Parametric resonance of submerged floating pipelines with bi-frequency parametric and vortex-induced oscillations excitations
Parametric resonance of submerged floating pipelines with bi-frequency parametric and vortex-induced oscillations excitations
复制标题
双频参数和涡激振荡激励下的水下浮动管道参数共振
DOI：
10.1080/17445302.2016.1171590
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发表时间：
2017-04
影响因子：
2.1
通讯作者：
Xiao Fei
中科院分区：
文献类型：
--
作者：
Yang Hezhen;Wang Zhiqian;Xiao Fei
摘要本文研究了水下浮管在涡激激励下的参数共振。水下浮管被认为是深水流体输送的一种潜在解决方案。然而，由于涡激振动引起的参数共振会导致管道的剧烈运动和疲劳破坏，因此必须对其进行设计。因此，预测水下浮管系统的参数共振是十分必要的。推导了管道动力响应的双频Hill方程，指出涡激力是引起管道参数激励的主要原因。利用Hill稳定图分析了方程解的稳定性。比较了参数共振与涡激共振的区别。结果表明，水下浮管的刚体运动和横向振动都可能发生参数共振。当管道发生参数共振时，管道会同时在横向和纵向产生较大的振动，而仅涡激共振是不可能发生的。为设计人员在设计潜浮管道时避免参数共振提供了一些有效的措施。
ABSTRACT This study investigates the parametric resonance of submerged floating pipelines during vortex-induced excitations. The submerged floating pipeline is considered as a potential solution for deep-water fluid transportation. However, the parametric resonance due to vortex-induced oscillations must be a major concern for its design, because it can lead to the huge motion and fatigue damage of the pipeline. Thus it is essential to predict the parametric resonance of the submerged floating pipeline system. Bi-frequency Hill's equations of the dynamic responses of the pipeline are derived, and vortex-induced forces are main causes of parametric excitations. Hill stability diagrams are used to analyse stability of solutions of the equations. The differences between the parametric resonance and vortex-induced resonance are also compared. The results show that the parametric resonance may take place in rigid body motion and transverse vibration of the submerged floating pipeline. The pipeline will have large vibration in both cross-line and in-line directions at the same time when the parametric resonance occurs, which, however, cannot happen in just the vortex-induced resonance. Some effective measures are given to designers to avoid the parametric resonance for the submerged floating pipeline design.
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影响因子：
5
作者：
Han-il Park;D. Jung
通讯作者：
Han-il Park;D. Jung
DOI：
--
发表时间：
2005
期刊：
--
影响因子：
--
作者：
Xiangqun Li
通讯作者：
Xiangqun Li
DOI：
10.1007/bf00536595
发表时间：
1980
期刊：
Ingenieur-Archiv
影响因子：
--
作者：
P. Pedersen
通讯作者：
P. Pedersen
DOI：
10.1115/1.4027805
发表时间：
2014-10
期刊：
Journal of Vibration and Acoustics
影响因子：
--
作者：
H. Zanganeh;N. Srinil
通讯作者：
H. Zanganeh;N. Srinil
影响因子：
2.1
作者：
K. Park;Y.T. Kim;D.K. Kim;S. Yu;H. Choi
通讯作者：
K. Park;Y.T. Kim;D.K. Kim;S. Yu;H. Choi