Study on Trajectory of Electric Power Torpedo Launched by Battery Activated Outside Tube

To investigate the effect of launch parameters on trajectory of electric power torpedo launched by battery activated outside tube, a model of torpedo movement in vertical plane is established, and initial condition is set according to activation condition outside tube. Simulation of the trajectory of electric power torpedo is conducted with Simulink. The results show that the rudder angle of torpedo, the battery activation time, and the initial velocity of torpedo all affect the trajectory of torpedo. The rudder angle ought to be set positive when torpedo is launched downwards,or set negative when torpedo is launched upwards to gain perfect trajectory. Meanwhile, shorter battery activation time and higher initial velocity of torpedo are necessary.