Model Establishment and Simulation Analysis of Corrected Projectile Track with Canard Rudder
In order to study the correction ability of canard rudder type correction mechanism,the control force and control torque of canard on the projectile and the aerodynamic force acting on the projectile were analyzed based on the model of a certain caliber high-speed rotating stabilized projectile.At the same time,on the basis of the theory of exterior ballistics of the projectile,the mathematical model of the seven degree of freedom rigid body motion equation of canard rudder type correction projectile was established through the characteristics of the common coordinate systems of exterior ballistics and the conversion relationship between them.Based on the results of aerodynamic analysis,the fourth order Runge-Kutta method is used to calculate the external ballistic parameters of the corrected projectile,obtain the simulated trajectory,and preliminarily compare it with the actual trajectory.The results indicate that the simulation analysis of the duck rudder correction mechanism is consistent with the actual trajectory,and can predict the correction ability.
canard-rudder correction projectileaerodynamicseven degree of freedomtwo-dimensional correction
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