Abstract

In the first report, the basic concept of a longlife-oriented new type floating offshore airport was proposed and its fundamental response characteristics such as static stability, response due to an impact load were investigated. This second report deals with the deflections and bending moments among waves with special considerations of its deck stiffness and effects of loss one unit due to replacing.The response to regular head waves are studied numerically and verified by experiments. The hydrodynamic forces induced by wave are calculated by using 3D singularity distribution method taking the symmetry of structure into accounts. On the other hand, the structural analysis is conducted by using the application of FEM approach. Then, the hydroelastic responses, namely deflection and bending moment in waves are determined by combining the above two analyses.The influence of deck stiffness on deflection and moment are discussed through a series calculations. Also the loss of unit in replacing condition is investigated, and some suggestions for such type floating airport are proposed consequently.

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