Iceberg Design Load Methodology

Paul Stuckey, F. Ralph, I. Jordaan
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引用次数: 1

Abstract

An iceberg design load methodology has been developed to address the risk of icebergs to offshore structures. The methodology is probabilistic, accounts for the range of iceberg shapes, sizes and strengths, and environmental conditions. The model is applicable to both fixed structures such as a gravity based structure or a jackup, as well as floating structures such as a semi-submersible or a FPSO. This paper will focus on recent improvements made to key models within the methodology. A probabilistic iceberg drift speed model has been developed, which takes into account the inherent randomness in the observed data. With an expanded set of iceberg profiles, covering a wider range of iceberg shapes and sizes, the area-penetration and iceberg eccentricity models have been enhanced. In addition a new contact depth model has been implemented.
冰山设计荷载方法学
一种冰山设计荷载方法已经被开发出来,以解决冰山对海上结构的风险。这种方法是概率的,考虑了冰山的形状、大小和强度以及环境条件。该模型既适用于固定结构,如重力结构或自升式平台,也适用于浮式结构,如半潜式或FPSO。本文将着重于方法论中关键模型的最新改进。建立了考虑观测数据随机性的冰山漂移速度概率模型。随着冰山剖面的扩展,涵盖了更大范围的冰山形状和大小,面积穿透和冰山偏心模型得到了增强。此外,还实现了一种新的接触深度模型。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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