摘要
总结近年来桁架式桩腿自升式平台的海损,回顾逆"K"型桩腿的演变,强调设计鲁棒性管节点的重要性。实现管节点的参数化建模,考察单元选取与划分、材料模型、焊缝的影响、边界条件与受力模式以及破坏准则。最后用ANSYS非线性求解器分析了F&G"JU-2 000E"管节点的极限强度,显示叠合对提高节点极限强度的重要性。
This paper further outlines the accidents and losses of jack-ups with truss-type legs in recent years, retrospects the evolution of reverse ＂K＂ joint,, and emphasizes the importance of robust joint design. A parametric modelling approach has lyses with the consideration of element type and been developed for the tubular joint strength ana- meshing size, stress-strain model, influence of welds, boundary conditions, application of forces, and failure criterion. In the last section, the An sys nonlinear solution is used to investigate the ultimate joint strength of FI^G ＂JU-2 000E＇. The ef fectiveness of overlapping in increasing the joint strength is clearly highlighted.
出处
《中国海洋平台》
2012年第4期20-28,共9页
China offshore Platform
