文章基本信息

标题：構造信頼性理論による非線形応答のための設計不規則波列の導出
本地全文：下载
作者：飯島一博 ; 藤久保昌彦 ; 堀田裕樹等
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：2014
卷号：19
页码：101-110
DOI：10.2534/jjasnaoe.19.101
语种：Japanese
出版社：社団法人日本船舶海洋工学会
摘要：The primary objective of the present paper is to obtain an irregular wave train inducing the most likely nonlinear response at an arbitrary probability level in a short term sea state. The target response includes nonlinear combined load, e.g., von Mises stress, and cumulative elasto-plastic behavior of hull girder after the ultimate strength. To this end, FORM (First Order Reliability Method) is adopted following the works by Jensen, JJ. Then, the irregular wave train could be obtained as design points on limit state function by FORM. Once such an irregular wave train is obtained, the most likely response could be estimated easily either by simulation or experiment under the specified wave train. It is shown that such an irregular wave train could be specified for nonlinear response such as the combined load and the cumulative collapse behavior. It is observed that the irregular wave train which induces the most likely collapse behavior is characterized by one extreme peak.