This research presents an experimental investigation on hydro-elasticity in sloshing experiment. Two models were tested. One of the models is ordinary, which is considered to be rigid wall made of plexi-glass. The other model has a flexible wall made of stainless steel. The two models were operated with identical excitation so that the influence of the elasticity can be detected. Four different filling levels were tested. The magnitude of excitation was 10% of the model longitudinal length. The models were operated only in surge motion. The models were tested with several excitation frequencies. The pressures were measured at 12 locations. It was shown that the effect of hydro-elasticity increases the magnitude of impact pressures.

SummaryOcean waves can be explained in terms of many factors, including wave spectrum, which has the characteristics of wave height and periodicity, directional spreading function, which has a directional property, and random phase, which randomly represents a certain property. Under the assumption of a linear system, ocean waves show irregular behaviours, which can be observed in the forms of wave spectrum, directional spreading function, and complex phase calculations using the method of linear superposition. Ocean waves, which include a variety of periodic elements, exhibit direct proportionality between their period and propagation velocity. The purpose of this study was to understand the phase components of the period and to make exact calculations on the deterministic phase in order to make predictions on ocean waves. However, measurements of actual ocean waves exist only in the form of information on wave elevation, so we faced an inverse problem of having to analyse this information and calculate the deterministic phase. Regularization was used as part of the solution, and various methods were used to obtain stable values.

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