Intact stability analysis of a semi-submersible platform for floating offshore wind turbines

被引：0
|
作者：
Deng L. [1 ]
Xiao Z. [1 ]
Wang B. [1 ]
Song X. [2 ]
Wu H. [2 ]
机构：
[1] College of Civil Engineering, Hunan University, Changsha
[2] XEMC Windpower Co., Ltd, Xiangtan
来源：
Harbin Gongcheng Daxue Xuebao | / 10卷 / 1359-1365期
关键词：
Floating offshore wind turbines; Initial metacentric height; Intact stability; Semi-submersible platform;
D O I：
10.11990/jheu.201507029
中图分类号：
学科分类号：
摘要：
In order to investigate the limit of the initial metacentric height (GM) and factors influencing the intact stability of a semi-submersible platform for floating wind turbines, research on the stability of the semi-submersible platform is performed by theoretical analysis and numerical simulation. A design formula for setting the limit of GM of a semi-submersible platform for floating wind turbines is proposed according to steady-state heel angles and rolling periods based on stability theory in marine engineering. Then, the most critical heeling axle of the floater is analyzed by theory. Finally, a numerical simulation for a 5WM floating wind turbine is performed using Sesam software to investigate how three main factors, including the distance between pontoons, the radius of pontoons and the height of freeboard, influence the stability of platforms. The results indicate that these factors affect stability in different ways, corresponding with various effects on GM, center of gravity and displacement. These results can be used as reference for the design of semi-submersible platforms for floating wind turbines. © 2016, Editorial Department of Journal of HEU. All right reserved.
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页码：1359 / 1365
页数：6
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