Research On Optimization Technology Of Glide Trajectory For Rocket

Gliding projectile is a new kind of intelligent ammunition which optimizes and improves the trajectory of conventional projectiles and achieves the aim of increasing range and increasing the power.The main purpose of gliding bombs was to improve the range of ammunition and achieve the precision of long distance.to increase the range of munitions,and was the main direction for the development and research of trajectory correction.The core content of the gliding missile research was the ballistic optimization problem.The optimization result directly related to the extended range performance of the gliding missile.Gliding trajectory optimization has always been a research hotspot in the field of The rocket weapon.In this paper,the study of the glider was using a cross-shaped duck rudder to control the rocket.Firstly,the law of force,moment and angle of attack of the gliding missile in flight trajectory was analyzed,and a six-degree freedom model of gliding missile trajectory was established.Then the external trajectory design was performed using the gliding principle controlled by the angle of attack,and the trajectory program was written using C++ language.An optimization platform was built in the Isight software.The variation of the angle of attack over time was the design variable,and the maximum ballistic range was the optimization goal.The combined algorithm was used for ballistic optimization.The global optimization was used to determine the suboptimal ballistic range.On the basis of the suboptimal solution,different numerical algorithms were used to locally find the optimal range to get the corresponding angle of attack time variation law.The optimization results show that the rate of overreaching reaches 69.5%,which can provide theoretical basis and reference for the parameter design of gliding missiles.The trajectory of another gliding missile was optimizedwith the same optimization strategy,and the renewal rate reached 85%,verifying the versatility of the optimization scheme.This paper has certain reference value for the trajectory optimization research of gliding missile.