尾翼式低旋高超声速制导炮弹弹道特性分析  

Analysis on ballistic characteristics of tailed low-speed spinning hypersonic projectile

作　　者：朱胤 王旭刚[2] ZHU Yin;WANG Xugang(No.710 Research and Development Institute,CSSC,Yichang 443000,China;School of Energy and Power Engineering,Nanjing University of Science and Technology,Nanjing 210094,China)

机构地区：[1]中国船舶集团有限公司第七一〇研究所,湖北宜昌443000 [2]南京理工大学能源与动力工程学院,南京210094

出　　处：《兵器装备工程学报》2022年第10期158-165,共8页Journal of Ordnance Equipment Engineering

摘　　要：根据高超声速制导炮弹飞行空域大、气动参数多元非线性的特点,建立适配的6-D运动方程和自由扰动运动方程,并对某弹型进行了弹道仿真;调整6-D运动方程中的初始射角Λ,计算最大射程角,掌握射程等参数随射角Λ的变化规律;调整尾翼导转力矩系数m_(xw),采用蒙特卡洛法计算并分析了平衡转速n对低旋高超声速炮弹的散布的影响;分别采用平面、球形和椭圆大地假设对6-D运动方程进行了解算,并分析了地球转速Ω和扁率α_(e)对弹道特性的影响。结果表明:研究的尾翼式低速自旋高超声速炮弹能够保持飞行稳定,具有良好的弹体稳定性;为了适配安装控制系统后的控制能力、增加落点动能,应设计平衡转速n=8.7 r·s^(-1)。In this paper, according to the characteristics of low-speed spinning hypersonic guided projectile with large flight space and multivariate nonlinearity of aerodynamic parameters, the adaptive 6-D motion equations and the free perturbation motion equations were established, and the ballistic simulation of acertain projectile was carried out;the initial value of the angle of fire Λ in 6-D equationswas given to work out the maximum range angle and the variation of range with it;the tail rotation torque coefficient m_(xw) was given and the Monte Carlo method was used to calculate and analyze the influence of the balanced rotation speed n on the dispersion of the spinning hypersonic projectile;the 6-D equations were respectively simulated on the Planar Geodetic Hypothesis, the Spherical Earth Hypothesis and the Elliptical Earth Hypothesis so that the effects of the Earth rotation speed Ω and oblateness α_(e) on the ballistic characteristics are analyzed. The results show that the low-speed spinning hypersonic projectile studied in this paper can possess and maintain good flight stability;In order to adapt the control ability of the control system after installing that and increase the kinetic energy of the drop point, the balanced rotating speed n should be designed as 8.7 r·s^(-1).

关 键 词：高超声速制导炮弹 尾翼式 低速自旋 稳定性 弹道特性 

分 类 号：V211[航空宇航科学与技术—航空宇航推进理论与工程]