Collision Force Between Moored Tanker and Offshore Platform

TANG Yougang; TAO Haicheng; WANG Rong; CAO Han

doi:10.3969/j.issn.1673-3185.2012.04.007

Volume 7 Issue 4

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TANG Yougang, TAO Haicheng, WANG Rong, CAO Han. Collision Force Between Moored Tanker and Offshore Platform[J]. Chinese Journal of Ship Research, 2012, 7(4): 36-40. doi: 10.3969/j.issn.1673-3185.2012.04.007

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Collision Force Between Moored Tanker and Offshore Platform

doi: 10.3969/j.issn.1673-3185.2012.04.007

State Key Laboratory of Hydraulic Engineering Simulation and Safety,Tianjin University,Tianjin 300072,China

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Corresponding author: TANG Yougang
Received Date: 2012-03-20
Accepted Date: 2012-08-20
Rev Recd Date: 2012-05-07
Publish Date: 2012-08-25

Abstract

This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Collision force and its distribution which acted on the rubber fender of a ship moored to a platform were researched by considering the influence of wind，wave，flow and nonlinear stiffness of the platform fender. According to different angles of wind，wave and flow as well as different wind speed，wave height and flow velocity，the loads of wave and ocean current for mooring system were calculated. And also the analysis model for moored ship was established. Moreover the collision force between the moored ship and a platform were simulated through the method of time domain and frequency domain，and obtained the time history of collision force. Besides，the probability of occurrence of different collision force was analyzed in order to determine the direction of wind，wave and flow which maximum collision force occurred. The results show that the rubber fender stiffness has significant effect on the calculation of collision force， it is essential to choice non-linear fender stiffness when calculating the collision force on the platform. And there are relatively larger deviations by using empirical formula to calculate collision force.
- moored ship,
- offshore platform,
- rubber fender,
- nonlinear stiffness,
- collision force

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References(10)

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