半潜平台总体强度计算中的波浪工况研究  

Study on Wave Working Condition in Overall Strength Calculation of Semi-submersible Platform

作　　者：严文军[1] 刘俊[1] 

机构地区：[1]上海交通大学海洋工程国家重点实验室,上海200240

出　　处：《船舶工程》2014年第4期108-111,共4页Ship Engineering

基　　金：海洋工程国家重点实验室自主研究课题(GKZD010061)

摘　　要：半潜平台总体强度分析中,全面考查对平台最不利的波浪工况对其安全性非常重要。根据规范和相关研究成果,同时结合对半潜平台结构特性的分析,得到一系列危险波浪载荷工况,采用设计波谱分析方法对目标平台进行水动力载荷预报和结构响应计算。结果表明目标平台的最危险控制工况是使平台产生横剖面最大水平扭转的斜浪工况,且该工况在规范推荐考察的工况之外,研究成果可为类似平台的总体强度分析提供参考。It is very important to consider the most dangerous wave case in the overall strength assessment of a semi-submersible platform. According to the rules and the related research results, some dangerous wave load working conditions are proposed by analyzing the structural properties of a semi-submersible platform. Spectral analysis method is used in the hydrodynamic loads calculation of aimed platform and then stress level of platform is obtained through structural analysis. The results show that the diagonal wave working condition generating the maximum twisting moment about the working condition and is beyond the load working transverse section of the platform is the most critical load condition recommended by the rules, the conclusions will helpful for similar deepwater semi-submersible platform.

关 键 词：半潜平台 波浪工况 总体强度 剖面载荷 

分 类 号：P751[交通运输工程—港口、海岸及近海工程]