Study On Rolling Characteristics Of Canard-Controlled Missiles

In this thesis,the rolling moment characteristics of canard missies are studied,and theinfluence of downwash of canard was analyzed.As a result of canard fin deflections, anasymmetric downwash flow field near the tail fins was induced, producing a so calledreversed rolling moment. we simply elaborated the research progress on the canardconfiguration's aerodynamic rolling controllation in the domestic and foreign.This articlealso analyzes the method to reduce the downwash which is caused by the canard fin'srolling controllation. we got the dynamics data by the wind tunnel experiment under thetransonic.Through the data results,we analyzed the regulation of rolling characteristics fordifferent configurations is discussed.The results indicated that canards are ineffective asrolling control devices for normal canard missiles,because noticeable reverse as rollingmoments are induced when the canard had roiling commend deflection.And the canardwith a small wing before can reduce the rolling moment, even the phinomenon ofanti-effect had disppeared completely.Wind tunnel experiments show that some newconfigurations improve the rolling control efficiency,allowing the canard to execute therolling control.So,it is helpful for aerodynamic configuration design of the canard missiles.