卵形弹侵彻冻土实验及数值模拟研究  

Experimental and Numerical Simulation Study on Penetration ofOgival Nose Projectiles into Frozen Soil

作　　者：高豪强 盛鹏 梁增友[1] 王春光 周通通 童超慧 GAO Haoqiang;SHENG Peng;LIANG Zengyou;WANG Chunguang;ZHOU Tongtong;TONG Chaohui(School of Mechanical and Electrical Engineering,North University of China,Taiyuan 030051,Shanxi,China;Nanyang North Hongyu Mechanical and Electrical Manufacturing Co.,Ltd.,Nanyang 474600,Henan,China;Jinxi Group Jiangyang Company,Taiyuan 030000,Shanxi,China)

机构地区：[1]中北大学机电工程学院,山西太原030051 [2]南阳北方红宇机电制造有限公司,河南南阳474600 [3]晋西集团江阳公司,山西太原030000

出　　处：《火炮发射与控制学报》2025年第2期113-119,共7页Journal of Gun Launch & Control

基　　金：山西省科技厅基础研究计划项目(202103021224210)。

摘　　要：针对冻土地区的地下防护工程建设问题,进行了弹体侵彻冻土试验,以100~200 m/s的弹体初速侵彻-10℃下含水率为30%的冻土,对冻土的抗侵彻能力进行了试验研究。试验结果表明:随着弹体初速的提高,弹体侵彻冻土的深度逐渐增加,弹体在侵彻冻土过程中弹体姿态未出现反转,并得到了弹体侵彻深度和速度之间的关系式。采用LS-DYNA软件建立了数值计算模型对弹体侵彻冻土进行仿真计算,分析了侵彻速度对弹体侵彻能力的影响。通过数值模拟并对比试验结果、理论计算和经验公式可知,弹体侵彻深度与弹体初速变化的趋势保持一致,与理论计算结果吻合程度高,验证了空腔膨胀理论模型在侵彻冻土方面的可行性,相对于经验公式,理论计算公式更贴近于实际侵彻结果,为冻土地区的地下防护工程建设提供理论依据。In order to study the construction of underground protection projects in areas covered by frozen soil,penetration tests of projectiles into frozen soil was carried out.A projectile with a muzzle velocity of 100~200 m/s penetrated the frozen soil with a water content of 30%at-10℃.The test results show that with the increase of the muzzle velocity of the projectile,the depth of the projectile pene-trating the frozen soil gradually increases,and the attitude of the projectile does not reverse during the penetration of the frozen soil.The relationship between the penetration depth and the velocity of the projectile was obtained.A numerical calculation model was established by LS-DYNA software to simulate the penetration of the projectile into frozen soil,and the influence of penetration speed on the pene-tration ability of the projectile was analyzed.Through numerical simulation and comparison of test results,theoretical calculations and empirical formulas,it can be seen that the penetration depth of the projectile is consistent with the change of the muzzle velocity of the projectile,which is in good agreement with the theoretical calculation results.The research results can provide a theoretical basis for the construction of underground protection projects in frozen soil areas.

关 键 词：卵形弹 侵彻 冻土 空腔膨胀模型 数值模拟 

分 类 号：TJ410[兵器科学与技术—火炮、自动武器与弹药工程]