Simulation Analysis of Underwater Motion Process of Submarine Launched Missile

To ensure a submarine launched missile exceeding water successfully under uncertain ocean conditions,a mathematic model of submarine launched missile moving under or exceeding water,were established.The underwater motion of cold or hot launched missile with uncontrolled state,completely PID controlled state and segmented fuzzy-PID controlled state,were analyzed by simulation.The results show that the wave effect on the attitude of missiles exceeding water is small under relatively peaceful ocean states,intensive ocean states are not suitable for launching missiles,furthermore,the segmented fuzzy-PID controller can control the missile attitude more effectively than the completely PID controller under uncertain ocean states.