撑杆结构形式的变化对半潜式平台性能的影响  

Influence of Brace Structure Change on Deepwater Semi-submersible Platform Performance

作　　者：杨文林[1] 朱双龙[2] 

机构地区：[1]渤海船舶职业学院船舶工程系,辽宁葫芦岛125005 [2]江苏科技大学船舶与海洋工程学院,江苏镇江212003

出　　处：《船舶工程》2013年第3期94-97,111,共5页Ship Engineering

摘　　要：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。With the synthesis of Morison equation and three-dimensional potential flow theory, a relative analysis of heave, wave load prediction and structural strength among three brace-styles of semi-submersible platforms is made by means of SESAM software. The design wave parameters are determined by using random design wave method, thus the conclusion that the wave load in the state of longitudinal shear force between pontoons is the worst is put forward. At the same time, three-dimensional FEM model is established to analyze structural strength of the platforms and the yielding check is carried out for same key joints of platforms based on ABS Rules. All works can be served as a reference for the performance study of semi-submersible platforms＇ primary design.

关 键 词：半潜式平台 撑杆结构 结构强度 垂荡响应 波浪载荷 

分 类 号：P751[交通运输工程—港口、海岸及近海工程] U674.381[天文地球—海洋科学]