TY - CONF VL - 34 UR - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85047728459&doi=10.1051%2fe3sconf%2f20183402032&partnerID=40&md5=734403c19ab756e10eefe09c05895ce2 A1 - Guan, M. A1 - Osman, M. A1 - Ng, C.Y. SN - 22671242 PB - EDP Sciences Y1 - 2018/// KW - Environmental engineering; Floating production storage and offloading; Mooring; Numerical methods; Numerical models KW - Commercial software; Complete system; Coupled dynamic analysis; Equivalent-linear; Floating production storage offloading; Mooring line tensions; Quasi-static methods; Restoring forces KW - Mooring cables TI - Prediction of Deepwater FPSO responses using different numerical analysis methods ID - scholars10433 N1 - cited By 1; Conference of 1st International Conference on Civil and Environmental Engineering, CENVIRON 2017 ; Conference Date: 28 November 2017 Through 29 November 2017; Conference Code:135385 N2 - The limitations of existing wave basins present a significant challenge when modelling offshore deepwater systems, particularly due to the basin's relatively shallow depth. Numerical simulation thus becomes valuable in predicting its behaviour during operation at sea. The coupled dynamic analysis is preferred over the traditional quasi-static method, as the former enables the inclusion of damping and added mass properties of the complete mooring line system, which becomes increasingly prominent at greater water depths. This paper investigates the motions and mooring line tensions of a turret moored Floating Production Storage Offloading (FPSO) platform using three numerical models, i.e. a dynamic system, quasi-static system and linear spring system subjected to unidirectional random wave condition. Analysis is carried out using a commercial software AQWA. The first two numerical models utilise a complete system of the same setup and configuration, while the linear spring system substitutes the mooring lines with equivalent linear springs and attempts to match the total mooring line restoring forces with that of the coupled dynamic analysis. The study demonstrates the significance of coupled dynamic analysis on the responses of an FPSO in deepwater. The numerical model of the FPSO is validated against the results of a published work. © The Authors, published by EDP Sciences, 2018. AV - none ER -