摘要(Abstract)：
对正交式纤维增强复合材料海洋立管、优化后的纤维增强复合材料海洋立管和金属海洋立管进行基于流固耦合作用的三维计算流体动力学涡激振动模拟,探索不同材料的海洋立管的涡激振动特征;通过等效弹性模量法及层状结构法分别构建3种整体模型,通过System coupling模块与Fluent软件模拟所得的流场结果进行交互,以实现二者之间的耦合作用,并对比不同建模方式及不同种类立管在涡激振动作用下立管位移和应力响应的影响。结果表明:不同建模方式所得的涡激振动特征相近;结构的构造不同使得优化后的纤维增强复合材料海洋立管的位移及应力响应均大于正交式纤维复合材料海洋立管的;在涡激振动作用下,纤维增强复合材料海洋立管的振动幅值大于金属海洋立管的,其应力幅值小于金属海洋立管的,并且二者的变形与应力分布特征也显著不同,与不同种类海洋立管的几何构造尺寸、弹性模量、顶张力、支撑条件等有关。
关键词(KeyWords)：涡激振动;纤维复合材料海洋立管;流固耦合作用;计算流体动力学;数值模拟
基金项目(Foundation): 国家自然科学基金项目(51806130);; 山东省重点研发计划项目(2019GHY112076);; 山东省自然科学基金项目(ZR2017LEE031);; 山东省淄博市科技发展计划项目(2017KJ040017)
作者(Author): 葛士权,王春光,孙明钰,王有镗
DOI: 10.13349/j.cnki.jdxbn.2020.01.001
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