波浪中の船体に働く縦軸方向荷重の設計値推定

概要

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The authors present the method of estimating axial force induced on a ship hull in regular waves. And, the statistical predictions of wave axial force are made for a gigantic oil tanker of 310 meters length and the similar ships of different length, in order to find out the long-term trends of wave axial force. Firstly, the response functions of wave axial force are calculated by the aid of the presented method. Then, the standard deviations of wave axial force are evaluated based upon the linear superposition theory, by using the calculated response functions and the formulated wave spectra for different sea conditions. Finally, the long-term predictions of wave axial force are determined by the obtained standard deviations and the wave statistics of the North Atlantic Ocean. According to the systematic prediction works, the longitudinal distributions of wave axial force predicted with the exceeding probability of 10^<-8> are investigated in relation to the ship speed, heading angle and ship length.
社団法人日本船舶海洋工学会の論文
1977-08-15