| 海底柔性管道的抗内压分析和设计 |
| 投稿时间：2013-06-13 修订日期：2013-07-13 点此下载全文 |
| 引用本文：李鹏,马国君,汤明刚,阎军,岳前进.海底柔性管道的抗内压分析和设计[J].计算机辅助工程,2014,23(5):39-43. |
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| 基金项目:国家高技术研究发展计划（863计划） |
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| 中文摘要:针对浅水经济型海底柔性管道结构，建立其三维有限元数值模型，考虑金属铠装层之间的连接和接触，给出在内压作用下的各层构件力学性能的数值模拟结果.通过结果分析和相关参数调整发现各层的最大承压力不能进行线性叠加，其内压承担比例与各层结构的径向刚度有关.因此，可以通过合理分配径向刚度使各层结构同时达到屈服状态，从而充分利用材料并实现最优化结构设计. |
| 中文关键词:海底柔性管道 扁钢带 承压力 径向刚度 优化 三维有限元 |
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| Analysis and design on subsea flexible pipe under internal pressure |
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| Abstract:A 3D finite element model is built for an economic subsea flexible pipe applied in shallow water. Considering the connection and contacts between metal armor layers, the mechanics properties of the components of each layer is numerically simulated under the internal pressure. According to the analysis results and the related parameter adjustment, it is found that the maximum bearing pressure of each layer cannot have a linear superposition. The maximum pressure bearing proportion for each layer is related to the radial stiffness. Therefore, each layer can be yielded at the same time through the reasonable distribution of radial stiffness, and the material can be fully utilized and the optimal structure design can be implemented. |
| keywords:subsea flexible pipe steel tape bearing pressure radial stiffness optimization 3D finite element |
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