| This paper studies theoretical and applied aspects of the problem of dynamics and kinematics modeling of the underwater powerless submarine launched missile carrier and launch hydrodynamic environment on the trajectory of the underwater powerless submarine launched missile carrier.The paper complete establishment of dynamic and kinematics modeling of underwater trajectory of the underwater powerless submarine launched missile carrier,detailed analyze the fluid motive force underwater powerless submarine launched missile carrier suffered. Fluid motive force is divided by the shell and finny rudder,then is divided into three types by the form of movement of the underwater powerless submarine launched missile carrier. And coefficients of fluid motive force are computed. The paper simulates the underwater trajectories under different situations; verify the validity of the underwater trajectory modeling.The paper establishes a water-exit movement numerical model. Calculation methods of the fluid motive force underwater powerless submarine launched missile carrier suffered in the water-exit program and the added mass of carrier are given added. And the water-exit movement of the underwater powerless submarine launched missile carrier which is horizontally vertically launched is simulated. The paper analyzes the impact of the initial attack angle and initial angular on water-exit attitude.Finally, taking into account the complexity of the marine environment, underwater trajectory of the underwater powerless submarine launched missile carrier will be interfered; the water-exit of trajectory underwater powerless submarine launched missile carrier will also be impacted by waves. The paper establish a mathematical model of ocean currents and waves, the underwater trajectory and water-exit trajectory of are simulated under the ocean currents and wave interference, The effects of ocean current and wave that affect the missile is studied based on the front work.
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