起爆方式对定向多爆炸成型弹丸成型性能的影响  

Effect of Detonation Mode on Directional MEFP Warhead

作　　者：王芳[1] 周末 纪刘奇 WANG Fang;ZHOU Mo;JI Liuqi(Beijing Institute of Technology State Key Laboratory of Explosion Science and Technology,Beijing 100081,China;No.203 Research Institute of China Ordnance Industries,Xi’an 710065,China)

机构地区：[1]北京理工大学爆炸科学与技术国家重点实验室,北京100081 [2]中国兵器工业第二〇三研究所,西安710065

出　　处：《兵器装备工程学报》2019年第8期5-9,共5页Journal of Ordnance Equipment Engineering

摘　　要：采用AUTODYN-3D数值仿真软件模拟了不同起爆方式对定向多爆炸成型弹丸成型性能的影响,并进行了验证。结果表明,当采用单点起爆时,弹丸的长径比最接近球形,但速度较低且飞散角较大;采用两点和三点起爆时,随着起爆间距的增加,弹丸的速度增加、飞散角降低、长径比增加,三点起爆大间距下有弹丸头部碎裂、长径比过大等问题;采用线起爆时弹丸速度最高,同时具有较好的飞散角和长径比。当采用两点起爆,起爆点间距为60~80 mm时,弹丸的综合性能最好。The influences of different detonation methods on the forming process of directional MEFP was simulated by AUTODYN-3D numerical simulation software.When single-point detonation was used,the length-diameter ratio of the projectile was the closest to the spherical shape,but the speed was lower and the flying angle was larger.When the two-point and three-point detonations were used,the velocity of the projectile increased with the increase of the detonations spacing.The flying angle was reduced,the length-diameter ratio was increased.The projectile head has fragmentation and excessive length-diameter ratio at a large spacing three-point detonation;The line detonated has the highest speed and good flying angle and length-diameter ratio.When using two-point detonations,detonations spacing is 60~80 mm,the overall performance of the projectile is best.

关 键 词：定向多爆炸成型弹丸(MEFP) 起爆方式 数值模拟 爆炸力学 药型罩 

分 类 号：TJ4[兵器科学与技术—火炮、自动武器与弹药工程]