Session: 02-05-02 Extreme Loads and Responses 2

Paper Number: 127037

127037 - Extreme Value Prediction for the Dynamical Responses of a Semi-Submersible Platform in Harsh Enviroment 

Deep-sea platforms play a crucial role in the exploration of oil and gas resources. Ensuring the safety of semi-submersible platforms in the face of challenging marine environments is of paramount importance. Consequently, this research is dedicated to the estimation of extreme values for motion responses and the mooring loads of a deep-water semisubmersible platform in the South China Sea. Specifically, numerical simulations are carried out by using commercial software, and the accuracy of the numerical results is verified with experimental data. In order to assess the safety of mooring systems with multi-point configurations under extreme sea conditions, the environmental contour method (ECM) is applied to select the most severe sea state. For the given sea state, short-term extreme value analysis is performed by using the Average Conditional Exceedance Rate (ACER)method. Finally, an analysis of the extreme value predictions is performed in compliance with relevant regulations to evaluate the safety of the mooring system. x x x x  x x  x x  x x  x x  x x  x x  x x  x x  x x x x x x x x x x x x x x x x x x x x (will be extended in the final version)

Presenting Author: Lin He Wuhan University of Technlogy

Presenting Author Biography: Ms. Lin He is now a PhD candidate at Wuhan University of Technology. Her main research field is structural reliability of Marine Structures.

Authors:

Lin He Wuhan University of Technlogy
Wei Chai Wuhan University of Technology
Jian Gu China Ship Scientific Research Center
Chana Sinsabvarodom Chiang Mai University
Junfeng Chen Dalian University of Technology
Wei Shi Dalian University of Technology