Influence of the internal varying density flow on the vibrations and fatigue damage of a top-tensioned riser undergoing vortex-induced vibrations

•When the internal fluid density fluctuates with a small circular frequency, the VIV riser will be largely affected. The vibrations may beat with time and contain multiple frequencies.•As the mean value or fluctuation amplitude of the internal varying fluid density increases, the fatigue damage of t...

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Veröffentlicht in:	Applied ocean research 2021-12, Vol.117, p.102955, Article 102955
Hauptverfasser:	Xie, Wude, Xin, Weiyan, Zhang, Hongqiang
Format:	Artikel
Sprache:	eng
Schlagworte:	Damage Density Density flow Fatigue damage Fluid flow Natural gas Ocean currents Ocean floor Offshore engineering Top-tensioned riser Varying density flow Vortex-induced vibrations Work platforms
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