Reliability and redundancy assessment of ships under different operational conditions

被引：26

作者：

Deco, Alberto ^{[1
]}

Frangopol, Dan M. ^{[1
]}

Zhu, Benjin ^{[1
]}

机构：

[1] Lehigh Univ, Dept Civil & Environm Engn, Engn Res Ctr Adv Technol Large Struct Syst, ATLSS Ctr, Bethlehem, PA 18015 USA

来源：

ENGINEERING STRUCTURES | 2012年 / 42卷

关键词：

Performance indicators; Reliability; Redundancy; Ships; Hull strength; Operational conditions; Polar representation; Time-variant; CORROSION; FATIGUE; DESIGN; DAMAGE;

D O I：

10.1016/j.engstruct.2012.04.017

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper proposes a framework for the assessment of structural safety of ships under different operational conditions by evaluating performance indicators such as reliability and redundancy. Flexural failure mode for several ship cross-sections is investigated. Reliability and redundancy are based upon the evaluation of the flexural capacities associated with the ultimate hull failure and the failure of the first stiffened panel within a selected cross-section. Furthermore, aging effects due to corrosion phenomena are investigated. Polar representations of reliability and redundancy are obtained for different encountered sea states, ship speeds and headings, covering a large spectrum of operational conditions. Load effects due to waves are computed based on strip theory, while flexural capacity is simulated using Latin Hypercube sampling. The proposed approach is applied to a Joint High Speed Sealift. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：457 / 471

页数：15