Research On Mathematical Model And Analytical Method Of 2-D New Pendulum Wave Energy Conversion Device

As a clean renewable energy source,ocean wave energy is a main direction of new energy development.The buoyant pendulum wave energy conversion device has characteristics of high conversion efficiency,strong wave resistance and good expansion performance,so it has a good development prospect.When studying the pendulum wave energy device,the basic research related to the hydrodynamic coefficient is indispensable.This paper is aimed at the research of fixed pendulum wave energy conversion device.The main research is as follows:1.Based on the existing bottom-pivoted flap device,this paper designs a new and efficient pendulum wave energy conversion device for the energy loss and hydrodynamic characteristics of the existing device,and establishes mathematical model of kinematics?dynamics and energy conversion for the device;2.Analytical solution method about new pendulum wave energy conversion device is established for the mathematical model of kinematics and dynamics,the analytical expressions are derived,It includes the hydrodynamic coefficient of the device,the angular amplitude of the pendulum device,the received torque and the device capture width ratio;3.After the analytical solution of the new pendulum wave energy device is given,the corresponding simulation calculations are given for the analytical solution of the hydrodynamic coefficient and corner amplitude.The relationship between the hydrodynamic coefficient of the device and the water depth,and the relationship between the pitch and the device parameters are analyzed.These give a certain reference value for the final study of the relationship between the hydrodynamic coefficient and each parameter;4.According to the changes of plate density,elastic coefficient,water depth and other parameters to study the change of the device capture width ratio,so the performance of the pendulum wave energy device is analyzed.Finally,the capture width ratio of the existing device to the new device is compared to verify the utility of the device.