一对鸭舵控制的炮弹角运动特性及其影响因素  

Investigation on Angular Motion Characteristics and Its Affecting Factors for Projectile Equipped with a Pair of Canards

作　　者：常思江[1] 王中原[1] 史金光[1] 李岩[1] 

机构地区：[1]南京理工大学能源与动力工程学院,江苏南京210094

出　　处：《南京理工大学学报》2011年第1期57-61,共5页Journal of Nanjing University of Science and Technology

摘　　要：为了给鸭式布局炮弹的气动外形及弹道参数设计提供依据,研究了该类炮弹在一对鸭舵控制下的角运动特性。建立了鸭舵控制弹道模型,对一般炮弹角运动方程给出了鸭舵瞬时作用下的特解。通过仿真计算,分析了舵面偏转瞬时的攻角过渡过程及其影响因素,研究了弹体转速等对攻角特性的影响。结果表明,不同鸭舵气动外形参数对应的攻角过渡过程差异较大;弹体转速及最大飞行斜距对炮弹飞行稳定性的影响较为显著;当弹丸速度很大时,质心控制方位对最大攻角幅值的影响较小。In order to provide evidence for designing the aerodynamic shape and ballistic parameters of a projectile equipped with canards,the angular motion characteristics under the action of a pair of canards is investigated.The trajectory model with canard control is established.Based on the general angular motion equation,the special solution is obtained concerning the instantaneous action of canards.The transient process of angular motion is analyzed as well as its influencing factors.The effect of spin rate and some other factors on the variation of angle of attack is also discussed through the simulation.The results indicate that there exists great differences among the transient processes with different aerodynamic shape parameters of canards;the spin rate and the maximum flight slant range have significant influence on the flight stability;the correcting direction has a little influence on the maximum amplitude of angle of attack when the projectile velocity is relatively great.

关 键 词：飞行器控制 导航技术 鸭舵控制 弹道模型 角运动 攻角 有控弹道 

分 类 号：TJ765.4[兵器科学与技术—武器系统与运用工程]