论文部分内容阅读
以三种不同撑杆结构形式的半潜式平台为研究对象,采用Morison公式和三维势流理论相结合的方法,依托SESAM软件分别进行了垂荡响应运动、波浪载荷预报和结构强度的对比分析。运用谱分析法确定设计波参数,确定中纵剖面的最大纵向剪切状态时波浪载荷最恶劣,建立三维有限元模型完成了平台的结构强度分析,并结合ABS规范校核了平台关键部位的屈服强度。论文开展的研究对半潜式平台的前期设计有一定的参考价值。
Taking the semi-submersible platform of three different strut structures as the research object, the Morphology and three-dimensional potential flow theory are combined to analyze the heave response motion, the wave load prediction and the structural strength by SESAM software respectively . The parameters of the design wave were determined by spectral analysis, and the wave load was the worst when the maximum longitudinal shear state was established. The three-dimensional finite element model was established to analyze the structural strength of the platform, and the ABS code was used to check the yield of the key parts of the platform strength. The research carried out in the thesis has certain reference value for the preliminary design of semi-submersible platform.