论文部分内容阅读
随着世界范围内深海石油开采的需要,近年来关于海洋结构物涡激振动的研究越来越受到重视。虽然此问题在数值模拟和实验方面都已取得了一定的进展,但是还有许多问题尚待解决。同时,新型海洋结构物的引入给涡激振动的预报方法和抑振手段提出了新的挑战。因此,细长海洋结构物的涡激振动仍将是未来几年里备受关注的研究课题。本文在介绍有关涡激振动基本概念和理论背景的基础上,总结了近年来关于以深水立管为代表的海洋结构物涡激振动的研究与进展,包括对现有涡激振动分析工具的分类与评估;对柱体及海洋结构物涡激振动的实验研究;对深水立管与涡激振动相关的疲劳评估准则的研究;海洋结构物的横向、流向及轴向涡激振动的耦合作用研究;关于海洋结构物涡激振动的抑振措施和设备的理论及实验研究。本文着重介绍了计算流体力学方法在海洋结构物涡激振动研究中的应用和进展。最后,对海洋结构物涡激振动相关的研究热点的现状进行了总结并对今后工作提出了展望。
With the need of deep-sea oil exploration in the world, the research on vortex-induced vibration of marine structures has drawn more and more attention in recent years. Although this issue has made some progress in numerical simulation and experiment, there are still many problems to be solved. Meanwhile, the introduction of a new type of marine structure presents a new challenge to the prediction method of vortex-induced vibration and the means of suppressing vibration. Therefore, the vortex-induced vibration of slender marine structures will still be the subject of much research in the coming years. Based on the introduction of the basic concepts and theoretical background of vortex-induced vibration, this paper summarizes the research and progress of vortex-induced vibration of marine structures represented by deep-water risers in recent years, including the classification of existing vortex-induced vibration analysis tools And assessment; experimental study on vortex-induced vibration of column and offshore structures; study on fatigue assessment criteria related to vortex-induced vibration of deep-water risers; study on the coupling effects of transverse, flow and axial vortex-induced vibration of marine structures ; Theoretical and experimental research on the vibration suppression measures and equipment of vortex-induced vibration of marine structures. This article focuses on the application and progress of computational fluid dynamics in the study of vortex-induced vibration of marine structures. Finally, the status quo of research hotspots related to vortex-induced vibration of marine structures is summarized and the future work is put forward.