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浮式平台横荡运动对水下柔性立管涡激振动的影响
Alternative TitleImpact of floating top sway on the vortex-induced vibration of submarine riser
陈伟民; 郑仲钦; 郭双喜
Source Publication海洋工程
2014
Volume32Issue:3Pages:8-13,27
ISSN1005-9865
Abstract由于深水浮式平台的运动幅度较固定式平台增大,其运动与下部立管的动力耦合变得更加明显。研究了上部平台运动对水下立管涡激振动的影响,基于有限元数值模拟,建立了与结构运动耦合的立管尾迹流场的涡激升力、流体阻力模型,进行了“平台运动-立管涡激振动”整体系统的动响应数值模拟,分析了平台横荡运动的幅值、频率等因素对水下立管涡激振动的影响。结果表明,上部平台的振动会在沿着立管展向传播的过程中被放大(称为响应放大) ; 与不考虑平台运动相比,立管的动响应位移增大了多倍,而且振幅放大倍数随着模态阶数的降低而增大; 平台横荡振幅越大,立管振动幅值也越大,但是振幅放大倍数的变化不明显。
Keyword横荡 流固耦合 立管 涡激振动
Indexed ByCSCD
Language中文
Funding Organization国家自然科学基金重点项目(11232012)
CSCD IDCSCD:5152598
DepartmentLMFS海洋环境与工程(LEM)
Citation statistics
Cited Times:1[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/49161
Collection流固耦合系统力学重点实验室
Recommended Citation
GB/T 7714
陈伟民,郑仲钦,郭双喜. 浮式平台横荡运动对水下柔性立管涡激振动的影响[J]. 海洋工程,2014,32(3):8-13,27.
APA 陈伟民,郑仲钦,&郭双喜.(2014).浮式平台横荡运动对水下柔性立管涡激振动的影响.海洋工程,32(3),8-13,27.
MLA 陈伟民,et al."浮式平台横荡运动对水下柔性立管涡激振动的影响".海洋工程 32.3(2014):8-13,27.
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