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中文摘要：
深海细长柔性立管的涡激振动与刚性圆柱的涡激振动问题相比,既有联系又有区别.当立管的长细比（L/D）较大时,会展现出一些刚性圆柱涡激振动没有的现象.本文介绍了近几十年来深海开发的细长柔性立管涡激振动的研究进展,主要侧重于数值计算分析研究领域,对目前常用的数值分析方法进行了归纳和总结.在此基础之上,详细介绍了目前理论研究和实际工程中的热点问题,诸如流场剖面的影响、立管顶端浮体运动的耦合、涡激振动抑制措施、振动多模态特性等.
英文摘要：
The Vortex-Induced Vibrations （VIVs） of long slender flexible risers in deep sea are related to but different from VIV of rigid cylinders. When their aspect ratio （L/D） is large, flexible risers will show some phenomena that rigid cylinders do not possess. This paper reviews the progress of research on the VIV of long slender flexible risers in deep sea in recent years. It focuses on the numerical studies and summarizes the frequently-used numerical analytical methods. On this basis, it introduces the research hotspots in recent theoretical study and practical engineering, such as the influence of flow field profile, the coupling of floating body＇s movement on the top of risers, the suppression of VIV, and the multi-mode vibration.
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