Determination of Dynamics Model Parameters Based on Water Tank Experiments of an Oscillating Water Column Wave Enery Generator Installed on a Double-Slit Breakwater

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  • 二重スリット防波堤に設置した振動水柱型波力発電装置の水槽実験に基づく力学モデルパラメータの決定

Abstract

<p>In this study an oscillating water column device utilizing a double slit breakwater is focused. Former research clarified that the oscillating water-column wave generator installed in a double-slit breakwater has qualitative characteristics similar to those of a two-degree-of-freedom vibration system in which the water column in the slit playroom is considered the mass point. In order to simulate these characteristics as a superposition of modes, the modal damping ratio, eigenangular frequency, and mode amplitude ratio are obtained. For this purpose, free vibration experiments were conducted on a power generation system, parameters were identified using variational mode decomposition, and simulations were performed from these parameters to reproduce waveforms similar to the experimental results.</p>

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