【作者】 邢琳琳；

【导师】 陈少松；

【作者基本信息】 南京理工大学 ， 流体力学， 2006， 硕士

【摘要】 本文讨论了鸭式布局远程弹滚转力矩特性，分析了鸭舵的下洗影响作用，鸭舵偏转在尾翼附近诱导一个非对称下洗流场，尾翼上产生反滚力矩。通过风洞实验得到了跨、超音速下六种组合模型的气动力数据，由实验结果分析了远程弹滚转特性随马赫数和攻角的变化规律，以及不同鸭式气动布局对滚转特性的影响，此外还分析了远程弹的滚转阻尼特性。结果表明，对于常规鸭式布局远程弹，当鸭舵做副翼偏转进行滚转控制时，在远程弹上产生数值很大的反向诱导滚转力矩，使鸭舵难以进行滚转控制，小展弦比鸭舵、小后掠角鸭舵和鸭舵纵向位置后移时，减小了作用在尾翼上的反向滚转力矩，甚至完全消除副翼反效现象。通过改变气动布局设计，提高了鸭式远程弹的滚转控制效率，使鸭舵能对远程弹进行滚转控制，从而为远程弹气动布局设计提供了帮助。更多还原

【Abstract】 In this thesis, the rolling moment characteristics of long range canard missiles are studied,and the influence of downwash of canard is analyzed. As a result of canard fin deflections an asymmetric downwash flow field near the tail fins is induced,producing a so called reversed rolling moment.Wind tunnel investigation is conducted on six different canard configuration models over range of Mach from 0.8 to 2.5.The experiment data analyzes the regulation of rolling characteristics with Mach number and angle of attack,and the effect of rolling characteristics for different configurations is discussed.The rolling damping characteristics are also studied.The results indicate that canards are ineffective as rolling control devices for normal canard missiles,because noticeable reverse rolling moments are induced when the canard have rolling command deflection. With canard of small aspect ratio,small sweep angle and different dimensional postions,the reversed induced rolling moments could be reduced,even the phenomenon of anti-effect has disappeared completely. Wind tunnel experiments show that some new configutiongs improve the rolling control efflciency,allowing the canard to execute the rolling control.So,it is helpful for aerodynamic configuration design of long range missiles.更多还原