| 海洋石油管道单点提升分析 |
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| 引用本文： | 邢静忠 柳春图 等. 海洋石油管道单点提升分析[J]. 海洋工程, 2002, 20(3): 29-33 |
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| 作者姓名： | 邢静忠 柳春图 等 |
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| 作者单位： | 中国科学院,力学研究所,北京,100080 |
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| 摘 要： | 基于管道微单元体平衡建立了海管单点提升的非线性力学模型的控制微分方程组 ,使用变弧长的无量纲代换将动边界问题化为固定边界的两点边值问题 ,利用Maple环境下编制的两点边值问题的打靶法程序得到了该问题在各个提升阶段的数值解答和在单点提升过程中管道的极限弯矩约为 0 .71q1 3(EI) 2 3。
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| 关 键 词： | 海管提升 非线性分析 打靶法 |
| 文章编号： | 1005-9865(2002)03-0029-05 |
| 修稿时间： | 2001-11-02 |
Nonlinear analysis of submarine pipelines during single point lifting |
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| XING Jing zhong,LIU Chun tu,ZENG Xiao hui. Nonlinear analysis of submarine pipelines during single point lifting[J]. The Ocean Engineering, 2002, 20(3): 29-33 |
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| Authors: | XING Jing zhong LIU Chun tu ZENG Xiao hui |
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| Abstract: | Based on the equilibrium of pipe elements, an equation system of nonlinear mechanics modeling of single point lifting is built. The moving boundary problem is converted to a two point boundary problem with the fixed boundary problem after using varied arc dimensionless transformation. Numerical solutions in varied states are obtained in Maple environment with shooting method program of two point boundary condition problem, and the limit moment of the pipe during lifting obtained is about 0.71 q 1/3 (EI) 2/3 . |
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| Keywords: | pipeline lift nonlinear analysis shooting method |
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