药型罩结构参数对整体式MEFP成型的影响  

Effect of Liner Configuration Parameters on Formation of Integral MEFP

作　　者：赵长啸[1] 钱芳[1] 徐建国[1] 曹宏安[1] 纪冲[2] 路亮[3] 

机构地区：[1]武汉军械士官学校 [2]解放军理工大学野战工程学院 [3]中国人民解放军72351部队

出　　处：《含能材料》2016年第5期485-490,共6页Chinese Journal of Energetic Materials

基　　金：爆炸科学与技术国家重点实验室开放基金项目(KFJJ10-2M)

摘　　要：为提高整体式多爆炸成型弹丸（MEFP）毁伤能力,采用LS-DYNA仿真软件,模拟了药型罩结构参数对弹丸成型的影响。基于研究结果优化设计了一种整体式装药结构,并对其进行了试验验证。结果表明：药型罩结构参数对弹丸的影响主要体现在弹丸形态上,随着药形罩曲率半径的增加,中心弹丸长径比及周边弹丸长度分别降低了40%和41.2%。周边弹丸形状逐渐由杆形弹向球形弹丸发展。随着壁厚的增加,中心弹丸长径比及周边弹丸长度则分别降低了22.2%和19.7%。周边弹丸拖尾逐渐减小,弹丸飞行稳定性增强。优化得到药型罩曲率半径和壁厚的最优值分别为77~82 mm和2.2~2.6 mm。设计的战斗部可有效穿透15mm厚45#钢靶,与数值模拟结果吻合较好。To improve the damage ability of integral multiple explosively formed projectiles（ MEFP）,the effect of configuration parameters of liner on projectile formation was studied using LS-DYNA code. Based on the simulating results,a integral charge structure was optimized and designed and its experiment verification was carried out. Results show that liner configuration parameters have great effect on projectile shape. With increasing the liner curvature radius,the length-diameter ratio of central projectile and the length of surrounding projectile decrease by 40% and 41. 2%,respectively. The shape of surrounding projectile changes from rods to ball shape gradually.With increasing the liner thickness,the length-diameter ratio of central projectile and the length of surrounding projectile decrease by 22.2% and 19. 7%,respectively. The trail of surrounding projectile decreases gradually and the flight stability of projectile enhances. The curvature radius obtained by optimization and optimal value of thickness are 77- 82 mm and 2. 2- 2. 6 mm,respectively. Designed warhead can effectively penetrate the 45# steel target plate with a thickness of 15 mm,which is in good agreement with the simulation results.

关 键 词：多爆炸成型弹丸(MEFP) 药型罩 数值模拟 

分 类 号：TJ410.33[兵器科学与技术—火炮、自动武器与弹药工程]