文章基本信息

标题：大型コンテナ船に生じる弾性振動応答を考慮した疲労強度の簡易推定手法
本地全文：下载
作者：宮下哲治 ; 岡田哲男 ; 川村恭己等
期刊名称：日本船舶海洋工学会論文集
印刷版ISSN：1880-3717
电子版ISSN：1881-1760
出版年度：2020
卷号：31
页码：123-134
DOI：10.2534/jjasnaoe.31.123
出版社：社団法人日本船舶海洋工学会
摘要：The recent increase in the size of container ships has resulted in lower natural frequency of the hull girder vertical bending and torsional vibrations; this has caused great concern regarding excessive whipping in these responses to incident waves. To accurately account for whipping in ship design, it is important to understand the relationship between the whipping response and sea states in which the ship operates. However, this specific topic has been reported little to date. In this study, we quantitatively analyze the influence of various sea states and navigational conditions on the whipping response in hull girder bending vibration and torsional vibration based on full-scale measurement. Moreover, a simple estimation method is proposed for fatigue damage using the relationship between whipping and sea states/navigational conditions. By providing quantitative analysis of the relationship between whipping and sea states/navigational conditions, our study will contribute to future ship design to ensure better operation safety and longer hull life.