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Numerical calculation of two-dimensional subsea cable tension problem using minimization approach

Jasman, Nur Azira and Normisyidi, Nur Adlin Lina and Hoe, Yeak Sue and Zainal Abidin, Ahmad Razin and Mohd. Haniffah, Mohd. Ridza (2019) Numerical calculation of two-dimensional subsea cable tension problem using minimization approach. Matematika, 35 (SI). pp. 15-32. ISSN 0127-8274

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Official URL: http://dx.doi.org/10.11113/matematika.v35.n4.1261

Abstract

Subsea cable laying is a risky and challenging operation faced by engineers, due to many uncertainties arise during the operation. In order to ensure that subsea cables are laid out diligently, the analysis of subsea cable tension during the laying operation is crucial. This study focuses on the fatigue failure of cables that will cause large hang-off loads based on catenary configuration after laying operation. The presented problem was addressed using mathematical modelling with consideration for a number of defining parameters, which include external forces such as current velocity and design parameters such as cable diameter. There were two types of subsea cable tension analyses studied: tensional analysis of catenary configurations and tensional analysis of lazy wave configurations. The latter involved a buoyancy module that was incorporated in the current catenary configuration that reduced subsea cable tension and enhanced subsea cable lifespan. Both analyses were solved using minimization through the gradient-based approach concerning on the tensional analysis of the subsea cable in different configurations. Lazy wave configurations were shown to successfully reduce cable tension, especially at the hang-off section.

Item Type:Article
Uncontrolled Keywords:buoyancy module, subsea cable
Subjects:Q Science > QA Mathematics
Divisions:Science
ID Code:89454
Deposited By: Widya Wahid
Deposited On:22 Feb 2021 09:47
Last Modified:22 Feb 2021 09:47

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