火箭弹发射试验锥形运动稳定性分析  

Stability Analysis of Conical Motion for Rocket Launching Test

作　　者：颉凯平 畅仲仁[1] 郑书娥[1] 

机构地区：[1]中国空空导弹研究院,河南洛阳471009

出　　处：《弹箭与制导学报》2016年第4期44-46,共3页Journal of Projectiles,Rockets,Missiles and Guidance

摘　　要：由于舵翼面安装误差、发动机推力偏心及各种随机扰动的综合影响,火箭弹有可能出现较大幅度并发散的锥形运动导致试验失败。文中通过锥形运动的机理分析,提出当纵横向运动频率接近或交叉且弹体振荡幅度较大时才会出现锥形运动发散。仿真结果表明,通过火箭弹纵横向运动频率及振荡幅度的数学仿真,可给出舵翼面安装误差及发动机推力偏心的控制要求。Due to influences of installation error of rudder and wing, engine thrust misalignment and random disturbance, conical motion with large amplitude and divergence may occur to rocket projectile, which causes test failure. In this paper, mechanism of conical motion was analyzed. When longitudinal and transverse movement frequencies close or cross and amplitude of missile body is larger, the conical motion divergence is presented. Simulation results show that through mathematical simulation of longitudinal and transverse movement fre- quencies and oscillation amplitude of rocket projectile, the control requirements of wing surface mounting error and engine thrust misalign- ment are given.

关 键 词：火箭弹 锥形运动 频率 振荡幅度 

分 类 号：TJ760[兵器科学与技术—武器系统与运用工程]