Session: 08-06-02: VIV of Flexible Risers and Cables

Paper Number: 79509

79509 - Numerical Investigation of the Effect of Vortex Induced Vibrations (VIV) Parameters on the Behavior of Submarine Power Cables: A Comparison With Scaled Down Experimental Results 

For an installed submarine power cable, fatigue is one of the main causes of failure. For static power cables there are cases such as free spans, span between touch-down point (TDP) and J/I-Tube bell mouth and repair/sea joint procedures that may lead to failure due to fatigue as a result of Vortex Induced Vibrations (VIV). Similar failure modes are applicable to dynamic cables since they are exposed to current flows for an operational life of more than 25 years. Although much research has been done in the field of oil and gas for VIV phenomena on flexible pipe lines, there is no extended and in-depth corresponding literature on submarine power cables. The scope of the present work is to investigate and demonstrate the effect of parameters such as damping ratio, reduced bandwidth and added mass coefficient on the VIV behavior of submarine power cables, static & dynamic. The standard industry software “Shear7” is used in order to assess these parameters. Finally, a comparative study was performed with the results of a real scale down experiment, which took place in the basin of Maritime Research Institute of Netherlands within the scope of the Horizon 2020  FLOTANT project and studied the response of a towed dynamic power cable.

Presenting Author: Panagiotis Delizisis Hellenic Cables

Authors:

Panagiotis Delizisis Hellenic Cables
Konstantinos Grivas Hellenic Cables
Jaap De Wilde Marin Research Institute
Erik-Jan De Ridder Marin Research Institute
Themistocles L Resvanis Massachusetts Institute of Technology
Georgios Georgallis Hellenic Cables