Based on the practical needs of offshore photovoltaic systems
various floating wave-dissipation structures were designed and tested in a two-dimensional large-scale wave tank under irregular wave conditions. Time-domain response signals were measured
and the wave transmission coefficient
reflection coefficient
and wave energy dissipation coefficient were analyzed. The study demonstrates that compared to single-floating-box breakwater
increasing the width of a single floating box
adding additional floating boxes
and incorporating vertical insert plates or wing plates on the bottom can significantly enhance wave energy dissipation and improve wave attenuation. For the designed double-floating-boxes structure
each 0.5 m increase in the slanted wing depth reduces the transmission coefficient by an average of 15%. Additionally
installing a porous plate between the pontoons further reduces the transmission coefficient. Under irregular waves with an effective wave height of 2 m
the wave energy transmitted through the dual-pontoon floating breakwater with wing plates and porous insert plates is only 12% left
meeting the wave attenuation requirements for offshore floating photovoltaic power stations.
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