截卵形头部平台直径对初始侵彻弹道偏转的影响  

Effects of Truncated Ovate Nose Diameter of the Penetration Warhead on the Ballistic Deflection

作　　者：张丁山[1] 谷鸿平[1] 徐笑 张博 吕永柱[1] ZHANG Dingshan;GU Hongping;XU Xiao;ZHANG Bo;LÜYongzhu(Xi’an Modern Chemistry Research Institute,Xi’an 710065,Shaanxi,China)

机构地区：[1]西安近代化学研究所,陕西西安710065

出　　处：《高压物理学报》2021年第5期136-142,共7页Chinese Journal of High Pressure Physics

摘　　要：针对截卵形头部弹体斜侵彻靶标时弹道发生初始偏转的问题,建立了分析截卵平台直径对初始弹道偏转影响的理论和数值仿真计算模型,计算了相同侵彻条件下不同截卵平台直径时,头部侵彻产生的偏转函数和偏转角速度。结果表明:截卵平台头部侵彻产生的偏转力矩会减小弹轴与靶标法线之间的夹角,且随着截卵平台直径的增大,偏转力矩增大,偏转角速度增大,当截卵平台直径增大到1.5倍时,偏转力矩增大到约1.2倍,当截卵平台直径增大到2.0倍时,偏转力矩增大到约2倍;相同截卵平台直径下,随着头部形状系数的减小,偏转力矩和偏转角速度增大。In order to study the problem of preliminary ballistic deflection when a penetration warhead with truncated ovate nose penetrates target obliquely,the theoretical model and simulation model are set up to analyze the effects of truncated ovate nose diameter on the preliminary ballistic deflection of penetration.The defection function and deflection angular velocity of warhead penetrating target are calculated in the same penetration condition with different truncated ovate nose diameters.It is concluded that the angle between axis of warhead and normal of target decreases with the action of deflection moment caused by the warhead of truncated ovate nose penetrating target.Both the deflection moment and the deflection angular velocity increase with the increase of truncated ovate nose diameter.When the truncated ovate nose diameter increases to 1.5 times,the deflection moment will increase to about 1.2 times.When the truncated ovate nose diameter increases to 2.0 times,the deflection moment will increase to about 2 times.Under the condition of the same truncated ovate nose diameter,the defection moment and the deflection angular velocity are increased with the shape coefficient of warhead.

关 键 词：侵彻 弹道 弹道偏转 偏转力矩 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术] O385[理学—流体力学]