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On the application of the Haskind-Hanaoka relations to hydroelasticity problems |
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| Authors: | R C Ertekin S Q Wang X L Che H R Riggs |
| Institution: | a Department of Ocean Engineering, University of Hawaii at Manoa, Honolulu, HI 96822, USA b Department of Civil Engineering, University of Hawaii at Manoa, Honolulu, HI 96822, USA |
| Abstract: | The Haskind-Hanaoka relations for obtaining the wave-exciting forces, given the incoming and radiation potentials in floating rigid-body dynamics, are extended to deformable-body dynamics in the presence of a free surface and within the assumption of linear potentials theory. These relations are applied to the mode-superposition and the direct methods of solution of hydroelasticity problems. In other words, it is shown that regardless of the structural analysis method used in a hydroelasticity problem, the Haskind-Hanaoka relations can be used to calculate the wave-exciting forces without solving for the diffraction potential explicitly. These relations can also be used in the composite singularity distribution method to increase further the computational efficiency. |
| Keywords: | Haskind-Hanaoka relations hydroelasticity mode-superposition composite singularity distribution finite element analysis wave-exciting forces and moments |
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