基于船体变形数值仿真的FPSO管道应力分析
Pipeline Stress Analysis Based on Numerical Simulation of Hull Deformation
卜宗儒 1窦培林 1袁洪涛 2王超2
作者信息
- 1. 江苏科技大学 船舶与海洋工程学院,江苏 镇江 212100
- 2. 上海外高桥造船有限公司,上海 200137
- 折叠
摘要
为区别于传统经验公式计算管道应力的方法,采用有限元方法计算浮式生产储卸油装置(Floating Production Storage and Offloading,FPSO)船体变形,提取具体管道支架的位移值,并利用CAESAR Ⅱ软件进行管道应力计算.有限元预报得到的管道应力更加准确,而经验公式得到偏保守的结果.建议在对 FPSO管道进行初步设计时可采用经验公式方法,在进行详细设计和局部管道应力校核时可采用数值仿真方法.
Abstract
In order to be different from the traditional empirical formula method to calculate the pipeline stress,the finite element method is used to calculate the hull deformation of Floating Production Storage and Offloading(FPSO),the displacement values of concrete pipeline support are extracted,and the pipeline stress is calculated with CAESAR Ⅱ software.The pipeline stress obtained by finite element prediction is more accurate,while the result of empirical formula is more conservative.It is suggested that the empirical formula method can be used in the preliminary pipeline design,and the numerical simulation method can be used in the detailed design and local pipeline stress check.
关键词
浮式生产储卸油装置/管道/应力分析/船体变形/数值仿真/有限元/经验公式Key words
Floating Production Storage and Offloading(FPSO)/pipeline/stress analysis/hull deformation/numerical simulation/finite element/empirical formula引用本文复制引用
出版年
2024
NETL
NSTL
万方数据