不同尾翼结构火箭弹动态气动特性数值研究  

Numerical study on dynamic aerodynamic characteristics of rockets with different tail structures

作　　者：甘语怀 杨丽君 罗念 王纪林 王元豪 GAN Yuhuai;YANG Lijun;LUO Nian;WANG Jilin;WANG Yuanhao(South Technology and Engineering Research Institute,Chongqing 400039,China)

机构地区：[1]西南技术工程研究所,重庆400039

出　　处：《兵器装备工程学报》2023年第6期114-119,共6页Journal of Ordnance Equipment Engineering

摘　　要：动导数是关乎火箭弹动态飞行稳定性的一个重要因素,为探究不同尾翼结构火箭弹在不同飞行状态下火箭弹动导数的变化,以3种尾翼结构火箭弹为研究对象,通过仿真计算,对比分析了3种尾翼结构火箭弹的俯仰组合动导数,结果表明:在小攻角范围内,攻角越大,3种尾翼结构火箭弹动态飞行稳定性越高;增加卷弧翼的数量后,卷弧翼火箭弹动态飞行稳定性提高;同时,平板尾翼火箭弹的俯仰组合动导数绝对值小于卷弧翼火箭弹,动态飞行稳定性低于卷弧翼火箭弹。The dynamic derivative is an important factor related to the dynamic flight stability of a rocket.In order to explore the changes of the dynamic derivative of the rocket with different tail structures under different flight states,this paper takes three tail structures as the research object.Through simulation calculation,the pitching combined dynamic derivatives of the three tail structures are compared and analyzed.The results show that,within the range of a small angle of attack,the larger the angle of attack is,the higher the dynamic flight stability of the rocket with the three tail structures is.When the number of wrap-around wings increases,the dynamic flight stability of the rocket with wrap-around wings improves.At the same time,the absolute value of the pitching combined dynamic derivative of a flat tail rocket is smaller than that of a wrap-around wing rocket,and the dynamic flight stability of a flat tail rocket is inferior to that of a wrap-around wing rocket.

关 键 词：动导数 火箭弹 俯仰组合动导数 卷弧翼 动态飞行稳定性 

分 类 号：TJ714[兵器科学与技术—武器系统与运用工程]