Quasi-dynamic mooring line model
Visualitza/Obre
10.1016/j.oceaneng.2021.110133
Inclou dades d'ús des de 2022
Cita com:
hdl:2117/362588
Tipus de documentArticle
Data publicació2022-01-01
Condicions d'accésAccés obert
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continguts d'aquesta obra estan subjectes a la llicència de Creative Commons
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Reconeixement-NoComercial-SenseObraDerivada 3.0 Espanya
Abstract
The quasi-dynamic mooring line model is a new approach to assess the mooring line tension that considers the static solution of the catenary shape, but updates the distributed vertical force along the mooring line as a function of the external forces, drag and inertial, acting on the line. In this way, an updated apparent weight is applied to the static solution of the catenary shape that improves significantly the solution obtained by the quasi-static approach, with an equivalent computational cost. Then, the model improves the tension solution of the quasi-static models by using that updated weight of the mooring, achieving results much closer to the dynamic models than the standard quasi-static ones. To appraise the improvement of the results, a parametric analysis within a wide range of mooring physical parameters is conducted. The error of the quasi-static tension of one cycle is less than 20% only for the 18% of the simulations, while the quasi-dynamic model produces an error less than 20% for the 84% of simulations. In addition, the model can predict the slack phenomenon.
CitacióTrubat, P.; Molins, C.; Gironella, X. Quasi-dynamic mooring line model. "Ocean engineering", 1 Gener 2022, vol. 243, p. 110133:1-110133:17.
ISSN0029-8018
Versió de l'editorhttps://www.sciencedirect.com/science/article/pii/S0029801821014542#!
Col·leccions
Fitxers | Descripció | Mida | Format | Visualitza |
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QUASIDYNAMICMOORINGLINEMODEL_PrePrint.pdf | 2,409Mb | Visualitza/Obre |