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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。
Semi-submersible platform for the overall strength analysis, a comprehensive examination of the most unfavorable platform conditions on the security of its work is very important. According to the norms and related research results, a series of hazardous wave loading conditions were obtained by analyzing the structural characteristics of the semi-submersible platform. The hydrodynamic load forecast and the structural response of the target platform were calculated by using the designed spectrum analysis method. The results show that the most dangerous control condition of the target platform is the condition of inclined wave that makes the platform have the maximum horizontal cross-section twist, and the condition can be provided for the similar platform’s overall strength analysis reference.