Structure Design Of Hybrid-driven Underwater Glider With Water Jet Propulsion

The hybrid-driven underwater glider(HAUG)which is added to the water jet propulsion have the advantages of high speed and flexibility,while inheriting the advantages of the traditional underwater glider.In this paper,the mechanism design and optimization of a hybrid-driven underwater glider with water jet propulsion are studied and the simulation motion analysis is carried out.The main research works are as follows:(1)The principle of the hybrid-driven underwater glider with water jet propulsion is analyzed,and the overall design of the glider is carried out.(2)Optimize the shape design of the hybrid-driven underwater glider with water jet propulsion.By comparing the CFD simulation of classic aircraft,the main body of the rotor with excellent hydrodynamic performance and good processability was selected.The effect of different airfoil,chord length,sweep angle and span length on the hydrodynamic performance was studied by CFD simulation,also horizontal wings and tail fins are optimized for the whole hydrodynamic performance of the aircraft,then made a reasonable layout,finally the overall shape of the glider with good water resistance performance is obtained.(3)Kinematics modeling and simulation.Firstly,the motion of the hybrid-driven underwater glider is studied.The hydrodynamic performance of HAUG at different flow angles,angles of attack and different drift angles was studied by theoretical analysis and FLUENT hydrodynamic simulation,some necessary hydrodynamic parameters of HAUG were obtained,the results also show that the relationship between the drag force,lift force,yaw moment and navigation speed,angle of attack,drift angle of different sailing States,Which provides a reference for the design and control of internal adjustment mechanism of HUAG.In the design of each component are based on specific performance indicators to make a reasonable calculation and analysis,given a reliable and reasonable design.(4)Design of mechanical structure of HAUG.Including the rational layout design of HAUG modular cabin,the shell design,the design of sealing andconnecting,the calculation of the pitch attitude adjusting mechanical structure,the design of the buoyancy adjusting mechanism,design of water jet propulsion mechanical system of stern,In the design of each component are based on specific performance indicators to make a reasonable calculation and analysis,given a reliable and reasonable design.