一对鸭舵控制下的弹箭角运动特性仿真研究
首发时间:2009-04-16
摘要:在带一对鸭舵的有控弹箭的研制过程中,鸭舵控制对弹体角运动特性具有何种影响是一个重要的实际问题。针对低旋尾翼弹,分别建立了鸭舵瞬时控制力和平均控制力作用下的弹道仿真模型,在此基础上,分析了鸭舵瞬时偏转下弹箭的角运动过渡过程;比较了两位置和三位置舵控方式对弹体的作用效果;研究了转速及其他因素对攻角变化的影响。仿真结果表明,鸭舵气动外形参数、舵控方式及弹丸转速等因素,对弹箭角运动特性均有不同程度的影响,在实际工程中须作为可控参数加以合理设计。
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Simulation of Angular Motion Characteristics for a Projectile Equipped with a Pair of Canards
Abstract:During the development process of the controllable projectile with a pair of canards, what influence the canard control have on the projectile angular motion is an important and practical problem. Aiming at the finned projectile with low spin velocity, trajectory simulation models were established with the action of instantaneous and average canard control respectively. The transient process of angular motion with the canard deflection was analyzed. The effect of two-position and three-position actuators on the projectile was compared. The effect of spin velocity and some other factors on variation of angle of attack were studied. The simulation results show that the canard aerodynamic shape parameters, the actuators, and spin velocity have influence on projectile angular motion with different degrees, which need to be designed reasonably in the practical engineering.
Keywords: canard control trajectory model angular motion angle of attack controllable trajectory
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No.3145017375112398****
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