Design Method and Research on Electrohydraulic Hybrid Propulsion System for Large Underwater Robots

In order to optimize the performance and reduce energy consumption of the propulsion system of underwater robots, a large underwater robot is taken as the research object. Preliminary design of the propulsion system based on thruster layout design, prediction of speed effective power and allocation of thruster effective power. With the STAR-CCM as an analysis tool, the hydrodynamic characteristics of the underwater robot are calculated using finite element analysis to determine the thrust reduction coefficient of the thruster in different directions, Calculate the mooring thrust and obtain the maximum speed for different heading by comparing and analyzing the total effective thrust power of different heading and the effective power of underwater robots. Therefore, using the above analysis and calculation method and continuous iterative optimization, the optimal parameters of the propulsion system can be effectively determined, providing strong technical support for the design and optimization of the propulsion system of large underwater robots.