摘要波浪能是一种重要的海洋能源。近年来，在海洋能源开发领域中，波浪能的开发和利用受到了越来越多人们的关注。本课题主要是分析浮标式波浪能发电装置的性能特点，对浮标式发电装置的结构组成和发电原理进行分析，总结影响发电性能的因素,并且针对发电装置中的浮标选取不同的形状进行分析比较，选择一款较佳的浮标作为设计和优化的对象。通过参考相关资料，学习相关软件，在结合自己思考的基础上做了以下工作：86630

    1。结合波浪理论对浮标式波浪发电装置中的浮标水动力性能进行了分析，总结了影响浮标发电装置性能的主要因素是浮标的形状以及浮标受到的垂直波浪力和浮标的振幅。

2。计算四种形状浮标的垂直波浪力、振幅、平均吸收功率和俘获宽度比，将四种形状浮标的这些参数进行比较，得出垂直圆柱体最好的结论。

3。分析浮标半径、吃水深度、波浪周期和海水深度对俘获宽度比的影响，得出浮标和波浪共振时俘获宽度比最高的结论，由此确定适合厦门海域的浮标尺寸。

    4。运用ANSYS Workbench有限元分析软件中的频域和时域分析模块，对四种形状的浮标进行仿真比较，分析垂直圆柱体浮标不同半径和吃水深度下的水动力性能，并对垂直圆柱体浮标的底部形状进行优化。

毕业论文关键词：波浪能，浮标、波浪力、振幅、俘获宽度比

Abstract    Wave energy is a kind of important ocean energy。 In recent years, with the development of ocean energy fields，lots of people pay attention to the development and exploit of wave energy。 This object is to analyze performance characteristics of buoy wave energy devices, analysis the composition structure and power generation principle of the buoy wave energy generation device, the object also concludes the factors which influence the performance of the power generation device and compares buoys with different shape, this object choose a buoy with a better performance for design and optimization。 By reference to relevant information and learning relevant software, I do these works with my own thinking。 

 1。 Analysis the hydrodynamic performance of the wave energy generation device with the combination of wave theory, concluding the factors what influence the performance are the shape, amplitude and wave force on the vertical direction。 

 2。 Calculating the wave force, amplitude, average absorbed power, capture width ratio of buoys with different shape, by comparing these parameters, I get a conclusion that the vertical cylinder is better than other shape

3。 Analysis the influence of buoy radius, draft depth, wave period and ocean depth on the capture width ratio of buoys, get the conclusion that when buoy has resonance with wave, the ratio is largest, and make a design the vertical buoy for Xiamen ocean。

 4。 Comparing four kinds buoy with different shape by using ANSYS Workbench frequency domain and time domain analysis module, analysis the hydrodynamic performance of the vertical cylindrical buoys with different radius and draft depth and optimizing the shape of the buoy bottom。 

Keywords: wave energy, buoys, wave force, amplitude, capture width ratio 

目  录

第一章  绪论-1

 1。1 课题研究背景1

 1。2 波浪能开发的意义1

 1。3 国内外波浪能发电装置的研究状况-4

   1。3。1 波浪能发电装置发展历程4

   1。3。2 典型的波浪能发电装置-5

   1。3。3 国外浮标式波浪能发电装置的利用现状8

   1。3。4 国内浮标式波浪能发电装置的利用近况-10