点击次数：

论文类型： 期刊论文

发表时间： 2013-09-15

发表刊物： OCEAN ENGINEERING

收录刊物： SCIE、EI

卷号： 70

页面范围： 118-123

ISSN号： 0029-8018

关键字： Ice-induced vibration acceleration; Jacket platform; Non-structure failure; Isolation cone system; Numerical simulation

摘要： The jacket platforms are strong enough to resist extreme ice forces in Bohai Sea, China. However, ice-induced vibration acceleration has been observed and caused non-structure failure such as human discomfort and gas leakage due to flange loosing of pipes in winters. As a method of reducing ice-induced vibrations, this paper proposed an isolation cone system composed of cones, springs and dampers, which is located on the pile of jacket platforms at sea level. In order to examine the ice-induced vibration acceleration reduction effectiveness of the isolation cone system for jacket platforms, a numerical simulation is conducted to JZ20-2MUQ jacket platform as an example. It is shown from the numerical study and observed data that the isolation cone system is effective in reducing the ice-induced vibration acceleration responses and avoiding non-structure failure of jacket platform structures. Crown Copyright (C) 2013 Published by Elsevier Ltd. All rights reserved.