装配误差对破甲战斗部性能影响的研究
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摘要
设计了七种药型罩装配偏心方案,利用ANSYS/LS-DYNA有限元分析软件对不同装配偏心误差的破甲战斗部的射流形成以及射流对靶板侵彻过程进行数值模拟。研究结果表明随着偏心误差的增加,射流头部偏移程度越来越大,射流形态越来越不稳定,射流的侵彻深度随着误差的增加而减少。其减少趋势在误差偏心为0.1°时变小,当误差偏心为0.2°后,减少趋势逐渐增大,可为药型罩的装配精度要求提供参考。
In order to study the influence of assembly error on the penetration ability of the sunder armor warhead,seven types of hood eccentricity schemes were designed.Using ANSYS/LS-DYNA finite element analysis software to simulate the jet formation of the armored warhead with different assembly eccentricity errors and the jet-to-target penetration process.The results show that with the increase of eccentricity error,the head of the jet is more and more offset,and the shape of the jet is more and more unstable.The penetration depth of the jet decreases with the increase of the error.This decreasing trend becomes smaller when the error eccentricity is 0.1°.When the error eccentricity is 0.2°,the decreasing trend is gradually increased.
In order to study the influence of assembly error on the penetration ability of the sunder armor warhead,seven types of hood eccentricity schemes were designed.Using ANSYS/LS-DYNA finite element analysis software to simulate the jet formation of the armored warhead with different assembly eccentricity errors and the jet-to-target penetration process.The results show that with the increase of eccentricity error,the head of the jet is more and more offset,and the shape of the jet is more and more unstable.The penetration depth of the jet decreases with the increase of the error.This decreasing trend becomes smaller when the error eccentricity is 0.1°.When the error eccentricity is 0.2°,the decreasing trend is gradually increased.
引文
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[2]赵方宣,李如江,薛伟,等.非对称壳体对聚能射流形成影响的数值模拟和试验[J].科学技术与工程,2016,16(10):1-5.
[3]姜剑生,杭义洪,冯其京.非对称射流形成研究[J].兵工学报,2004,25(3):292-295.
[4]秦承森,石艺娜,冯其京,等.非对称射流形成的几何理论(一)---几何封闭条件[J].爆炸与冲击,2007,27(6):493-500.
[5]秦承森,石艺娜,冯其京,等.非对称射流形成的几何理论(二)---非对称斜碰撞情况[J].爆炸与冲击,2007,27(6):501-508.
[6]AYISIT O.The influence of asymmtries in shapedcharge performance[J].International Journal of impact Eengineering,2008,35(12):1399-1404.
[7]贾伟,吴国东,王志军,等.制造误差对金属射流威力影响的仿真研究[J].弹箭与制导学报,2011,31(4):99-101,103.
[8]刘建荣,张国伟,徐立新,等.药型罩加工精度对破甲战斗部威力影响的研究[J].弹箭与制导学报,2012,32(3):114-117.
[9]宁强,方向,汪明星.非对称性对线型聚能射流的影响[J].弹道学报,2011,23(2):96-99.
[10]周鹏,李如江,方志坚,等.药型罩和药柱不对称对线型聚能射流侵彻性能的影响[J].弹箭与制导学报,2013,33(4):87-90.