崔鹏,郭海燕,顾洪禄,李效民,李福恒

• 1:中国海洋大学工程学院

摘要(Abstract)：

为研究深水顶张力立管的三维涡激振动(VIV)响应特性，本文基于向量式有限元法(VFIFE),采用弹簧模型模拟张紧器对立管的作用，考虑立管轴向变形对立管涡激振动的影响，建立深海立管的三维非线性振动模型，并结合Modified-Rayleigh尾流振子模型，对立管顺流向、横向和垂向三维涡激振动进行了分析。通过与试验对比，本文模型能够较准确地预报立管的涡激振动动力响应。分析结果表明：立管轴向变形会引起立管轴向张力的明显增大，在立管分析中，轴向变形引起的轴向张力变化是不可忽略的。

关键词(KeyWords)： 顶张力立管;向量式有限元;三维模型;涡激振动;尾流振子模型

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(U2006226,51979257);; 山东省自然科学基金项目(ZR2020ME261,ZR2019MEE032)资助~~

作者(Author): 崔鹏,郭海燕,顾洪禄,李效民,李福恒

DOI: 10.16441/j.cnki.hdxb.20210239

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