Study On Two-dimensional Correction Control Technology And Guidance Algorithm For Dual-spin Projectile With Crossed Canaed

In today's information warfare,precision strike ammunition is an indispensable part,but its high development costs and low cost-effectiveness make it impossible for most countries to apply it to war on a large scale.Therefore,in order to meet the needs of modern warfare,experts have simplified the traditional conventional ammunition into a trajectory correction projectile.The two-dimensional correction projectile is a kind of guided munition developed in modern times.Its two-dimensional trajectory correction technology can greatly improve the striking accuracy of projectile,and it is an important research direction in the future of related fields in various countries.In this paper,the canard guided dual-spin projectile is taken as the research object,and its two-dimensional trajectory correction control technology is deeply studied.The integrated guidance control algorithm of TT and IPP is proposed.Firstly,according to the two-dimensional trajectory correction control principle,the overall scheme of the trajectory correction fuze is proposed,and the structure layout of the trajectory correction fuze is determined,and the correction strategy of the trajectory correction system is formulated.Then,in order to further study the two-dimensional trajectory correction control technology of the dual-spin projectile,the force and torque on the projectile are analyzed during the actual flight.And according to the Newton's second law and the moment of momentum theorem,combined with the modeling method of the conventional projectile,the rigid body trajectory model of the dual-spin projectile has been established.At the same time,the relationship of the roll angle of the fixed canard between the trajectory correction ability and the correction direction angle is analyzed through simulation.Finally,the specific implementation process of TT,IPP and the integrated guidance control algorithm of TT and IPP is studied.And these three guidance control algorithms are applied to a caliber dual-spin projectile.The trajectory simulation and Monte Carlo target simulation experiment of different ranges are carried out by using the established rigid body trajectory model.Through the trajectory simulation results,it is found that the integrated guidance control algorithm of TT and IPP has stronger guidance ability than the TT or IPP guidance control algorithm,and the two-dimensional trajectory correction effect of the dual-spin projectile is better.Moreover,the simulation experiment results of Monte Carlo targeting show that the integrated guidance control algorithm of TT and IPP has smaller impact point scatter area and better correction.It is verified that the integrated guidance control algorithm of TT and IPP can greatly improve the trajectory correction ability of the dual-spin projectile,and make the projectile have higher striking accuracy,which has important theoretical research significance and practical significance.