300 m水深级深水导管架拖航分析方法  

On the Towing Analysis Method of 300 m Deep-water Jacket

作　　者：张艳芳[1] 赵佳宁[1] 黄怀州[1] 王亮[1] 袁玉杰[1] ZHANG Yan-fang;ZHAO Jia-ning;HUANG Huai-zhou;WANG Liang;YUAN Yu-jie(Offshore Oil Engineering Co.,Ltd.,Tianjin 300452,China)

机构地区：[1]海洋石油工程股份有限公司,天津300452

出　　处：《船海工程》2023年第2期102-104,136,共4页Ship & Ocean Engineering

基　　金：中国海洋石油集团有限公司(CNOOC-KJ 135 GJJS 28 GC 2020-01)。

摘　　要：由拖航驳船与导管架运动耦合分析得出船体变形,分别考虑静水、中垂、中拱变形与运动产生的惯性力荷载共同作用,从而得到导管架拖航运动过程中的结构受力,该方法改变了常规算法中刚性船体的假设,充分考虑船体柔性产生的变形,即为柔性船体法。计算结果表明,300 m水深级导管架刚性船体与导管架变形匹配性差异产生了较高的位移荷载,已无法满足深水导管架设计需要;而应用柔性船体法高应力杆件数量明显减少,高应力杆件集中出现的区域应力下降约30%,变形趋势更为平缓,分析提出的柔性船体法更适用于300 m水深级导管架拖航分析。The hull deformation was obtained through the motion coupling analysis of the towing barge and jacket.The stress of jacket under wave loadings and inertia forces was calculated and analyzed.This method gave up the assumption of rigid hull in the conventional method,and the deformation of flexible hull was considered,so it can be called flexible hull method.The numerical results showed that the difference of deformation between rigid hull and the 300 m water depth jacket platform leads to highersss displacement loading,which is not suitable for design of the 300 m deep-water jacket;with the flexible hull method,the number of high-stress members decreases,the largest stress decreases by 30%and the deformation becomes smaller.So that the flexible hull method is more suitable for the towing analysis of 300 m deep-water jacket.

关 键 词：深水导管架 拖航分析 刚性船体 柔性船体 SACS MOSES 

分 类 号：U674.38[交通运输工程—船舶及航道工程]