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Evaluation of the dynamic responses of truss spar platforms for different mooring materials in intact and damaged line conditions

Considering the cost impact of mooring lines, it is essential to find the best possible line material and configuration for a given platform and metocean data, which can reduce responses to an acceptable level. Floating platforms installed in deepwaters experience severe environment and therefore, i...

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Main Authors: Ahmed, M.O., Yenduri, A., John, K.V.
Format: Conference or Workshop Item
Published: International Society of Offshore and Polar Engineers 2019
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85078863283&partnerID=40&md5=a0cd341d42c40205a92fc457a7a462ae
http://eprints.utp.edu.my/23508/
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spelling my.utp.eprints.235082021-08-19T07:45:48Z Evaluation of the dynamic responses of truss spar platforms for different mooring materials in intact and damaged line conditions Ahmed, M.O. Yenduri, A. John, K.V. Considering the cost impact of mooring lines, it is essential to find the best possible line material and configuration for a given platform and metocean data, which can reduce responses to an acceptable level. Floating platforms installed in deepwaters experience severe environment and therefore, it is crucial they survive extreme events; primarily, when a mooring line is damaged. This paper addresses the performance evaluation of four mooring line materials in terms of dynamic responses of truss spar platforms for intact and damaged line conditions. Platform is modelled as a rigid body with three degrees-of-freedom and the dynamic response analysis is performed in time-domain. Mooring lines are modelled as massless springs and the stiffness is computed using quasi-static approach. It is observed that motions of platform about its mean position are nearly same for all mooring materials. Polyester mooring lines exhibited better performance in terms of restoring forces and mean position of platform for intact and damaged line conditions. In case of mooring line failure, the effect on mooring restoring performance and mean position of platform for different mooring materials is highest with polyester lines and least with steel wire lines. © 2019 by the International Society of Offshore and Polar Engineers (ISOPE). International Society of Offshore and Polar Engineers 2019 Conference or Workshop Item NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85078863283&partnerID=40&md5=a0cd341d42c40205a92fc457a7a462ae Ahmed, M.O. and Yenduri, A. and John, K.V. (2019) Evaluation of the dynamic responses of truss spar platforms for different mooring materials in intact and damaged line conditions. In: UNSPECIFIED. http://eprints.utp.edu.my/23508/
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Institutional Repository
url_provider http://eprints.utp.edu.my/
description Considering the cost impact of mooring lines, it is essential to find the best possible line material and configuration for a given platform and metocean data, which can reduce responses to an acceptable level. Floating platforms installed in deepwaters experience severe environment and therefore, it is crucial they survive extreme events; primarily, when a mooring line is damaged. This paper addresses the performance evaluation of four mooring line materials in terms of dynamic responses of truss spar platforms for intact and damaged line conditions. Platform is modelled as a rigid body with three degrees-of-freedom and the dynamic response analysis is performed in time-domain. Mooring lines are modelled as massless springs and the stiffness is computed using quasi-static approach. It is observed that motions of platform about its mean position are nearly same for all mooring materials. Polyester mooring lines exhibited better performance in terms of restoring forces and mean position of platform for intact and damaged line conditions. In case of mooring line failure, the effect on mooring restoring performance and mean position of platform for different mooring materials is highest with polyester lines and least with steel wire lines. © 2019 by the International Society of Offshore and Polar Engineers (ISOPE).
format Conference or Workshop Item
author Ahmed, M.O.
Yenduri, A.
John, K.V.
spellingShingle Ahmed, M.O.
Yenduri, A.
John, K.V.
Evaluation of the dynamic responses of truss spar platforms for different mooring materials in intact and damaged line conditions
author_facet Ahmed, M.O.
Yenduri, A.
John, K.V.
author_sort Ahmed, M.O.
title Evaluation of the dynamic responses of truss spar platforms for different mooring materials in intact and damaged line conditions
title_short Evaluation of the dynamic responses of truss spar platforms for different mooring materials in intact and damaged line conditions
title_full Evaluation of the dynamic responses of truss spar platforms for different mooring materials in intact and damaged line conditions
title_fullStr Evaluation of the dynamic responses of truss spar platforms for different mooring materials in intact and damaged line conditions
title_full_unstemmed Evaluation of the dynamic responses of truss spar platforms for different mooring materials in intact and damaged line conditions
title_sort evaluation of the dynamic responses of truss spar platforms for different mooring materials in intact and damaged line conditions
publisher International Society of Offshore and Polar Engineers
publishDate 2019
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85078863283&partnerID=40&md5=a0cd341d42c40205a92fc457a7a462ae
http://eprints.utp.edu.my/23508/
_version_ 1738656482047557632
score 13.211869

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