Abstract In this study, the effectiveness of an oscillating-body WEC with a tuned inerter (TI) proposed by the authors is shown through wave flume testing. The TI mechanism consisting of a tuning spring, a rotational inertial mass, and a viscous damping component is able to increase energy absorption capability by taking advantage of the resonance effect of the rotational mass. This mechanism has been recently introduced for civil structures subjected to external loadings such as earthquakes and winds to decay vibration response immediately. The authors applied this mechanism to oscillating-body WECs and showed that the proposed WEC increased the power generation performance and broadened the effective frequency range without increasing the mass of the buoy itself through numerical simulation studies. To verify the validity of the proposed WEC experimentally, a small-scale prototype of the proposed device is designed and wave flume testing is carried out with various regular wave inputs of different frequencies. The results show that the WEC with the properly adjusted TI mechanism demonstrates better power generation performance compared to the conventional WEC over a wide range of wave frequencies.

中文翻译：

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具有调谐惯性器的振荡体波能转换器的波槽测试

摘要 在这项研究中，作者提出的带有调谐惯量 (TI) 的振荡体 WEC 的有效性通过波槽测试得到了证明。由调谐弹簧、转动惯性质量和粘性阻尼元件组成的 TI 机构能够利用转动质量的共振效应来提高能量吸收能力。这种机制最近被引入到土木结构中，用于承受地震和风等外部载荷的土木结构，以立即衰减振动响应。作者将这种机制应用于振荡体 WEC，并通过数值模拟研究表明，所提出的 WEC 提高了发电性能并拓宽了有效频率范围，而不会增加浮标本身的质量。为了通过实验验证所提出的 WEC 的有效性，设计了所提出设备的小规模原型，并使用不同频率的各种规则波输入进行波槽测试。结果表明，与传统 WEC 相比，具有适当调整的 TI 机制的 WEC 在较宽的波频率范围内表现出更好的发电性能。