玻纤增强柔性管等效简化模型研究

发布时间：2018-01-28 02:07

  本文关键词： 海洋柔性管 玻纤增强柔性管 力学性能 等效简化模型 海底管道 油气输送　出处：《海洋工程》2017年06期 　论文类型：期刊论文

【摘要】：玻纤增强柔性管作为一种新型海底油气输送管道,具有比强度高、柔度大和抗腐蚀性强等特点,因此在深海油气开发中具有非常广阔的应用前景。玻纤增强柔性管主要由内衬层、增强层和外保护层组成,其中增强层的等效模拟是玻纤增强柔性管设计成功与否的关键。根据玻纤增强柔性管的结构特征和材料特性,选取了四种不同的等效简化模型,对比研究了玻纤增强柔性管在轴向拉压荷载、弯曲荷载以及内压荷载作用下的力学性能。将不同简化模型的计算结果与相应的试验数据进行对比,进行等效模型的优选。研究结果表明,在内压载荷和弯曲载荷作用下,基于Halpin-Tsai模型数值结果与试验结果最为接近。在轴向载荷作用下,采用分离式模型或回形模型计算精度更高,若材料达到屈服状态时,则建议采用分离式模型进行模拟。
[Abstract]:As a new type of submarine oil and gas pipeline, glass fiber reinforced flexible pipe has the characteristics of high specific strength, high flexibility and strong corrosion resistance. Glass fiber reinforced flexible pipe is mainly composed of inner liner layer, reinforced layer and outer protective layer. The equivalent simulation of the reinforcement layer is the key to the successful design of glass fiber reinforced flexible tube. According to the structural and material characteristics of glass fiber reinforced flexible tube, four different equivalent simplified models are selected. The mechanical properties of glass fiber reinforced flexible pipe under axial tension and compression load, bending load and internal pressure load are compared. The calculated results of different simplified models are compared with the corresponding experimental data. The results show that the numerical results based on the Halpin-Tsai model are most close to the experimental results under the action of internal pressure and bending load. The separation model or the return model is more accurate, if the material reaches the yield state, it is suggested that the separated model be used for simulation.
【作者单位】： 中国海洋大学山东省海洋工程重点实验室;
【基金】：国家杰出青年科学基金(51625902) 工信部柔性管项目 山东省泰山学者工程计划(TS201511016)
【分类号】：P756.2;TE973
【正文快照】： 图1玻纤增强柔性管Fig.1 Glass fiber-reinforced flexible pipe被重量轻、抗腐蚀性强、易于运输和安装的柔性管所替代[1]。柔性管根据制造工艺不同可分为非黏结型柔性管和黏结型柔性管[2],黏结型柔性管根据增强材料不同可分为碳纤维增强柔性管、玻纤增强柔性管、芳纶纤维增强，

本文编号：1469466