| 海底管道受坠物锚击损伤试验与数值模拟研究 |
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| 引用本文： | 黄启峰,郭海燕,李伟,李晓秋.海底管道受坠物锚击损伤试验与数值模拟研究[J].海洋工程,2018,36(3):84-88. |
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| 作者姓名： | 黄启峰 郭海燕 李伟 李晓秋 |
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| 作者单位： | 中国海洋大学工程学院;中海油能源发展股份有限公司安全环保分公司技术研发中心 |
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| 基金项目： | 山东省科技重大专项（2015ZDZX04003） |
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| 摘 要： | 为探索海底管道在锚击作用下的损伤规律,通过海底管道损伤试验和数值模拟,研究了坠物质量、坠落高度和坠物形状对海底管道机械损伤的影响,并结合试验结果修正了Ellinas-Wallker公式。研究结果表明:管道的凹陷损伤随坠物质量和坠落高度的增大而变大;在相同质量的立方体、球体和模型锚三种形状坠物作用下,球体坠物对管道的损伤最严重;EllinasWallker公式计算结果偏于保守,修正后计算结果与试验和数值模拟结果吻合良好。研究结果可以为海底管道的工程设计及应用提供一定的参考。
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| 关 键 词： | 海底管道 锚击 撞击试验 数值模拟 凹陷损伤 公式修正 |
Numerical simulation and experimental study on the damage of submarine pipeline impacted by dropped objects |
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| HUANG Qifeng,GUO Haiyan,LI Wei and LI Xiaoqiu.Numerical simulation and experimental study on the damage of submarine pipeline impacted by dropped objects[J].Ocean Engineering,2018,36(3):84-88. |
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| Authors: | HUANG Qifeng GUO Haiyan LI Wei and LI Xiaoqiu |
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| Institution: | College of Engineering, Ocean University of China, Qingdao 266100, China,College of Engineering, Ocean University of China, Qingdao 266100, China,College of Engineering, Ocean University of China, Qingdao 266100, China and Safety & Environmental Protection Branch, CNOOC Energy Technology & Services Limited, Tianjin 300452, China |
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| Abstract: | In order to explore the damage law of the submarine pipeline impacted by dropped objects, through damage experiment and numerical simulation of submarine pipeline, this article studies the mass of the dropped objects, the falling height and the shape of the dropped objects, and their influence on submarine pipelines. According to experimental data, Ellinas-Wallker formula is revised. Research results indicate that the pipeline dent damage increases with the increase of the mass and falling height; under the action of the dropped objects among cube, sphere and anchor models, the sphere causes the most severe dent damage of pipeline; the theoretical calculation results of Ellinas-Wallker formula are conservative, and the results of formula modification are in good agreement with experimental data and numerical simulation. The research can provide a reference basis for engineering design and application. |
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| Keywords: | submarine pipeline anchor shot impact experiment numerical simulation dent damage formula modification |
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