深水半潜式海洋平台极限波浪环境载荷计算

摘要

深水半潜式海洋平台的环境载荷包括波浪载荷，风载荷，流载荷共三种环境载荷。其中，半潜式平台所受到的环境载荷以波浪载荷为主。半潜式平台在极限波浪环境中作业最危险。为了计算平台的极限波浪载荷的波浪参数，应用水动力学有限元分析软件 AQWA，以作业于2000m 水深的深水半潜式海洋平台为原型建立模型，进行了针对该半潜式平台的极限波浪环境载荷计算工作。根据随机性设计波法计算搜索得到四种极限工况下的波浪环境载荷参数。计算结果可为作业于相同或类似海域内的深水半潜式海洋平台的极限波浪环境载荷的计算提供参考。%Three kind of loads on a deep sea semi-submersible platform include wave loads, wind loads, and current loads. The most important part among them was the wave environmental loads. The most dangerous loads for a semi-submersible platform are the extreme wave environmental loads. In order to calculate the extreme wave environmental loads parameters for a semi-submersible platform, in this paper, using hydrodynamic finite element simulation software AQWA, building up a model based on a semi-submersible platform working in 2000 m depth sea, calculated the parameters for the extreme wave environmental loads for the platform.According to the stochastic method, we found the parameters for four extreme conditions. The results provide reference to the design work for same type of platform working on the similar sea area.