| Rocket projectile,as a kind of conventional ammunition carried the feature of simple structure,long range,strong power and fierce fire which can attack military bunkers,armored vehicles and other fixed or moving target is always the standard arm of most equipment in various countries.Traditional rocket can only hit the target surface resulted in error of projectile,it has become a hot weapons research that through the uncontrolled rocket equipped with trajectory correction system in order to enhance the attack precision of rocket. The object of this paper is to use the "ten" type of wing aerodynamic configuration of the micro spiral trajectory correction rocket.First,we preliminary design and estimate gas dynamic appearance of the canard wing rocket,power distribution and canard wing shape and size data,then use the fluent simulation calculated the aerodynamic parameters of 122 mm prototype rocket projectile and canard wing rocket, find out the relationship between canard wing rocket missile aerodynamic parameters and Mach number, angle of attack of the numerical,calculate and analyze the law between canard wing deflection of control force and Mach number. Analyze the canard wing rocket which using canard control principle and calculates the relationship between its control force and a width adjusting angle,respectively with canards and the rocket by the force and torque as the starting point, establish a canard wing rocket transient 6D canard wing rocket motion model. And then create canard wing rocket in the six degree of freedom trajectory ballistic model,and take the way of modified proportional guidance law which only requires the use of artillery radar measurement data can correct. canard wing rocket trajectory.Finally, use the Monte Carlo method to test canard wing rocket and study the firing accuracy and dispersion,and work out that canard wing rocket CEP is only 3.8 meters, it is significantly improves the attack precision of rocket compared to the uncontrolled rocket.
|
PDF Full Text Request