The survivability of a 1:20 scale point-absorbing Wave Energy Converter (WEC) model is considered in extreme wave tests with focused waves embedded in regular wave backgrounds and with time series of irregular waves. The wave heights were many times higher than the maximal stroke length of the device. Three different float geometries were used in the tests. The peak loads were measured and compared for extreme waves embedded in background waves with a range of periods and phase relations and with different values of Power Take-Off (PTO) damping.
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Göteman et al. (2015) studied this question.
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