Numerical and Experimental Study on Trimaran Cross-Deck Structure's Fatigue Characteristics Based on the Spectral Fatigue Method

被引：2
|
作者：
Zhen, Chunbo [1 ]
Feng, Guoqing [2 ]
Wang, Tianlin [1 ]
Yu, Pengyao [1 ]
机构：
[1] Dalian Maritime Univ, Coll Naval Architecture & Ocean Engn, Dalian 116026, Peoples R China
[2] Harbin Engn Univ, Coll Shipbldg Engn, Harbin 150001, Heilongjiang, Peoples R China
来源：
JOURNAL OF MARINE SCIENCE AND ENGINEERING | 2019年 / 7卷 / 03期
基金：
中国国家自然科学基金;
关键词：
trimaran; spectral fatigue method; full-scale test; fatigue damage; CAPACITY; DETAIL;
D O I：
10.3390/jmse7030062
中图分类号：
U6 [水路运输]; P75 [海洋工程];
学科分类号：
0814 ; 081505 ; 0824 ; 082401 ;
摘要：
Spectral fatigue analysis is performed on the trimaran cross-deck structural detail. A global finite element (FE) model with local fine meshes at hot spot locations is built for the calculation of structural response. Three-dimensional linear potential flow theory and global FE analysis are used for wave load and stress transfer function calculations. Then, the hot spots' fatigue damage is calculated, considering various factors influencing spectral analysis, which includes cycle counting correction factors, wave scatter diagram, and the distribution coefficient of wave headings. A full-scale model fatigue test is used to investigate the fatigue behavior of the cross-deck structural detail. Using the fatigue test data, the S-N curve characteristic of the cross-deck structural detail is produced. Finally, the trimaran cross-deck structural detail's fatigue characteristics are summarized and the effects of the factors influencing spectral fatigue analysis are reported.
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收藏
页数：18
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