Basic Evolution Characteristics of Oblique Penetration of Projectile against Hard Target

Baihan CHEN; Zikai SHEN; Huihui ZOU; Weiguang WANG; Kehui WANG

doi:10.12382/bgxb.2023.0865

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Basic Evolution Characteristics of Oblique Penetration of Projectile against Hard Target

更新时间：2025-08-18

- Basic Evolution Characteristics of Oblique Penetration of Projectile against Hard Target
- Acta Armamentarii Vol. 44, Issue S1, Pages: 59-66(2023)
- 作者机构：
  
  1. 清华大学工程物理系, 北京 100084
  2. 西北核技术研究所, 陕西西安 710024
- 作者简介：
- 基金信息：
- DOI：10.12382/bgxb.2023.0865
  CLC：
- Received：01 July 2023，
  
  Published Online：03 January 2024，
  
  Published：08 December 2023
- 稿件说明：
移动端阅览
Baihan CHEN, Zikai SHEN, Huihui ZOU, et al. Basic Evolution Characteristics of Oblique Penetration of Projectile against Hard Target[J]. Acta Armamentarii, 2023, 44(S1): 59-66.
DOI：

Baihan CHEN, Zikai SHEN, Huihui ZOU, et al. Basic Evolution Characteristics of Oblique Penetration of Projectile against Hard Target[J]. Acta Armamentarii, 2023, 44(S1): 59-66. DOI： 10.12382/bgxb.2023.0865.

摘要

为归纳已有硬目标内弹体斜侵彻受力和运动模型的普遍模式

基于刚性弹假设和弹靶分离思想

将弹体侵彻硬目标的过程视为侵彻力场中的运动。依据侵彻力场的时间平移不变性和关于正侵彻的对称性

推导了不依赖具体受力模型的弹道稳定性和弹体状态参数演化的共有规律。具体地

在正侵彻工况下、弹体完全侵入硬目标时

给出了弹体运动稳定性判据;在斜侵彻工况下或弹体不完全侵入硬目标时

也给出了弹体运动平衡性与稳定性判据的数值求解方法。上述判据均表明弹体速度、角速度和攻角对于弹体侵彻状态演化有重要影响

而攻角的影响最为显著。此外

对于侵彻过程中的任意时刻

还依据分析力学方法证明了侵彻状态演化的封闭性。上述关于弹体运动平衡性、稳定性和状态演化封闭性的推导具有通用性质

可为侵彻试验和仿真工况的设计提供指导。

Abstract

To summarize the general patterns of force and motion models for oblique penetration of projectiles

the penetration process of projectile against hard targets is regarded as the motion in the penetration force field based on the assumption of rigid projectile and the idea of projectile-target separation. The common law of ballistic stability and state-parameter evolution of projectile

which is independent of force models’ form

is derived based on the time translation invariance of force field and the symmetry of normal penetration. Specifically

a criterion for the motion stability of projectile in the case of normal penetration and the projectile completely penetrating in hard target can be given. The numerical solution methods for the balance and stability criteria of projectile motion in the case of oblique or incomplete penetration

are also provided. All types of criteria indicate that the penetration velocity

angular velocity

and angle of attack have the important significant impacts on the evolution of penetration state

where the angle of attack has the most significant impacton the evolution of penetration state. In addition

for any moment during the penetration process

the closeness of the penetration evolution is also proven with analytical mechanics method. The derived characteristics of projectile motion can provide guidance for the design of penetration test and simulation.

关键词

Keywords

references

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