高超声速钻地炸弹侵彻深度计算方法  

Calculation method of penetration depth of hypersonic earth-penetrating bomb

作　　者：何勇[1] 李干 郭纬 邓树新 HE Yong;LI Gan;GUO Wei;DENG Shuxin(Nanjing University of Science and Technology,Nanjing 210094,China;State Key Laboratory of Explosion and Impact and Disaster Prevention and Mitigation,Army Engineering University of PLA,Nanjing 210007,China)

机构地区：[1]南京理工大学,江苏南京210094 [2]陆军工程大学爆炸冲击防灾减灾国家重点实验室,江苏南京210007

出　　处：《防护工程》2023年第2期31-36,共6页Protective Engineering

基　　金：国家自然科学基金面上项目(11972045);国家自然科学基金青年项目(42102331)

摘　　要：高超声速钻地炸弹的巡航速度大于5 Ma,为保证着靶侵彻过程弹体结构完整,其着靶速度通常小于5 Ma。对于在3~5 Ma范围内的钻地炸弹打击,既有混凝土结构防护侵彻深度设计方法不能涵盖上述速度范围的计算问题。依据已有研究基础,阐明了该速度范围钻地弹侵彻介质的拟流体特性,提出了高超声速刚性钻地炸弹侵彻介质拟流体模型,明确了弹靶作用阻抗函数与拟流体内摩擦性状的关联,据此建立了高超声速炸弹侵彻深度计算方法。通过与已有实验结果对比分析,表明该方法具有可信性。The cruise velocity of hypersonic earth-penetrating bomb is usually higher than 5 Ma,but in order to ensure the completeness of the projectile during penetrating into the target,the target impact velocity is generally less than 5 Ma.For the earth-penetrating bomb attack with a velocity range of 3~5 Ma,the current design method of penetration depth for the protection of concrete structures cannot cover the calculation of this velocity range.Based on the existing research,this paper described the pseudo fluid characteristics when the penetrator penetrates the medium in this velocity range,proposed a pseudo fluid model of penetrating medium by the hypersonic rigid earth-penetrating bomb,and obtained the correlation between the impedance function of the projectile-target interaction and the internal friction behavior of the pseudo fluid,and based on which,a method for calculating the penetration depth of hypersonic bomb is established.The comparison with the existing test results shows that this method is credible.

关 键 词：钻地武器 高超声速侵彻 水动力学模型 

分 类 号：TJ414[兵器科学与技术—火炮、自动武器与弹药工程]