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Publications
Rajendran, S., Fonseca, N. and Guedes Soares, C. (2015), “Calculation of vertical bending moment acting on an ultra large containership in large amplitude waves”, 34th International Conference on Ocean, Offshore and Arctic Engineering (OMAE 2015), 31 May-5 Jun, St. John’s, NL, Canada, paper: OMAE2015-42405
The time domain method is further extended here in order to calculate the hydroelastic response of an ultra large containership in regular waves. Based on strip theory, the hydrodynamic and the hydrostatic forces are calculated for the instantaneous wetted surface area. Slamming forces are calculated using a Von Karman approach in which the water pile up during slamming is neglected. Timoshenko beam which takes into account the shear deformation and rotary inertia is used to model the structural dynamic characteristics of the hull. The beam is discretized using the finite element method and the ship vibration is solved using the modal analysis. The method is used to calculate the vertical bending moment acting on an ultra large containership in large amplitude regular waves. The results are compared with the experimental results measured in wave tank.
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