Underwater Trajectory Design of Rocket-assisted Torpedo

In order to launch rocket-assisted torpedo with submarine torpedo tube , the general scheme and trajectory plan of the submarine-launched rocket-assisted torpedo carrier were presented , and the underwater trajectory mode of this torpedo inclining to leave water and yawing to elude submarine was designed. A model of the rocket-assisted torpedo carrier with six degrees of freedom was built based on the momentum and momentum moment theorem , the control rule of the underwater trajectory was put forward, and a trajectory simulation with MATLAB/Simulink was conducted. The simulation results show that the general scheme and the trajectory plan of the rocket-assisted torpedo carrier are feasible to meet the design requirements for inclining to leave water and yawing to elude submarine via controlled rudders.