Effect of bathymetry irregularities on the energy dissipation of a mooring line

With the aim of analysing the dynamic performance of a conventional chain catenary line and the impact that bathymetry irregularities may have on mooring dynamics, its fairlead is forced to oscillate under different accelerations in both regular and irregular displacements in surge direction. The ex...

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Authors: Somoano Rodríguez, Miguel, Rodríguez Luis, Alvaro, Blanco Iturbe, David, Guanche García, Raúl
Format: article
Publication Date:2024
Country:España
Institution:Universidad de Cantabria (UC)
Repository:UCrea Repositorio Abierto de la Universidad de Cantabria
Language:English
OAI Identifier:oai:repositorio.unican.es:10902/32628
Online Access:https://hdl.handle.net/10902/32628
Access Level:Open access
Keyword:Mooring system
Catenary mooring line
Seabed interaction
Irregular bathymetry
Energy dissipation
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spelling Effect of bathymetry irregularities on the energy dissipation of a mooring lineSomoano Rodríguez, MiguelRodríguez Luis, AlvaroBlanco Iturbe, DavidGuanche García, RaúlMooring systemCatenary mooring lineSeabed interactionIrregular bathymetryEnergy dissipationWith the aim of analysing the dynamic performance of a conventional chain catenary line and the impact that bathymetry irregularities may have on mooring dynamics, its fairlead is forced to oscillate under different accelerations in both regular and irregular displacements in surge direction. The experimental setup is specifically designed to realistically assess the energy dissipation through the mooring line. The importance of the interaction with the seabed is evident from the resulting video images and the tensions at both ends of the line. The differences between fairlead tensions of different seabed configurations increase under snap loading, peak tensions reaching values in some dynamic cases almost 0.5 times lower with a steep slope than with no slope. This supports the need to consider the bathymetry when designing a mooring system. Moreover, the period for which the dissipated energy abruptly increases due to snap loading is longer as the offset and amplitude enlarge, demonstrating the effect of mean drift on the all chain mooring line. How platform drift increases the dissipated energy through the mooring system depends largely on the local bathymetry, with this increase in some cases being 5.55 times greater with a steep slope than with no slope.Elsevier BVUniversidad de Cantabria20242024-02-01journal articlehttp://purl.org/coar/resource_type/c_6501NAhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43info:eu-repo/semantics/articlehttps://hdl.handle.net/10902/32628Ocean Engineering, 2024, 296, 116932reponame:UCrea Repositorio Abierto de la Universidad de Cantabriainstname:Universidad de Cantabria (UC)InglésengEuropean Commission http://dx.doi.org/10.13039/501100000780 Horizon 2020 Framework Programme 815083open accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:repositorio.unican.es:10902/326282026-06-02T12:39:31Z
dc.title.none.fl_str_mv Effect of bathymetry irregularities on the energy dissipation of a mooring line
title Effect of bathymetry irregularities on the energy dissipation of a mooring line
spellingShingle Effect of bathymetry irregularities on the energy dissipation of a mooring line
Somoano Rodríguez, Miguel
Mooring system
Catenary mooring line
Seabed interaction
Irregular bathymetry
Energy dissipation
title_short Effect of bathymetry irregularities on the energy dissipation of a mooring line
title_full Effect of bathymetry irregularities on the energy dissipation of a mooring line
title_fullStr Effect of bathymetry irregularities on the energy dissipation of a mooring line
title_full_unstemmed Effect of bathymetry irregularities on the energy dissipation of a mooring line
title_sort Effect of bathymetry irregularities on the energy dissipation of a mooring line
dc.creator.none.fl_str_mv Somoano Rodríguez, Miguel
Rodríguez Luis, Alvaro
Blanco Iturbe, David
Guanche García, Raúl
author Somoano Rodríguez, Miguel
author_facet Somoano Rodríguez, Miguel
Rodríguez Luis, Alvaro
Blanco Iturbe, David
Guanche García, Raúl
author_role author
author2 Rodríguez Luis, Alvaro
Blanco Iturbe, David
Guanche García, Raúl
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidad de Cantabria
dc.subject.none.fl_str_mv Mooring system
Catenary mooring line
Seabed interaction
Irregular bathymetry
Energy dissipation
topic Mooring system
Catenary mooring line
Seabed interaction
Irregular bathymetry
Energy dissipation
description With the aim of analysing the dynamic performance of a conventional chain catenary line and the impact that bathymetry irregularities may have on mooring dynamics, its fairlead is forced to oscillate under different accelerations in both regular and irregular displacements in surge direction. The experimental setup is specifically designed to realistically assess the energy dissipation through the mooring line. The importance of the interaction with the seabed is evident from the resulting video images and the tensions at both ends of the line. The differences between fairlead tensions of different seabed configurations increase under snap loading, peak tensions reaching values in some dynamic cases almost 0.5 times lower with a steep slope than with no slope. This supports the need to consider the bathymetry when designing a mooring system. Moreover, the period for which the dissipated energy abruptly increases due to snap loading is longer as the offset and amplitude enlarge, demonstrating the effect of mean drift on the all chain mooring line. How platform drift increases the dissipated energy through the mooring system depends largely on the local bathymetry, with this increase in some cases being 5.55 times greater with a steep slope than with no slope.
publishDate 2024
dc.date.none.fl_str_mv 2024
2024-02-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
NA
http://purl.org/coar/version/c_be7fb7dd8ff6fe43
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/10902/32628
url https://hdl.handle.net/10902/32628
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv European Commission http://dx.doi.org/10.13039/501100000780 Horizon 2020 Framework Programme 815083
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier BV
publisher.none.fl_str_mv Elsevier BV
dc.source.none.fl_str_mv Ocean Engineering, 2024, 296, 116932
reponame:UCrea Repositorio Abierto de la Universidad de Cantabria
instname:Universidad de Cantabria (UC)
instname_str Universidad de Cantabria (UC)
reponame_str UCrea Repositorio Abierto de la Universidad de Cantabria
collection UCrea Repositorio Abierto de la Universidad de Cantabria
repository.name.fl_str_mv
repository.mail.fl_str_mv
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