摘要
采用数值模拟方法研究了高速弹体冲击下孔结构金属装甲的抗弹能力,系统讨论了弹体冲击速度、入射角、弹着点、孔径、孔间距等因素对抗弹能力的影响。结果表明,在弹道极限速度附近,随着弹体冲击速度的增加,弹着点效应逐渐变得不明显;弹体垂直入射不对称弹着点时会出现明显偏转,而倾斜入射时即使在对称弹着点上也会出现明显的偏转现象;当弹体入射角度大于45°时,弹体剩余速度和侵彻深度出现较明显的下降,当入射角度大于65°时,出现弹跳现象。
In this paper,we numerically studied the ballistic resistance of the metal perforated armor to the high-velocity projectile,and analyzed in detail the effects of various factors on its ballistic resistance,including the impact velocity,the oblique angle,the hitting location and the size of holes.The results showed that the effect of hitting position decreases with the increase of the impact velocity near the ballistic limit.Both the normal impact at the asymmetric hitting position and the oblique impact at the symmetric hitting position result in the projectile yaw.The residual velocity of the projectile and the penetration depth decrease dramatically as the oblique angle is larger than 45°,and furthermore,the ricochet appears as the oblique angle is larger than 65°.
作者
秦庆华
崔天宁
施前
金永喜
张建勋
QIN Qinghua;CUI Tiannin;SHI Qian;JIN Yongxi;ZHANG Jianxun(State Key Laboratory for Strength and Vibration of Mechanical Structures, Shaanxi Engineering Laboratory for Vibration Control of Aerospace Structures, School of Aerospace,Xi an Jiaotong University,Xi an 710049,China;Science and Technology on Transient Impact Laboratory,No.208 Research Institute of China Ordnance Industries,Beijing 102202,China)
出处
《高压物理学报》
EI
CAS
CSCD
北大核心
2018年第5期133-141,共9页
Chinese Journal of High Pressure Physics
基金
国家自然科学基金(11572234,11502189,11372235)
瞬态冲击技术重点实验室基金(614260601010117)
陕西省自然科学基础研究计划(2017JM1020)。
关键词
孔结构金属装甲
高速冲击
侵彻
贯穿
弹道极限
metallic perforated armor
high-velocity impact
penetration
perforation
ballistic limit
