CAJ | 학술논문

在药型罩上粘附铝隔板是一种新的形成尾翼型爆炸成型弹丸(Explosively Formed Projectile,EFP)的实验方法.通过实验和数值模拟对该方法进行了分析,探讨了形成尾翼的机理.利用有限元分析软件LS-DYNA,对大锥角型、球缺型和弧锥结合型3种不同药型罩在采用新方法时形成的尾翼型EFP进行了三维数值模拟分析,并将模拟结果与实验结果进行对比.研究结果表明:3种药型罩均能形成比较明显的尾翼,数值计算结果与实验结果较吻合.该研究为设计尾翼型EFP提供了一种新的参考方法.
재약형조상점부려격판시일충신적형성미익형폭작성형탄환(Explosively Formed Projectile,EFP)적실험방법.통과실험화수치모의대해방법진행료분석,탐토료형성미익적궤리.이용유한원분석연건LS-DYNA,대대추각형、구결형화호추결합형3충불동약형조재채용신방법시형성적미익형EFP진행료삼유수치모의분석,병장모의결과여실험결과진행대비.연구결과표명:3충약형조균능형성비교명현적미익,수치계산결과여실험결과교문합.해연구위설계미익형EFP제공료일충신적삼고방법.
It is a new method to produce an explosively formed projectile (EFP) with fins by attaching aluminum cover on the liner.Experimental and numerical research were performed using this new method.Furthermore,the mechanism of forming fins was discussed.The new method of forming EFP with fins was simulated by LS-DYNA,and a contrastive analysis was carried out on three typical liners,including big-cone shaped,imperfect-sphere shaped and arc-cone shaped.The results from 3D numerical simulations and experiments were also analysed.Comparison of results show that three kind of liners could form obvious fins by this new method,and the results of numerical simulations are in agreement with the experiment data.The research provides a new reference method for designing EFP with fins.