Research of Optimization Inverse Analysis Technique on CorrosionIdentification of Buried Pipeline Wall

机译：埋管壁腐蚀识别的优化逆分析技术研究

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The corrosion identification of buried oil and gas pipeline wall is studied by the wayrnof observing strain value of pipeline ektexine under work pressure. The least squarernmethod is applied for establishing geometric parameter identification model ofrnpipeline wall. Based on wall radius and eccentricity which are defined as designrnvariables, the optimization of finite element method is also applied for inversernanalysis. The size and location of corrosive area can be identified by strain change ofrnpipeline ektexine. It is verified that this method is effective, precise and valuable byrnnumerical simulation.

机译：通过在工作压力下通过观测管道ektexine的应变值，研究了地下油气管道壁的腐蚀识别。应用最小二乘方法建立管道壁几何参数辨识模型。基于定义为设计变量的壁半径和偏心距，有限元方法的优化也用于反分析。腐蚀区域的大小和位置可以通过管道ektexine的应变变化来确定。数值仿真验证了该方法是有效，准确，有价值的。

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来源
《Advances and experiences with pipelines and trenchless technology for water, sewer, gas, and oil applications》|2009年|p.1624-1630|共7页
会议地点 Shanghai(CN);Shanghai(CN)
作者
Qingzhi Yan; Xiangzhen Yan; Xiujuan Yang; Lisong Zhang;
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作者单位

College of Storage Transportation and Architectural Engineering, ChinarnUniversity of Petroleum Dongying, 257061, Shandong, China PH(86)546- 8392356.rnEmail: yanqzhi@163.com;

rnCollege of Storage Transportation and Architectural Engineering,rnChina University of Petroleum Dongying, 257061, Shandong, China PH: (86)546-rn8392356. Email: yanxzh@163.com;

rnCollege of Storage Transportation and Architectural Engineering,rnChina University of Petroleum Dongying, 257061, Shandong, China PH:(86)546-rn8391820. Email: yangxj999@163.com;

rnCollege of Mechanical and Electronic Engineering, China University ofrnPetroleum Dongying257061, Shandong, China PH(86)546-8391820 Email:rnlisongliseng@163.com;

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原文格式 PDF
正文语种 eng
中图分类管道运输;
关键词
buried pipeline; wall corrosion; optimization; inverse analysis; finite element;

机译：地下管道;壁腐蚀;优化;反分析;有限元;

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Research of Optimization Inverse Analysis Technique on CorrosionIdentification of Buried Pipeline Wall

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