小口径高炮修正弹在脉冲作用下的运动特性  

Motion Characteristics of the Small Caliber Anti-aircraft Gun Correction Projectile Subjected to a Pulse Action

作　　者：杨志伟 王良明[1] 陈健伟[1] 殷永旸 YANG Zhiwei;WANG Liangming;CHEN Jianwei;YIN Yongyang(School of Energy and Power Engineering,Nanjing University of Science and Technology,Nanjing 210094,Jiangsu,China)

机构地区：[1]南京理工大学能源与动力工程学院,江苏南京210094

出　　处：《兵工学报》2022年第6期1337-1345,共9页Acta Armamentarii

基　　金：武器装备预先研究项目(2021年)。

摘　　要：为研究小口径高炮修正弹在脉冲作用下的运动特性,建立弹丸的复攻角和复偏角方程。将脉冲作用过程分为脉冲直接力作用和脉冲引起的气动力作用两个过程。分别推导两个过程的复攻角和复偏角方程的解析解,得到速度平均偏角的表达式,分析速度偏角的产生机理。通过与数值解的仿真对比,验证了解析解的正确性。研究结果表明:对于尾翼稳定弹丸,脉冲发动机应安装在弹丸质心之前,可使单个脉冲发动机产生的速度方向改变量最大;脉冲引起的气动力作用对弹丸速度方向的影响远大于脉冲直接力作用的影响;脉冲作用会在垂直于脉冲发动机推力方向上产生速度增量。研究结果可为小口径高炮修正弹的总体设计和制导方法优化提供参考。A complex attack of angle equation and a complex deflection angle equation are established to study the motion characteristics of small caliber anti-aircraft gun correction projectile subjected to the pulse action.The pulse action process is divided into two processes:direct force action of pulse and aerodynamic action caused by pulse.The analytical solutions of the complex angle of attack equation and the complex deflection angle equation of the two processes are deduced,respectively,to obtain the expression of the average deflection angle,and the generation mechanism of the velocity deflection angle is analyzed.The correctness of the analytical solutions is verified by comparing the simulated result with the numerical solution.The results show that the pulse thruster should be installed in front of the center of mass of fin-stabilized project,so as to maximize the change of velocity direction produced by a single pulse thruster;the aerodynamic action caused by the pulse has a much greater impact on the velocity direction of the projectile than the direct force action of the pulse.The pulse action lead to a speed increase in the direction perpendicular to the thrust force of the pulse thruster.

关 键 词：小口径高炮修正弹 脉冲发动机 角运动 解析解 弹道修正 

分 类 号：TJ412.5[兵器科学与技术—火炮、自动武器与弹药工程]