Experimental study on the nonlinear pressure acting on a high-speed vessel in regular waves

摘要: It is well known that the hydrodynamic responses of a high-speed vessel traveling in regular head waves even moderate wave height can show significant nonlinear behavior, and so linear statistical techniques become insufficient for predicting statistics irregular waves. On other hand, it has been shown an approximate third-order Volterra model applicable to handling some seakeeping problems, such as motions vertical hull girder loads. In present study, focus on behavior pressure surface, especially pressures acting alternately wet dry areas near waterline bow zone with high deadrise angles may be subject slight impact water pile-up effects. To clarify validity applying modeling this problem, series experiments were carried out, fifth-order models proposed algorithm finding frequency response functions (FRFs) applied means validation. article, first part validation was performed using experimental data confirmed adequate accuracy simulate deterministically variation different steepness up amplitude wavelength ratio 0.01 highly above-mentioned surface.