Abstract
We evaluated the safety of two moored ships in the port of Shimizu against the Tokai earthquake tsunami based on the numerical simulations. We first carried out the tsunami simulation and obtained the tsunami wave profiles at two berths in the target port. And then we performed the ship motion simulations by using the tsunami waves as the external forces. The main results are: 1) The surging is the significant motion of the moored ship against the tsunami, 2) The tensions of the spring and breast lines are larger than those of the head and stern lines, 3) The larger moored ship moves widely and influences the mooring system, and 4) The moored ships and mooring systems are safe against the tsunami.
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