Publications

Wang, S., Karmakar, D. and Guedes Soares, C. (2016), “Hydroelastic impact of a horizontal floating plate with forward speed”, Journal of Fluids and Structures, Vol. 60, pp. 97-113

The hydroelastic responses of a horizontal plate impacting with the water at both forward and downward speeds are investigated theoretically. The longitudinal bending behavior of a horizontal elastic plate is approximated by the behavior of longitudinal strips represented as an Euler-beam model. A simplified method of hydroelastic responses of the plate is extended to the cases with forward speed and compressive force, for which the hydrodynamic pressure is found by solving a two-dimensional boundary value problem based on the linearized wave theory. In order to validate the theoretical model for the predictions of the hydrodynamic pressure and deformations of the horizontal plates impacting with water at vertical velocities, a fully-coupled algorithm in LS-DYNA and the available experimental measurements are used to. The effects of the forward speed and compression force which can occur for example in the ships bottom, are investigated theoretically for the plates with different edge boundary conditions. The critical values of the forward speed and longitudinal compression are discussed regarding the plates with various longitudinal lengths.

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