摘要
为研究穿甲弹斜侵彻钛合金靶板的极限跳飞角度及相关影响因素。开展了7.62 mm穿甲燃烧弹的弹道冲击试验,获取了弹体斜侵彻不同厚度、不同倾斜角度钛合金靶体的极限跳飞角度;同时利用有限元软件LS-DYNA对穿甲弹斜侵彻钛合金靶体进行数值模拟仿真,并与试验数据对比验证模型的有效性;随后讨论了靶板倾角与靶体厚度等因素对弹道性能的影响规律。结果表明:靶板倾角的增大有效降低了穿甲弹的穿甲能力,弹体贯穿后的剩余速度及姿态变化角随靶板倾角的增加而分别呈现非线性下降与上升的趋势;钛合金靶板的极限跳飞角度对靶板厚度敏感,极限跳飞角度随靶板厚度的增加而非线性下降。
Here,to study ultimate jump angle of armor-piercing projectile oblique penetrating titanium alloy target and related influencing factors,ballistic impact tests of 7.62 mm armor-piercing incendiary bomb were conducted to obtain ultimate jump angles of projectile body oblique penetrating titanium alloy targets with different thicknesses and angles of inclination.At the same time,the finite element software LS-DYNA was used to simulate oblique penetration of armor-piercing projectile into titanium alloy target,and the effectiveness of the model was verified by comparing simulation results with test data.Subsequently,effects of factors,such as,target inclination angle and target thickness on ballistic performance were discussed.The results showed that increase in target plate inclination angle effectively reduces penetration ability of armor-piercing projectile,residual velocity and attitude change angle of projectile body after penetration exhibits nonlinear downward and upward trends,respectively with increase in target plate inclination angle;ultimate jump angle of titanium alloy target plate is sensitive to thickness of target plate,and ultimate jump angle decreases nonlinearly with increase in target plate thickness.
作者
李钊
孙旭光
周中锋
LI Zhao;SUN Xuguang;ZHOU Zhongfeng(System Overall Technology Department,China North Vehicle Research institute,Beijing 100072,China;Product Research Institute,Jianglu Machinery and Electronics Group Co.,Ltd.,Xiangtan 411100,China)
出处
《振动与冲击》
EI
CSCD
北大核心
2023年第23期159-166,共8页
Journal of Vibration and Shock
关键词
爆炸力学
斜侵彻
钛合金靶板
数值仿真
mechanics of explosion
oblique penetration
titanium alloy target
numerical simulation
