Numerical study of uncoupled and coupled TLP models

• Autorzy: Wang Jianwei , Luo Yuankui , Guo Rui , Cai Wei , Zhao Jingyi , Luo Xiongshuai

Identyfikatory

DOI

10.2478/pomr-2021-0033

• Języki publikacji: EN

Abstrakty

EN

In this paper, two analysis models for tension leg platform (TLP) are proposed based on different simulation methods of the tendons for studying the TLP motion responses in waves. In the uncoupled analysis model, the tendon is simplified as a spring, and the restoring forces matrix is derived with the consideration of the influence of the coupled effect of horizontal offset and vertical setdown of the platform. In the coupled model, the axial and transverse vibration’s coupled effect has been considered for the establishment of the vibration equations for the tendons, and the finite difference method is used to solve the vibration equations. The time-domain coupled motion model of the platform and the mooring system is established based on the interaction forces between the tendons and the platform. The coupled and uncoupled TLP models are compared and analysed to determine their applicability. Compared with the uncoupled TLP model, the coupled TLP model has greater accuracy and a wider application range, and the effects of second-order wave force on the platform responses, horizontal offset, and vertical subsidence are analysed.

Słowa kluczowe

EN

coupled TLP model; uncoupled TLP model; hydynamics; second-order wave force; offset and setdown

• Wydawca: Gdańsk University of Technology, Faculty of Ocean Engineering & Ship Technology
• Czasopismo: Polish Maritime Research
• Rocznik: 2021
• Tom: nr 3
• Strony: 44--60
• Opis fizyczny: Bibliogr. 23 poz., rys., tab.

Twórcy

autor

Wang Jianwei

• Yanshan University Hebei Street, 066004 Qinhuangdao China

autor

Luo Yuankui

• Yanshan University Hebei Street, 066004 Qinhuangdao China

autor

Guo Rui

• Yanshan University Hebei Street, 066004 Qinhuangdao China

autor

Cai Wei

• Yanshan University Hebei Street, 066004 Qinhuangdao China

autor

Zhao Jingyi

• Yanshan University Hebei Street, 066004 Qinhuangdao China

autor

Luo Xiongshuai

• Yanshan University Hebei Street, 066004 Qinhuangdao China

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).