弹丸头部形状对弹道偏流现象的影响
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摘要
外弹道方程表明弹丸阻力对弹道偏流存在影响.由于弹丸头部形状对弹丸阻力影响显著,为探究弹丸头部形状与弹道偏流现象之间的关系,通过理论分析,数值计算,试验验证的方法对弹丸头部形状与弹道偏流现象的关系进行了研究.结果表明,弹头形状越尖锐,弹丸的偏流程度越小,该结论可为弹丸的头部形状设计提供参考.
The external ballistic equation shows that the drag of has an effect on the trajectory deviation.Because the shape of bullet head greatly affects the resistance of bullet,in order to clarify the relationship between the shape of bullet head and the phenomenon of trajectory deviation,the relationship between the shape of bullet head and the phenomenon of trajectory deviation was studied by theoretical analysis,numerical calculation and experimental verification.The results show that the sharper the shape of the warhead,the smaller the deflection degree of the bullet.This conclusion can provide a reference for the design of the head shape of the bullet.
The external ballistic equation shows that the drag of has an effect on the trajectory deviation.Because the shape of bullet head greatly affects the resistance of bullet,in order to clarify the relationship between the shape of bullet head and the phenomenon of trajectory deviation,the relationship between the shape of bullet head and the phenomenon of trajectory deviation was studied by theoretical analysis,numerical calculation and experimental verification.The results show that the sharper the shape of the warhead,the smaller the deflection degree of the bullet.This conclusion can provide a reference for the design of the head shape of the bullet.
引文
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[2]浦发,芮筱亭.外弹道学[M].南京:南京理工大学,1990.
[3]魏萱荪.导弹与弹丸飞行力学[M].北京:空军工程学院,1996.
[4]雷娟棉,李田田,黄灿.高速旋转弹丸马格努斯效应数值研究[J].兵工学报,2013,34(6):718-725.Lei Juanmian,Li Tiantian,Huang Can.A numerical investigation of magnus effect for high-speed spinning projectile[J].Acta Armamentarii,2013,34(6):718-725.(in Chinese)
[5]肖中云,缪涛,陈波,等.船尾形状对旋成体马格努斯效应的影响[J].航空学报,2018,39(6):1-9.Xiao Zhongyun,Miao Tao,Chen Bo,et al.Influence of boattail shape on Magnus effects of a spinning rotating body[J].Acta Aeronautica et Astronautica Sinica,2018,39(6):1-9.(in Chinese)
[6]张维.基于MATLAB的武器外弹道仿真可视化技术研究[D].太原:中北大学,2014.
[7]蓝志环,田春艳,车继馨,等.低速旋转炮弹偏流现象的研究[J].科学技术与工程,2011,11(26):6456-6458.Lan Zhihuan,Tian Chunyan,Che Jixin,et al.Research on the deflective flow of the low-speed revolving cannonball[J].Science Technology and Engineering,2011,11(26):6456-6458.(in Chinese)
[8]封贝贝,陈大融,汪家道,等.头部形状对超声速飞行器力学性能影响分析[J].飞行力学,2012,30(6):537-540.Feng Beibei,Chen Darong,Wang Jiadao,et al.Affect of head shape on flight dynamics of supersonic vehicles[J].Flight Dynamics,2012,30(6):537-540.(in Chinese)
[9]刘宣,闻泉,王雨时,等.优化弹头引信外形增大小口径亚音速弹射程[J].探测与控制学报,2016,38(6):31-34.Liu Xuan,Wen Quan,Wang Yushi,et al.Optimization of nose fuze contour to increase range of small-caliber subsonic grenade[J].Journal of Detection &Control,2016,38(6):31-34.(in Chinese)
[10]梁化鹏,沈培辉,薛建锋,等.可变形小口径枪弹的侵彻特性研究[J].兵器装备工程学报,2016,37(12):69-72.Liang Huapeng,Shen Peihui,Xue Jianfeng,et al.Study on warhead deformation and penetration characteristics of a new type of bullet[J].Journal of Ordnance Equipment Energeering,2016,37(12):69-72.(in Chinese)
[11]吴志林,陶家宾.基于fluent的微型修正弹药气动特性仿真[J].计算机仿真,2013,30(6):20-23.Wu Zhilin,Tao Jiabin.Areodynamic simulation of micro correction projectile based on fluent[J].Computer Simulation,2013,30(6):20-23.(in Chinese)
[12]于勇.Fluent入门与进阶教程[M].北京:北京理工大学出版社,2008.