斜侵彻薄靶板过程中弹体偏转的姿态修正方法  

Correcting Method of Projectile Deflection after Obliquely Penetrating into a Thin Target Flate

作　　者：姜剑生[1] 何雨 张小庆 王政[1] JIANG Jiansheng;HE Yu;ZHANG Xiaoqing;WANG Zheng(Institute of Applied Physics and Computational Mathematics,Beijing 100094,China;Institute of Fluid Physics,China Academy of Engineering Physics,Mianyang 621900,Sichuan,China)

机构地区：[1]北京应用物理与计算数学研究所,北京100094 [2]中国工程物理研究院流体物理研究所,四川绵阳621900

出　　处：《兵工学报》2021年第S01期68-73,共6页Acta Armamentarii

基　　金：国家自然科学基金青年基金项目(11702028);北京应用物理与计算数学研究所项目(TCSQ0917);中国工程物理研究院基金项目(B-CX-A-201803、JMRH2021-02)。

摘　　要：弹体斜侵彻靶板后姿态发生偏转,是常规武器侵彻类战斗部研制过程中必须面临和解决的问题,而弹体发生偏转的影响因素很多。在准定常条件下,通过分析弹体侵彻薄靶板时受到的作用力及其偏转角加速度,明确偏转力和偏转力矩的来源和方向。针对不同靶体材质,比较金属靶和混凝土靶侵彻过程中弹体偏转角加速度的异同,结果表明通过调整质心位置和改变弹尾形状能修正弹体过靶姿态。采用数值模拟方法验证了上述结论,该结论可为侵彻弹体的设计和外形优化及提高侵彻弹道的稳定性提供参考。Projectile deflects after obliquely penetrating into a target plate,which is a problem having to face and be solved in warhead design.Many influence factors have effect on projectile deflection.The process of penetration under the quasi-steady condition is analyzed.The acting position and direction of deflected moment are found by analyzing the force and deflected angular acceleration on the projectile.The similarities and differences between the deflected angular accelerations of projectile penetrating into metal and concrete targets are compared.The projectile deflection can be corrected by adjusting the center of mass of projectile and changing the shape of its tail,which is verified through numerical simulation.The results can be used to optimize the design of projectile body and promote the stability of penetration.

关 键 词：薄靶板 斜侵彻 弹体偏转 偏转角 角加速度 姿态修正 

分 类 号：TJ012.4[兵器科学与技术—兵器发射理论与技术]