Flight Performance Of High-Rolling Projectile With Moving-Mass Control

Aiming at the high spinning projectile that adopted variable centroid control,considering the Moving-Mass moving at Six Degrees of Freedom,based on Newton mechanics established the more systematically model of high spinning projectile that concluding Moving-Mass and projectile,and simplified the model based on reasonable supposition and physical truth.Deduced the high spinning projectile equation of the angle of attack,and solved the equation of the angle of attack,and then analysis both the rolling and the moving of the Moving-mass influence of the stability and the trajectory of high spinning projectile.Taking the angular acceleration of Moving-mass as control part,based on the slide mode theory designed the controller that have robustness.Reasonable assuming the relationship between rang and laterodeviation and the displacement of high spinning projectile,and confirm the coefficient of association through the simulation and then got the equation of drop point prediction.Considering the weight of the Moving-Mass can affect the coefficient of the equation of drop point prediction.and seek the relationship between the coefficient and weight of Moving-Mass through simulation.Finally,got the relationship about the three displacements and weight of moving-mass.Aiming at the rang and laterodeviation that to be revised,based on the equation of drop point prediction,setting the moving restrain of high spinning projectile,Regarding the displacement as the goal function,established the optimize problem,and used gene arithmetic to optimize the results,At last,got the motion style of Moving-Mass that can satisfy both modify requirement and the minimum displacement.