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海底管线强度评估中的两个问题
Zeng XH(曾晓辉); Xing JZ(邢静忠); Liu CT(柳春图)
Source Publication中国造船
2002
Volume43Issue:Pages:180-186
ISSN1000-4882
Abstract海底管线是海上油气田生产设施的重要组成部分,它一旦发生破坏会在各方面引起重大损失.挖沟和提吊引起应力超标是海底管线两种重要的破坏形式.挖沟和提吊问题的难点是:1)二者都是动边界问题,悬空长度本身就是未知量;2)挖沟问题中应考虑台阶升高处土壤支持的弹性影响(这比刚性处理更准确,但这会使边界条件更复杂);3)提吊是一个几何非线性问题,求解难度较大.本文给出挖沟和提吊作业状态下,海底管线的强度分析方法.在挖沟分析中,采用线性梁理论,将台阶升高处的土壤支持处理为线性弹簧.在提吊问题中,将管线模型化为大位移梁,采用打靶法,将边值问题转变为初值问题求解.文中还给出有关的典型数值计算结果.
Subject Area力学
Indexed By其他
Language中文
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/15880
Collection力学所知识产出(1956-2008)
流固耦合系统力学重点实验室
Recommended Citation
GB/T 7714
Zeng XH(曾晓辉),Xing JZ(邢静忠),Liu CT(柳春图). 海底管线强度评估中的两个问题[J]. 中国造船,2002,43,增,:180-186.
APA Zeng XH,Xing JZ,&Liu CT.(2002).海底管线强度评估中的两个问题.中国造船,43(增),180-186.
MLA Zeng XH,et al."海底管线强度评估中的两个问题".中国造船 43.增(2002):180-186.
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