| With the increasingly fierce competition in marine resources development,marine environment monitoring and communication has gained increasing attention.The establishment of deep-sea monitoring and communication networks has always been a challenge for all countries in the world.The design of the floating body was carried out on the basis of the earlier floating body.The earlier floating platform was anchored in the ocean.It can only be applied to the sea with shallow depth,and the cost of the anchor system is high,almost equal to the price of the floating body.From the perspective of deep sea development and cost saving,the design of floating body in the subject is started.The main research contents and methods are as follows:The difficulty of the deep-sea floating body is how to stay in the deep sea for a long time,and the cost of the steel cable is too high or even too deep to be used,and the conventional dynamic positioning platform stay requires a lot of fossil fuel to provide power and can not work for a long time.Considering the difficulties and the requirements of the platform,a dynamic positioning platform that uses the power of the ocean energy is designed.The platform does not need accurate positioning.It only needs to keep the position in a specific range.So the wave glider and the sailing boat was introduced for the conceptual design.Because wind energy and wave energy at sea are endless,it can provide power for the platform for a long time.This paper mainly carries on the design and analysis of the hydrodynamic part.The conceptual model is designed to the platform size that has been successfully launched in the past,and the main floating body is designed to be two flake streamlines,which is not only conducive to reducing the resistance of advance but also conducive to the installation of the wing plate.The design principle is that the wave drives the floating body to lift up and down,and the wing plate which is connected with the flake body swings because of the action of the water flow.According to the principle of the airfoil,the forward thrust will be generated,and then the floating body will be driven,and the floating platform will be equipped with the control system to carry on the steering and make the floating platform work in a specific range.Then the fluid analysis of streamline flow line selection,fluid analysis of wing plate airfoil comparison and type selection,and the selection and analysis of waterline area are carried out.After analysis,the design dimensions and structural forms of the floating platform are determined.In the overall analysis stage,the stability check of the floating platform was carried out because of the floating body that accords with the specification can be put into use.The influence of the hydrofoil spacing on the hydrodynamic performance of the wing is analyzed,and the most suitable spacing is selected.Mathcad numerical simulation isused to calculate the propelling capacity of the wing before the final simulation.Finally,the overall performance analysis stage,using the innovative active and passive iterative methods to carry out the overall propulsion capacity calculation,to prove the feasibility of structural design.In the propulsion optimization stage,the spring damping optimization is added to the wing plate motion,which proves that its hydrodynamic performance is superior to the structural design form of the wave glider.In this paper,the preliminary design of the water part of the new dynamic positioning platform is completed,which proves the rationality of the structure form.It provides a reference for the follow-up dynamic positioning platform to promote the energy supply and the design of the deep-sea platform.The unique method is used to solve the multi body coupling motion,and the spring is added to improve the efficiency of the wing plate,which provides the solution ideas and the design method for the later scholars. |
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