| 整体式止屈器数值模拟方法与优化研究 |
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| 引用本文： | 颜铠阳,余建星,余杨,韩梦雪,许伟澎,张春迎.整体式止屈器数值模拟方法与优化研究[J].海洋工程,2020,38(6):77-85. |
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| 作者姓名： | 颜铠阳 余建星 余杨 韩梦雪 许伟澎 张春迎 |
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| 作者单位： | 天津大学 水利工程仿真与安全国家重点实验室, 天津 300072;天津大学 天津市港口与海洋工程重点实验室, 天津 300072 |
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| 摘 要： | 海底管道是海洋石油主要的运输方式，但海底管道在外部静水压力作用下很可能发生局部屈曲压溃，造成灾难性后果。安装止屈器可有效阻止屈曲传播，保证管道安全，整体式止屈器在实际中应用最为广泛。整体式止屈器存在通过减小止屈器体积以节约成本进行优化的可能性，因此，在保证止屈器止屈效果的前提下，可通过减小止屈器的体积，以达到减轻重量、节约成本、减少安装难度等多种目的。研究过程中使用ABAQUS进行模型的仿真模拟，比较了广义弧长法的优缺点，决定选用更方便的静水流体单元法，计算得到不同止屈器的穿越压力以及相应的体积，对比各止屈器的穿越压力变化和体积变化，实现结构优化的目标。基于以上研究，可以得出减少止屈器体积的结构优化方案具有可行性的结论。
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| 关 键 词： | 管道屈曲 整体式止屈器 数值模拟 结构优化 |
| 收稿时间： | 2019/11/9 0:00:00 |
Study of integral buckle arrestors design |
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| YAN Kaiyang,YU Jianxing,YU Yang,HAN Mengxue,XU Weipeng,ZHANG Chunying.Study of integral buckle arrestors design[J].Ocean Engineering,2020,38(6):77-85. |
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| Authors: | YAN Kaiyang YU Jianxing YU Yang HAN Mengxue XU Weipeng ZHANG Chunying |
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| Institution: | State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300072, China;Tianjin Key Laboratory of Port and Ocean Engineering, Tianjin University, Tianjin 300072, China |
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| Abstract: | Submarine pipelines are the main mode of transportation for offshore oil, but under the influence of external hydrostatic pressure, submarine pipelines are very likely to suffer local buckling and collapse, with disastrous consequences. Installation of a buckle arrestor at a critical position in the pipeline is an effective measure to prevent buckling propagation and collapse. The integral buckle arrestors are the most widely used in practical applications. There is a possibility that the integral buckle arrestors can be optimized by reducing the size of the integral buckle arrestors in order to save costs. Therefore, this study mainly aims to reduce the size of the integral buckle arrestors and to reduce the integral buckle arrestors'' weight and cost, not to mention the ease of installation, and other purposes. ABAQUS is used to simulate the model during the study. Compared with the method of Riks, the method of F3D4 has more advantages.The traversing pressure of the integral buckle arrestors is calculated, and then the volume of different integral buckle arrestors is calculated. Finally, the traverse pressure variation and the corresponding volume change of each model are compared to obtain structural optimization. Based on the above research, it can be seen that the integral buckle arrestors are suitable for the optimized design with reduced volume. |
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| Keywords: | pipeline buckling integral buckle arrestor numerical simulation optimization |
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