| With the rapid development of science and the rapid progress of the times,Great changes have taken place in the form of war,modern warfare tends to large space,small scale,precision strike,Precision strike not only could improve operational efficiency,but also could effectively reduce accidental injury and accidental bombing Two dimensional correction projectile is a kind of guided munitions developed in modern times,Two dimensional trajectory correction technology can greatly improve the artillery strike accuracy and combat strength,Two dimensional trajectory correction technology is an important research direction in the future of related fields in various countries.According to the mechanism and realization method of two-dimensional trajectory correction,determined the overall layout of the trajectory correction fuze,According to analysis the key structure of trajectory correction fuze,determine the fixed canard configurations layout,and design the rotating attitude modified motor of Canard,and established mathematical model of modified motor,Using the chopper control principle to control the electromagnetic torque output of the modified motor,and gives the relationship of duty cycle and electromagnetic torque.Firstly,in order to realize the real-time detection of the corrected rudder’s roll angle during the trajectory correction,a magnetic sensor and a holzer sensor are reasonably arranged in the effective space of trajectory correction fuze.On this basis,a method combining the magnetic sensor and the holzer sensor to measure the rudder’s roll angle of the canard is proposed.Secondly,according to analyzing the force condition of the fixed canard,determined the control method of the rudder’s roll angle,and the roll angle of the fixed canard is precisely controlled by the PID control algorithm.Finally,make the corrective control scheme,Use test protoye to simulate the control experiment of rudder’s roll angle in the high speed swivel table,According to simulate rudder’s despinning control and control rudder’s roll angle in the trajectory correction to verify control method of rudder’s roll angle and motor control method is appropriate or not,analysis the experimental data and put forward the improvement plan. |
