论文标题
球形可变波能转换器的动态建模
Dynamic Modeling Of Spherical Variable-Shape Wave Energy Converters
论文作者
论文摘要
在最近引入的可变形状波能转化器中，浮标会因积极的变化而改变其形状。在这项研究中，使用Lagrangian方法开发了球形可变波能转换器的动态模型。经典弯曲理论用于使用Love的第一个近似来编写柔性身体的应力 - 应变方程。假定弹性球形壳具有轴对称振动行为。采用了雷利 - 里兹离散方法来找到球形壳振动模型的近似解决方案。使用MATLAB进行单向流体结构的交互模拟，以验证开发的动态模型，并研究在波能转化器中使用柔性浮标对其轨迹和功率产生的效果。
In the recently introduced Variable-Shape heaving wave energy converters, the buoy changes its shape in response to changing incident waves actively. In this study, the dynamic model for a spherical Variable-Shape Wave Energy Converter is developed using the Lagrangian approach. The classical bending theory is used to write the stress-strain equations for the flexible body using Love's first approximation. The elastic spherical shell is assumed to have an axisymmetric vibration behavior. The Rayleigh-Ritz discretization method is adopted to find an approximate solution for the vibration model of the spherical shell. One-way Fluid-Structure Interaction simulations are performed using MATLAB to validate the developed dynamic model and to study the effect of using a flexible buoy in the wave energy converter on its trajectory and power production.
