Published: 30 September 2012

Study on analysis method for deepwater TTR coupled vibration of parameter vibration and vortex-induced vibration

Wu Xue-min1
Huang Wei-ping2
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Abstract

Considering the vertical vibration, caused by floating platform, of top tensioned riser (TTR), an analysis method for the coupled vibration of parameter excited vibration and vortex-induced vibration is presented in this paper. With the section rotation and shear deformation due to the bending large displacement of TTR, a coupled vibration model of parameter excited vibration and vortex-induced vibration is put forward. And the vortex-induced vibration (VIV) of a TTR for 1500 m water depth is analyzed based on the model. The results show that the vertical vibration caused by floating platform increases transverse vibration displacement of TTR.

About this article

Received
13 April 2012
Accepted
04 September 2012
Published
30 September 2012
Keywords
deepwater riser
TTR
vortex-induced vibration (VIV)
fluid-structure interaction
parameter excited vibration