Response-based extreme value analysis of moored offshore structures due to wave, wind, and current |
| |
Authors: | Atiela Incecik John Bowers Gill Mould Oguz Yilmaz |
| |
Institution: | (1) Department of Marine Technology, Armstrong Building, University of Newcastle, NE1 7RU Newcastle upon Tyne, UK;(2) University of Stirling, Stirling, UK;(3) University of Glasgow, Glasgow, UK |
| |
Abstract: | Floating moored offshore structures have a significant future in offshore operations as an attractive economic alternative
to fixed structures in deep waters and/or in areas where there is no existing infrastructure. This paper describes an analysis
procedure based on the structure variable approach to estimate load and response values of a moored offshore platform at a
given return period by taking into account the joint occurrence of wave, wind, and current. The results show that the most
severe mooring loads may not occur when wind, wave, and current are collinear and are at their maximum design values, i.e.,
the 50- or 100-year case. It is recommended that the extreme mooring design loads for moored offshore systems should be determined
through a range of physical or numerical simulations where wave, wind, and current are noncollinear and act with less severe
magnitudes than the 50- or 100-year case. This recommendation has also been adopted in the ITTC/Ocean Engineering Committee
recommendations to the ITTC Conference held in September 1996. |
| |
Keywords: | floating offshore platforms response-based design multivariate extreme value analysis |
本文献已被 SpringerLink 等数据库收录! |
|