<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>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.</p>
</abstract>

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.

Numerical Study of Uncoupled and Coupled TLP Models

Polish Maritime Research

This work is licensed under the Creative Commons Attribution 4.0 International License.

{"article-title":"Numerical Study of Uncoupled and Coupled TLP Models"}

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...

Numerical Study of Uncoupled and Coupled TLP Models

Publié en ligne: 22 oct. 2021

Pages: 44 - 60

DOI: https://doi.org/10.2478/pomr-2021-0033

Mots clés
Coupled TLP model, Uncoupled TLP model, Hydynamics, Second-order wave force, Offset and setdown

© 2021 Jianwei Wang et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Numerical Study of Uncoupled and Coupled TLP Models

Publié en ligne: 22 oct. 2021

Pages: 44 - 60

DOI: https://doi.org/10.2478/pomr-2021-0033

Mots clésCoupled TLP model, Uncoupled TLP model, Hydynamics, Second-order wave force, Offset and setdown

© 2021 Jianwei Wang et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Mots clés
Coupled TLP model, Uncoupled TLP model, Hydynamics, Second-order wave force, Offset and setdown