Research on the reliability model of the underwater vehicle launch under the simulation environment of numerical wave tank

The high cost of the reliability test for underwater vehicle launch prompts the numerical simulation method which has become a mainstream in the process of equipment development. In this paper, the author integrated the simulation results of underwater vehicle failure mechanism with the calculation of mission reliability of underwater vehicle launch through the model research of underwater vehicle launch under the condition of complex wave, and structured underwater vehicle launch reliability model under complex wave condition, based on failure mechanism simulation environment. Furthermore, based on the basic flow field data obtained from CFD simulation, the author gained the movement parameters models on Attitude Angle, Angular Velocity and Centroid Displacement of the underwater vehicle launch process through the least squares Atting, which provides the basic input data for the reliability analysis of the underwater vehicle launch process. In the end, the author fitted simulation results into the reliability model, and presented the reliability analysis result according to the fitting results of Attitude Angle, Angular Velocity and Centroid Displacement.