格栅舵控制巡飞导弹侧向动态特性分析  

Lateral Dynamic Characteristics Analysis of Cruise Missile Controlled by Grid Fin

作　　者：许兆庆[1] 吴军基[1] 薛晓中[1] 

机构地区：[1]南京理工大学能源与动力工程学院,南京210094

出　　处：《火力与指挥控制》2012年第8期124-126,132,共4页Fire Control & Command Control

基　　金：国家部委重点预研基金资助项目(102080403)

摘　　要：对某型采用格栅舵进行控制的巡飞导弹进行了侧向动态特性分析;通过对飞行时格栅舵偏转提供的偏航与倾斜控制力进行研究,采用小扰动线性化理论对气动力、气动力矩与运动方程进行了线性化,选取巡飞初始状态为特征点,计算了该状态下各系数的值,建立了侧向扰动运动方程组;由扰动运动方程组分析了自由扰动运动的稳定性和运动特点,求得以舵偏为输入的各偏量传递函数,得到舵阶跃偏转下的动态响应;结果表明,在该状态下,巡飞导弹具有侧向稳定性,倾斜转弯的机动能力要远远大于侧滑转弯。The lateral dynamic characteristics of certain cruise missile controlled by grid fin is investigated in this paper.The aerodynamic force of grid fin is analyzed when the fin steers is in flight,and then the aerodynamic force and aerodynamic moment along with movement equations are linearized based on the small disturbance linear theory,the beginning state of the cruise is chosen as the feature point,and then the values of dynamical coefficient are calculated,upon that the lateral disturbance equations are established.The stability and movement characteristic analysis are performed through solving the disturbance equations.By the same method,the transfer functions and the dynamic responses under the fin＇s step deflection are obtained.The results indicate that the grid fin can provide favorable stability,and the maneuverability of Bank-to-turn is much larger than Skid-to-turn.

关 键 词：巡飞导弹 格栅舵 侧向动态特性 

分 类 号：V212.12[航空宇航科学与技术—航空宇航推进理论与工程]