聚能装药破甲深度炸高不敏感性研究

Study on Stand-off Distance Insensitivity of Cumulative Charge Armor Penetration Depth

为降低聚能装药在不同炸高下的破甲威力散布,使破甲战斗部更好地适应在未爆弹药销毁器材中的使用条件,采用AUTODYN有限元程序进行数值模拟,得到了低碳钢药型罩聚能装药破甲深度与药型罩锥角、壁厚及炸高之间的关系曲线。相同药型罩锥角和壁厚在4种炸高下射流破甲试验结果与仿真结果误差最大为1.9%。在装药直径为64 mm、罩顶装药高为35.4 mm、药型罩锥角为55°~65°、壁厚为1.1~1.5 mm的情况下,以锥角60°时或壁厚1.5 mm时射流破甲威力对炸高最为不敏感,炸高从50 mm变化到500 mm,破甲深度只分别变化了28.8%和29.0%。

In order to reduce armor penetrating power distribution of cumulative charge and make armor penetration warhead better adapt to working condition under different stand-off distance,numerical simulation was used by AUTODYN,the relation curve that mild steel cavity liner cumulative charge penetration depth varies with cavity liner cone angle,thickness and stand-off distance was obtained.The largest error between experiment result and simulation result was 1.9%with same cavity liner cone angle and thickness under four stand-off distances.The armor penetrating power of jet was the most insensitive to stand-off distance and the penetration depth changed 28.8%and 29.0%respectively with 60°cavity liner cone angle and 1.5 mm cavity liner thickness under situation ofФ64 mm cumulative charge,35.4 mm length charge at liner apex,55°~65°cavity liner cone angle,1.1~1.5 mm cavity liner thickness,50~500 mm stand-off distance.