大型浮式平台结构强度

Structure Strength of Large Floating Platform

由于目前针对多模块大型浮式平台没有相应成熟的规范,有必要通过波浪载荷直接计算和结构强度直接计算进行平台的结构设计。基于三维势流理论和边界元法进行波浪载荷的计算,采用有限元方法进行平台结构的建模和结构强度计算,并将波浪载荷传递到结构模型上。采用设计波法定义波浪工况,验证平台结构在设计海况下的结构响应。研究表明该平台能够满足在设计海况下的结构设计要求,本文采用的载荷和结构强度直接计算方法可为本平台结构设计提供技术依据,并且对今后类似浮式平台的结构设计具有指导意义。

Because there is no mature norm corresponding to multiple-module large floating platform,it is necessary to design the platform through direct calculation of wave load and structure strength.The wave load is calculated based on the three-dimensional potential flow theory and the boundary element method.The finite element method is used to simulate the platform structure,and the wave load is transmitted to the structural model.The wave load is defined by the design wave method to verify the structural response of the platform structure under the design load condition.The research shows that the platform structure can meet the structural design requirements under the design load condition.The direct calculation method provides the technical basis for the structural design of the platform,and has guiding significance for the structural design of similar floating platform in the future.