文章基本信息

标题：船体応答に基づく推定波浪情報の時刻歴ベイズ更新に関する研究
本地全文：下载
作者：久保宏美 ; 岡田哲男 ; 陳曦等
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：2021
卷号：34
页码：73-85
DOI：10.2534/jjasnaoe.34.73
语种：Japanese
出版社：社団法人日本船舶海洋工学会
摘要：To ensure structural safety of large container ships, advanced application of monitoring data is pursued in the structural health monitoring project. In this study, we estimated statistical sea state that the ship actually encountered using Bayesian updating of the sea state data estimated from the measured hull stresses. To achieve reliable real-time short-term statistical estimation of the sea state, we introduced forgetting rate to the past data in the Bayesian model. In addition, abrupt change of the sea state due to the ship operation was detected by Bayesian analysis of the data to obtain probable time history of the sea state by Bayesian update. As a result, good tracking performance of the real time sea state was demonstrated.