【作者】 徐涛；

【导师】 陈少松； 谭献忠；

【作者基本信息】 南京理工大学 ， 兵器发射理论与技术， 2008， 硕士

【摘要】 本文主要讨论了鸭式布局弹箭的滚转力矩特性,分析了鸭舵下洗的机理及其影响。共设计六套弹箭组合模型,通过风洞实验的方法得到了跨音速、超音速下六套弹箭组合模型的气动力数据,由实验数据分析了弹箭滚转特性、升力特性、阻力特性、俯仰力矩特性随马赫数以及攻角的变化规律,比较了不同的鸭式气动布局给上述气动特性带来的变化。分析结果表明,对于常规的鸭式布局弹箭,当鸭舵做副翼偏转进行滚转控制时,弹箭上会产生数值比较大的反向诱导滚转力矩,使鸭舵难以进行滚转控制,然而,增大鸭舵展弦比、鸭舵后掠,都减小了作用在尾翼上的反向滚转力矩,布局合理甚至能够完全消除副翼的反效现象。因此,通过改变气动布局设计,包括改变尾翼形状等等,可以提高鸭式布局弹箭的滚转控制效率,使鸭舵对弹箭进行有效滚转控制,布局的变化同时使弹箭的升力特性、阻力特性、俯仰力矩特性发生了变化,从而为弹箭的气动布局设计提供了一定的帮助。更多还原

【Abstract】 In this thesis, the rolling moment characteristics of canard missiles are studied, the mechanism and influence of downwash of canard is analyzed. First, I design six groups of missile model, then process them by steel. Wind tunnel investigation is conducted on this six different canard configuration models over the range of Mach from 0.8 to 2.5. Based on the experiment data, I analyze the regulation of rolling characteristics, lift characteristics, drag characteristics and pitching moment characteristics with Mach number and angle of attack, and the effect of these characteristics for different canard configurations is compared. The results indicate that canards are ineffective as rolling control devices for normal canard missiles, because noticeable reverse rolling moments are induced when the canards have rolling command deflection. With canard of big aspect ratio, and sweep angle, the reversed induced rolling moments could be reduced, even the phenomenon of anti-effect has disappeared completely when the configurations are logical. Wind tunnel experiments show that some new configurations improve the rolling control efficiency, allowing the canard to execute the rolling control, with the change of configurations, its lift characteristics, drag characteristics and pitching moment characteristics also change. So, it is helpful for aerodynamic configuration design of canard missiles.更多还原