非晶合金药型罩的射流仿真及结构设计  

Jet simulation and shape design of amorphous alloy liner

作　　者：周秉文[1,2] 杜恩轩 赵进北 鞠鹏程 朱梦奇 孟令刚 亚斌[1] 张兴国[1,2] ZHOU Bingwen;DU Enxuan;ZHAO Jinbei;JU Pengcheng;ZHU Mengqi;MENG Linggang;YA Bin;ZHANG Xingguo(School of Materials Science and Engineering,Dalian University of Technology,Dalian 116024,China;Ningbo Research Institute,Dalian University of Technology,Ningbo 315061,China)

机构地区：[1]大连理工大学材料科学与工程学院,辽宁大连116024 [2]大连理工大学宁波研究院,浙江宁波315061

出　　处：《兵器材料科学与工程》2024年第5期92-99,共8页Ordnance Material Science and Engineering

摘　　要：采用Ls-dyna软件中的光滑粒子流体动力学(SPH)方法对非晶合金药型罩的射流成形进行数值仿真,侵彻仿真用软件中的多物质ALE算法和流固耦合,并进行试验验证。结果表明:72°锥角非晶合金药型罩的射流形态、性能更好,射流为连续性非凝聚态,锥角为72°,壁厚为2.5 mm的非晶合金药型罩穿深约为铜药型罩的86%,孔径约为铜药型罩的1.46倍,仿真结果与试验结果误差小于10%。药型罩中部对非晶合金射流成形和性能影响最大。根据非晶合金射流特征设计了一种新型药型罩结构,其侵彻45#钢穿深比锥形非晶合金药型罩提高约12%,达到相同锥角的锥形铜药型罩的穿深,孔径比铜药型罩高约44%,为非晶合金药型罩结构设计提供参考。The smooth particle hydrodynamics(SPH)method in Ls-dyna software was used to simulate the jet forming of the amorphous alloy liner,The multi-substance ALE algorithm and fluid-structure coupling in Ls-dyna software were used for simulation.The results show that the jet morphology and performance of the amorphous alloy liner with a cone angle of 72°are better,the jet is continuous non-condensed state,the penetration depth of the amorphous alloy liner with a cone angle of 72°and a wall thickness of 2.5 mm is about 86%of the copper liner,the aperture is about 1.46 times that of the copper liner,and the error of the simulation and experimental results is less than 10%.The middle part of the liner has the greatest influence on the amorphous alloy jet forming and performance.According to the characteristics of amorphous alloy jet,a new type of liner shape was designed,and the penetration depth of the penetrating 45#steel is about 12%higher than that of the conical amorphous alloy liner,and the penetration depth of the conical copper liner with the same cone angle is reached,and the aperture is about 44%higher than that of the copper liner,it provides a reference for the shape design of the amorphous alloy liner.

关 键 词：非晶合金 药型罩 有效射流 结构设计 

分 类 号：TJ410.4[兵器科学与技术—火炮、自动武器与弹药工程]