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| 含体积型缺陷管道强度的有限元数学模型研究 | |
| 引用本文： | 李毅,詹燕民,向安,李再春,刘伟,陈雅楠,曹宏远. 含体积型缺陷管道强度的有限元数学模型研究[J]. 石油工程建设, 2014, 0(1): 1-4 |
| 作者姓名： | 李毅 詹燕民 向安 李再春 刘伟 陈雅楠 曹宏远 |
| 作者单位： | 中海石油(中国)有限公司天津分公司;天津亿利科能源科技发展股份有限公司 |
| 摘 要： | 石油天然气管道普遍存在因腐蚀造成的体积型缺陷,而且随着服役时间的延长不断恶化,最终导致管道破坏失效。本研究以保障管道运行安全为目的,对含体积型缺陷管道剩余强度进行了研究。利用有限元软件分析了由于管道内部腐蚀缺陷引起的表面应力场,归纳了引起管道表面微应变变化的影响因素,利用软件拟合出相应的方程,建立了管壁应变与影响因素对应的三维模型,为进一步进行管道安全评估提供基础理论依据。 |
| 关 键 词： | 含体积缺陷管道 有限元分析 应力场 数学模型 |
Mathematical Model Based on Finite Element Analysis for Strength of Pipeline with Volumetric Type Flaws |
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| Li Yi;Zhan Yanmin;Xiang An;Li Zaichun;Liu Wei;Chen Yanan;Cao Hongyuan. Mathematical Model Based on Finite Element Analysis for Strength of Pipeline with Volumetric Type Flaws[J]. Petroleum Engineering Construction, 2014, 0(1): 1-4 | |
| Authors: | Li Yi Zhan Yanmin Xiang An Li Zaichun Liu Wei Chen Yanan Cao Hongyuan |
| Affiliation: | Li Yi;Zhan Yanmin;Xiang An;Li Zaichun;Liu Wei;Chen Yanan;Cao Hongyuan;CNOOC (CHINA) Limited-Tianjin;E-Tech Energy Technology Development Co., Ltd.; |
| Abstract: | The volumetric type flaws caused by corrosion are ubiquitous in petroleum pipelines. With the extension of service time it will be worsening, and eventually leading to pipeline failure. In order to guarantee the pipeline safe operation, this research focuses on the influence factors of pipeline strength. Utilizing the finite element software to analyze the surface strain of the pipeline which has the internal volumetric type flaws, and the numerical equation is induced to reflect the factors which affect the pipe surface strain, and a three-dimensional mathematical model is established. This research provides theoretical basis of pipeline safety assessment. |
| Keywords: | pipeline with volumetric type flaw finite element analysis stress field mathematical model |
| 本文献已被 CNKI 维普 等数据库收录！ | |