| The exploration and development of the ocean is an important direction of modern and future development.In modern marine scientific research,in order to obtain more comprehensive and real-time marine data information,ocean observation is essential.As a simple and reliable platform of ocean observation,ocean buoy plays an irreplaceable role in ocean observation.In the early stage,the ocean buoy mostly uses battery to supply power,but the research progress of self powered technology is slow,and there is no suitable self powered system to provide protection for the ocean buoy.In this paper,nanogeneration is introduced into the utilization of wave energy,and a Nano Wave Energy Conversion is designed.It is proposed to be installed in HSQXFB ocean buoy to complete its self powered design,and its hydrodynamic and output power characteristics are explored?Firstly,the structure of HSQXFB Buoy-Nano Wave Energy Conversion is introduced.The hydrodynamic characteristics of HSQXFB Buoy-Nano Wave Energy Conversion under waves are researched by using CFD software.The hydrodynamic model of buoy is established,and the convergence verification of model grid model,grid size and time step is completed Based on the working sea conditions,multiple groups of models are constructed to change the wave height and wave period.The heave response of buoy under different wave parameters is studied.The influence of wave parameters on the heave response of buoy is analyzed,and the hydrodynamic characteristics of buoy are obtained.Then,the energy output calculation model of triboelectric nanogenerator is established,and the 2D triboelectric nanogenerator power output model is completed to explore the influence of external resistance,motion amplitude and other parameters on the output performance of the model;the power output model of 3D cylinder triboelectric nanogenerator is completed by using appropriate modeling method,and different electrode scales under the same displacement are studied The design parameters of cylindrical triboelectric nanogenerator and its arrangement in Nano Wave Energy Conversion are determined.Finally,the power output characteristics of Nano Wave Energy Conversion are studied.The relative motion solution method of the cylindrical triboelectric nanogenerator is constructed to calculate the motion response of the block of the cylindrical triboelectric nanogenerator;the output results of Nano Wave Energy Conversion under different wave conditions are calculated by using the output efficiency calculation method,the influence of different wave conditions on the output efficiency of the device is analyzed,and the target sea conditions are discussed.According to the ratio of output power,the power output characteristics of Nano Wave Energy Conversion are developed.In this paper,the research of Nano Wave Energy Conversion provides a reliable solution for the long-term self-powered supply problem of buoy,and also provides a basis and reference for solving the self-powered supply problem of other offshore platforms. |
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