Extreme Response Predictions for Jack-Up Units in Second Order Stochastic Waves by FORM
Extreme Response Predictions for Jack-Up Units in Second Order Stochastic Waves by FORM
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DOI：
10.1115/omae2007-29022
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发表时间：
2006-10
期刊：
影响因子：
--
通讯作者：
J. Jensen
中科院分区：
文献类型：
--
作者：
J. Jensen
本文的目的是提倡一种基于一阶可靠度方法（FORM）的非常有效的随机程序，用于与波浪诱导载荷相关的极值预测。由于该程序利用了所讨论的响应的短时域模拟，因此可以包括各种非线性。该过程将以自升式钻井平台为例进行说明，其中二阶随机波包括在分析中。结果是倾覆概率作为海况和操作时间的函数。ASME版权所有©2007
The aim of the present paper is to advocate for a very effective stochastic procedure, based on the First Order Reliability Method (FORM), for extreme value predictions related to wave induced loads. All kinds of non-linearities can be included, as the procedure makes use of short time-domain simulations of the response in question. The procedure will be illustrated with a jack-up rig where second order stochastic waves are included in the analysis. The result is the probability of overturning as function of sea state and operational time.Copyright © 2007 by ASME