Shape Optimization Design of Underwater Vehicle Based on Response Surface Model

The profile parameters of the shape of the underwater vehicle were taken as the test factors, and the drag coefficient was the objective function. The experiment sample points were determined using the Box-Behnken method. The 3D model of each set of sample points was established using SolidWorks software, and the sample data was obtained by the fluid simulation software STAR-CCM+. Using the least squares method, a second-order response surface model of the drag coefficient of the underwater vehicle was created, and the optimal parameters of the shape of the underwater vehicle were obtained. In order to verify the effectiveness of the optimization results, the optimal parameters were simulated and verified, and the error between the simulation results and the optimization results was less than 1%. Therefore, the optimization method can be applied to the optimized design of the underwater vehicle.