Small Caliber Grenade Ammunition Tail Rudder Roll Angle Variable Structure Control Method
In response to the problems of small caliber gun grenade based on tail rudder with short flight time,numerous aerodynamic uncertainties,and difficulty in establishing an accurate model.A variable structure con-trol method was proposed.This method established a state space to describe the rolling angle motion of the tail rudder of small caliber gun grenades when exist aerodynamic interference,By selecting appropriate switching planes and approaching laws,a rolling attitude variable structure controller was designed,which had the advan-tages of fast response,insensitivity to parameter and disturbance changes,and no need for online system identi-fication.The simulation results showed that,compared with traditional PID control methods,the designed varia-ble structure controller had smaller initial response oscillations and higher control accuracy,and aiso had strong robustness,which effectively improving the strike accuracy.
gun grenadesballistic correctionPID controlvariable structure control
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维普
