CAJ | 학술논문

为有效降低弹药前舱对聚能射流的干扰作用,提高射流穿过前舱后的侵彻威力,设计了一种新结构药型罩.通过将前舱等效为均质靶板的等效方法,得到了均质等效靶的等效厚度.利用AUTODYN-2D数值仿真软件分别对新结构药型罩和常规药型罩射流侵彻等效前舱作用过程进行了数值计算,并对射流穿过等效前舱后的侵彻孔形进行了理论计算.结果表明,与常规药型罩相比,新结构药型罩降低了等效前舱对射流的能量消耗,提高了射流穿过等效前舱后的头部速度和射流能量,对带等效前舱钢筋混凝土目标的侵彻深度提高了11.7%以上,理论计算和试验孔形基本吻合.新结构药型罩射流对前舱的抗干扰能力明显优于常规药型罩.
위유효강저탄약전창대취능사류적간우작용,제고사류천과전창후적침철위력,설계료일충신결구약형조.통과장전창등효위균질파판적등효방법,득도료균질등효파적등효후도.이용AUTODYN-2D수치방진연건분별대신결구약형조화상규약형조사류침철등효전창작용과정진행료수치계산,병대사류천과등효전창후적침철공형진행료이론계산.결과표명,여상규약형조상비,신결구약형조강저료등효전창대사류적능량소모,제고료사류천과등효전창후적두부속도화사류능량,대대등효전창강근혼응토목표적침철심도제고료11.7%이상,이론계산화시험공형기본문합.신결구약형조사류대전창적항간우능력명현우우상규약형조.
To reduce the interference of forward section on shaped charge jet and improve the penetration ability of jet after penetrating through forward section,a new-type liner was designed.By the equivalent method that the forward section was equivalent as homogeneous target,the equivalent thickness of homogeneous target was obtained.AUTODYN-2D numerical simulation software was used for calculating the process of jet penetrating forward section of new liner and conventional liner respectively.The cavity shape created by jet penetrating through equivalent forward section was theoretically calculated.Compared with conventional liner,the energy consumption is reduced,and tip velocity and jet kinetic energy are in creased by using new liner.By using new liner,the penetration depth is increased by 11.7% while jet penetrating into reinforced concrete with equivalent section.The cavity shape of calculation is consistent with that of experiments.The anti-interference capability of new liner is better than that of conventional liner.