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Experimental Study on the Effect of Extreme Waves on a LNG Carrier

Klein, Marco and Wang, Shan and Clauss, Günther and Guedes Soares, Carlos (2023) Experimental Study on the Effect of Extreme Waves on a LNG Carrier. Journal of Marine Science and Application (22), pp. 52-74. Harbin Engineering University. doi: 10.1007/s11804-023-00321-1. ISSN 1671-9433.

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Official URL: https://link.springer.com/article/10.1007/s11804-023-00321-1

Abstract

This paper presents a comprehensive experimental study on the effect of extreme waves on a LNG carrier. The LNG carrier model was equipped with a variety of sensors to measure motions, green water height on deck as well as local and global loads. Experiments in transient wave packets provided the general performance in waves in terms of response amplitude operators and were accompanied by tests in regular waves with two different wave steepness. These tests allowed detailed insights into the nonlinear behavior of the vertical wave bending moment in steep waves showing that green water on deck can contribute to a decrease of vertical wave bending moment. Afterwards, systematic model tests in irregular waves were performed to provide the basis for statistical analysis. It is shown that the generalized extreme value distribution model is suitable for the estimation of the extreme peak values of motions and loads. Finally, model tests in tailored extreme wave sequences were conducted comparing the results with the statistical analysis. For this purpose, analytical breather solutions of the nonlinear Schrödinger equation were applied to generate tailored extreme waves of certain critical wave lengths in terms of ship response. Besides these design extreme waves, the LGN carrier was also investigated in the model scale reproduction of the real-world Draupner wave. By comparing the motions, vertical wave bending moment, green water column and slamming pressures it is concluded that the breather solutions are a powerful and efficient tool for the generation of design extreme waves of certain critical wave lengths for wave/structure investigations on different subjects.

Item URL in elib:https://elib.dlr.de/195248/
Document Type:Article
Title:Experimental Study on the Effect of Extreme Waves on a LNG Carrier
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Klein, MarcoUNSPECIFIEDhttps://orcid.org/0000-0003-2867-7534136020687
Wang, ShanCentre for Marine Technology and Ocean Engineering (CENTEC), Instituto Superior Técnico, Universidade de LisboaUNSPECIFIEDUNSPECIFIED
Clauss, GüntherOcean Engineering Division, Technische Universität BerlinUNSPECIFIEDUNSPECIFIED
Guedes Soares, CarlosCentre for Marine Technology and Ocean Engineering (CENTEC), Instituto Superior Técnico, Universidade de LisboaUNSPECIFIEDUNSPECIFIED
Date:15 April 2023
Journal or Publication Title:Journal of Marine Science and Application
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI:10.1007/s11804-023-00321-1
Page Range:pp. 52-74
Publisher:Harbin Engineering University
ISSN:1671-9433
Status:Published
Keywords:Extreme wave events; Wave-structure interaction; Draupner wave; Breather solutions
HGF - Research field:Energy
HGF - Program:Energy System Design
HGF - Program Themes:Energy System Transformation
DLR - Research area:Energy
DLR - Program:E SY - Energy System Technology and Analysis
DLR - Research theme (Project):E - Systems Analysis and Technology Assessment
Location: Geesthacht
Institutes and Institutions:Institute of Maritime Energy Systems
Deposited By: Klein, Marco
Deposited On:31 May 2023 08:30
Last Modified:31 May 2023 08:30

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