Estimation of External Force by means of Mathematically Expressed Hull Forms : Part 2, Wave Bending Moment and Shearing Force

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  • KATOH Akira
    (株)名村造船所船舶海洋事業部設計部
  • LI Qi
    華中理工大学交通学院
  • IKEDA Ryo
    (株)名村造船所船舶海洋事業部設計部

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Other Title
  • 数式表示船型を用いた外力の推定法 : その2 波浪中における曲げモーメント,剪断力
  • 数式表示船型を用いた外力の推定法(2)波浪中における曲げモーメント、剪断力
  • スウシキ ヒョウジ センケイ オ モチイタ ガイリョク ノ スイテイホウ 2 ハロウ チュウ ニ オケル マゲ モーメント 、 センダンリョク

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Abstract

In very first stages of hull structural design and planning, only limited ship characteristic information, such as C_b, l_<cb> and principal dimensions is available. Even in that stage of hull design, the external force and moment, in still water and in waves are significant keys to evaluation of structural strength and hull weight estimation. We have proposed to apply the mathematically expressed hull form to evaluation of sea load, such as bending moment, force and pressure against hull structure. The present studies concentrate to obtain the fundamental characteristics of ship in waves by mathematically formulated hull. The comparisons of the results by mathematically formulated hull have shown very good agreement with those by actual hull form and obtained the applicability of this method for evaluation of wave load in the very first stage of hull design.

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