【摘要】 针对传统单自由度浮子式波浪能转换装置转换效率不高的问题,文章设计了一种能吸收浮子垂荡和纵荡运动能量的二自由度波浪能转换装置,并开展了该装置的仿真分析。首先以单自由度转换装置引出二自由度转换装置的设计思路,然后建立波浪能转换装置的计算模型,并运用AQWA和WEC-Sim软件开展单自由度转换装置模型的计算和验证工作;在此基础上开展二自由度转换装置的仿真计算,对比了单自由度与二自由度转换装置的运动响应和发电效率,并分析了二自由度转换装置发电效率的影响因素。结果表明,二自由度转换装置运行平稳,与单自由度转换装置相比,运动响应和发电效率明显增大,发电效率最高可达29.6%。更多还原

【Abstract】 In view of the low conversion efficiency of the traditional single-degree-of-freedom(SDOF) float type wave energy converter, a two-degree-of-freedom(2-DOF) wave energy converter which absorbs heaving and surging energy of floater is designed herein, followed by simulation analysis of the device. Firstly, with the design idea deriving a 2-DOF conversion device from the SDOF conversion device, a calculation model is established for the wave energy conversion device. Then, AQWA and WEC-Sim are used for calculation and verification of the SDOF conversion device; on this basis, simulation calculation is conducted for 2-DOF conversion device. Finally, a comparison is made on the motion response and power generation efficiency between SDOF and 2-DOF conversion device, with analysis of influencing factors of power generation efficiency of 2-DOF conversion device. The results suggest that the 2-DOF conversion device operates smoothly and stably and that it achieves significantly greater motion response and power generation efficiency compared to SDOF conversion device, with a maximum power efficiency of 29.6%.更多还原