse overload
peak value of the earth-penetrating projectile. However, the previous research on the earth-penetrating projectile seldom
considered the influence of transverse overload, making it difficult to effectively reduce the transverse overload. In order to
overcome this problem, a numerical simulation method was used to study the special transverse overload shedding effect and
its mechanism of a new type of earth-penetrating projectile with a serrated configuration penetrating concrete targets at non-
zero attack angles. The influences of the initial attack angle and the coefficient of the center of mass of the projectile were
studied, and the motion, contact force, contact moment, and contact area of the projectile were analyzed using a conventional
smooth projectile for comparison. The results show that for small initial attack angles of 1°, 2° and 3°, the peak value of
transverse overload of the serrated projectile is reduced by about 30.6%, 5.2%, and 11.3%, respectively, compared to the
* 收稿日期： 2024-07-22；修回日期： 2024-11-28
基金项目： 国家自然科学基金青年科学基金（12302495）；四川省自然科学基金杰出青年科学基金（2023NSFSC1913）
第一作者： 王 帅（1989－ ），男，博士，助理研究员，wangshuaicaep@163.com
通信作者： 何丽灵（1984－ ），女，博士，副研究员，heliling1984@139.com
051001-1
