Fatigue reliability of mooring chains, including mean load and corrosion effects

被引：10
|
作者：
Lone, Erling N. [1 ]
Sauder, Thomas [1 ,2 ]
Larsen, Kjell [1 ,3 ]
Leira, Bernt J. [1 ]
机构：
[1] Norwegian Univ Sci & Technol, Dept Marine Technol, N-7491 Trondheim, Norway
[2] SINTEF Ocean, POB 4762 Torgarden, N-7465 Trondheim, Norway
[3] Equinor ASA, Arkitekt Ebbells veg 10, N-7053 Ranheim, Norway
来源：
OCEAN ENGINEERING | 2022年 / 266卷
关键词：
Studless chain; S-N approach; Sensitivity analysis; Reliability analysis; Mean load; Corrosion; SENSITIVITY-ANALYSIS;
D O I：
10.1016/j.oceaneng.2022.112621
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：
A reliability formulation for mooring chain fatigue is developed, including the effects of mean load and degradation due to corrosion. They are included by starting from a S-N model with parameterized dependence to the mean load and a customized corrosion condition scale. The paper includes a thorough case study, based on a realistic case. A global sensitivity analysis is used to justify a reduction of the model dimension. A reliability analysis is then performed, and the effect on failure probability from variation of a range of parameters and model assumptions is studied.
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收藏
页数：15
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