首页|球缺型EFP在不同介质中的成型形态及侵彻性能研究

球缺型EFP在不同介质中的成型形态及侵彻性能研究

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为了研究不同介质对变壁厚球缺罩形成爆炸成型弹丸的影响,设计了直径为12 cm中间厚、边缘薄的变壁厚球缺型聚能装药.利用LS-DYNA软件对不同介质中EFP的形成与侵彻进行了数值模拟,重点探讨不同长度空气和水介质对球缺型EFP成型形态及侵彻性能的影响.研究表明:变壁厚球缺罩型聚能装药在水中无法翻边和压合成EFP,EFP形成需要在药型罩前端增加一段空气,其空气长度对EFP入水形态、水中形态以及速度分布有明显的影响.水介质对未成型EFP形态有自锻作用,对成型EFP形态改变较大,使得前者水中侵彻性能相对优于后者.不同长度的空气和水介质影响下变壁厚球缺型EFP仍具有穿透3 cm靶板的威力,能满足灭雷具不同作战工况下的毁伤效能要求.
Study on the forming morphology and penetration performance of spherical-defect EFP in different media
In order to study the influence of different media on the formation of explosively formed projectile(EFP)with variable wall thickness spherical liner,a variable wall thickness spherical shaped charge with a diameter of 12 cm and a middle thickness and a thin edge was designed.The formation and penetration of EFP in different media were numerically simulated by LS-DYNA software,and the effects of air and water media with different lengths on the forming morphology and penetration performance of EFP were discussed.The results show that the variable wall thickness spherical shaped charge can not be flanged and pressed to synthesize EFP in water.The formation of EFP needs to add a section of air at the front end of the liner.The air length has a significant effect on the water entry form,water form and velocity distribution of EFP.The water medium has a self-forging effect on the shape of the unformed EFP,and changes the shape of the formed EFP greatly,so that the penetration performance of the former in water is better than that of the latter.Under the influence of different lengths of air and water media,the variable wall thickness ball-shaped EFP still has the power to penetrate the 3cm target plate,which can meet the damage effectiveness requirements of the mine destroyer under different combat conditions.

ball missing type EFPshaped chargenumerical simulationunderwater penetrationwater form

张雪梅、谢兴博、顾文彬、王震、钟明寿

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陆军工程大学,南京 210007

武汉雷神特种器材有限公司,武汉 430200

陆军指挥学院,南京 210045

球缺型EFP 聚能装药 数值模拟 水下侵彻 水中形态

国家自然科学基金项目陆军工程大学科技创新项目

12072372KYGYZB002201

2024

兵器装备工程学报
重庆市(四川省)兵工学会 重庆理工大学

兵器装备工程学报

CSTPCD北大核心
影响因子:0.478
ISSN:2096-2304
年,卷(期):2024.45(10)