| 含缺陷海底管道横向屈曲理论研究 |
| |
| 引用本文： | 刘羽霄,李昕,周晶.含缺陷海底管道横向屈曲理论研究[J].船舶力学,2011,15(9). |
| |
| 作者姓名： | 刘羽霄 李昕 周晶 |
| |
| 作者单位： | 山东工商学院管理科学与工程学院,山东烟台264005;大连理工大学海岸与近海工程国家重点实验室,辽宁大连116023;大连理工大学海岸与近海工程国家重点实验室,辽宁大连,116023 |
| |
| 基金项目： | 国家自然科学基金项目重点项目:“海底管线的损伤机理和健康诊断研究(50439010)”; 中央高校基本科研业务费专项项目“深海油气管道全寿命安全运行的关键基础问题(DUT10ZD201)”~~ |
| |
| 摘 要： | 考虑了初始几何缺陷对管道屈曲临界载荷的影响,基于经典热屈曲理论,推导了平坦海床上裸铺管道横向屈曲临界载荷的理论公式,给出了无限远处管道轴向力的计算公式及临界温度的计算公式。建立了平坦海床上裸铺管道的非线性有限元模型,并将有限元结果与解析结果进行了对比,验证了解析公式的合理性。
|
| 关 键 词： | 海底管道 横向屈曲 临界载荷 初始几何缺陷 解析解 |
Analytical Study of Imperfect Pipeline on Lateral Buckling |
| |
| LIU Yu-xiao,LI Xin,ZHOU Jing.Analytical Study of Imperfect Pipeline on Lateral Buckling[J].Journal of Ship Mechanics,2011,15(9). |
| |
| Authors: | LIU Yu-xiao LI Xin ZHOU Jing |
| |
| Institution: | LIU Yu-xiao1,2,LI Xin2,ZHOU Jing 2(1 Management Science and Engineering College,Shandong Institute of Business and Technology,Yantai 264005,China,2 State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology,Dalian 116023,China) |
| |
| Abstract: | Based on the theory of thermal buckling,and considering the effect of initially imperfect geometry on lateral buckling of subsea pipeline installed on the seabed,analytical solutions to critical axial forces in buckling segment and away from buckling segment as well as critical temperature are deduced.The nonlinear finite element model to study lateral buckling of subsea pipeline is established.The comparisons between analytical and numerical results validate analytical solutions. |
| |
| Keywords: | submarine pipeline lateral critical buckling force initial imperfection analytical solutions |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
