AN EXPERIMENTAL STUDY ON MOTIONS AND MOORING FORCES OF A VESSEL INSIDE HARBOUR DUE TO TSUNAMI BORE

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  • 段波津波による港内係留船の船体運動に関する実験的考察

Abstract

<p> From the disaster survey of vessels moored along the terminals inside the harbor basins in the 2011 Tohoku Earthquake Tsunami, it is required how to express and estimate the motions and mooring loads of those vessels. An experimental study on the motions and mooring loads for a model ship which is modeled as a 90,000DWT class coal carrier has been conducted in two-dimensional water tank during a tsunami bore. The surface elevation, current, ship motions and mooring loads such as mooring line tesnions and fender reaction forces acting on the ship in stern waves have been measured in several established bores. The property of the tsunami bore, ship motions and mooring loads are investigated, and an effect of a reflected wave of bore inside harbor is remarkable for the property of ship motions and mooring loads.</p>

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